FPDF error: Some data has already been output, can't send PDF file

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Uso essa versão do FPDF

<?php
/*******************************************************************************
* FPDF                                                                         *
*                                                                              *
* Version: 1.6                                                                 *
* Date:    2008-08-03                                                          *
* Author:  Olivier PLATHEY                                                     *
*******************************************************************************/

define('FPDF_VERSION','1.6');

class FPDF
{
var $page;               //current page number
var $n;                  //current object number
var $offsets;            //array of object offsets
var $buffer;             //buffer holding in-memory PDF
var $pages;              //array containing pages
var $state;              //current document state
var $compress;           //compression flag
var $k;                  //scale factor (number of points in user unit)
var $DefOrientation;     //default orientation
var $CurOrientation;     //current orientation
var $PageFormats;        //available page formats
var $DefPageFormat;      //default page format
var $CurPageFormat;      //current page format
var $PageSizes;          //array storing non-default page sizes
var $wPt,$hPt;           //dimensions of current page in points
var $w,$h;               //dimensions of current page in user unit
var $lMargin;            //left margin
var $tMargin;            //top margin
var $rMargin;            //right margin
var $bMargin;            //page break margin
var $cMargin;            //cell margin
var $x,$y;               //current position in user unit
var $lasth;              //height of last printed cell
var $LineWidth;          //line width in user unit
var $CoreFonts;          //array of standard font names
var $fonts;              //array of used fonts
var $FontFiles;          //array of font files
var $diffs;              //array of encoding differences
var $FontFamily;         //current font family
var $FontStyle;          //current font style
var $underline;          //underlining flag
var $CurrentFont;        //current font info
var $FontSizePt;         //current font size in points
var $FontSize;           //current font size in user unit
var $DrawColor;          //commands for drawing color
var $FillColor;          //commands for filling color
var $TextColor;          //commands for text color
var $ColorFlag;          //indicates whether fill and text colors are different
var $ws;                 //word spacing
var $images;             //array of used images
var $PageLinks;          //array of links in pages
var $links;              //array of internal links
var $AutoPageBreak;      //automatic page breaking
var $PageBreakTrigger;   //threshold used to trigger page breaks
var $InHeader;           //flag set when processing header
var $InFooter;           //flag set when processing footer
var $ZoomMode;           //zoom display mode
var $LayoutMode;         //layout display mode
var $title;              //title
var $subject;            //subject
var $author;             //author
var $keywords;           //keywords
var $creator;            //creator
var $AliasNbPages;       //alias for total number of pages
var $PDFVersion;         //PDF version number

/*******************************************************************************
*                                                                              *
*                               Public methods                                 *
*                                                                              *
*******************************************************************************/
function FPDF($orientation='P', $unit='mm', $format='A4')
{
    //Some checks
    $this->_dochecks();
    //Initialization of properties
    $this->page=0;
    $this->n=2;
    $this->buffer='';
    $this->pages=array();
    $this->PageSizes=array();
    $this->state=0;
    $this->fonts=array();
    $this->FontFiles=array();
    $this->diffs=array();
    $this->images=array();
    $this->links=array();
    $this->InHeader=false;
    $this->InFooter=false;
    $this->lasth=0;
    $this->FontFamily='';
    $this->FontStyle='';
    $this->FontSizePt=12;
    $this->underline=false;
    $this->DrawColor='0 G';
    $this->FillColor='0 g';
    $this->TextColor='0 g';
    $this->ColorFlag=false;
    $this->ws=0;
    //Standard fonts
    $this->CoreFonts=array('courier'=>'Courier', 'courierB'=>'Courier-Bold', 'courierI'=>'Courier-Oblique', 'courierBI'=>'Courier-BoldOblique',
        'helvetica'=>'Helvetica', 'helveticaB'=>'Helvetica-Bold', 'helveticaI'=>'Helvetica-Oblique', 'helveticaBI'=>'Helvetica-BoldOblique',
        'times'=>'Times-Roman', 'timesB'=>'Times-Bold', 'timesI'=>'Times-Italic', 'timesBI'=>'Times-BoldItalic',
        'symbol'=>'Symbol', 'zapfdingbats'=>'ZapfDingbats');
    //Scale factor
    if($unit=='pt')
        $this->k=1;
    elseif($unit=='mm')
        $this->k=72/25.4;
    elseif($unit=='cm')
        $this->k=72/2.54;
    elseif($unit=='in')
        $this->k=72;
    else
        $this->Error('Incorrect unit: '.$unit);
    //Page format
    $this->PageFormats=array('a3'=>array(841.89,1190.55), 'a4'=>array(595.28,841.89), 'a5'=>array(420.94,595.28),
        'letter'=>array(612,792), 'legal'=>array(612,1008));
    if(is_string($format))
        $format=$this->_getpageformat($format);
    $this->DefPageFormat=$format;
    $this->CurPageFormat=$format;
    //Page orientation
    $orientation=strtolower($orientation);
    if($orientation=='p' || $orientation=='portrait')
    {
        $this->DefOrientation='P';
        $this->w=$this->DefPageFormat[0];
        $this->h=$this->DefPageFormat[1];
    }
    elseif($orientation=='l' || $orientation=='landscape')
    {
        $this->DefOrientation='L';
        $this->w=$this->DefPageFormat[1];
        $this->h=$this->DefPageFormat[0];
    }
    else
        $this->Error('Incorrect orientation: '.$orientation);
    $this->CurOrientation=$this->DefOrientation;
    $this->wPt=$this->w*$this->k;
    $this->hPt=$this->h*$this->k;
    //Page margins (1 cm)
    $margin=28.35/$this->k;
    $this->SetMargins($margin,$margin);
    //Interior cell margin (1 mm)
    $this->cMargin=$margin/10;
    //Line width (0.2 mm)
    $this->LineWidth=.567/$this->k;
    //Automatic page break
    $this->SetAutoPageBreak(true,2*$margin);
    //Full width display mode
    $this->SetDisplayMode('fullwidth');
    //Enable compression
    $this->SetCompression(true);
    //Set default PDF version number
    $this->PDFVersion='1.3';
}

function SetMargins($left, $top, $right=null)
{
    //Set left, top and right margins
    $this->lMargin=$left;
    $this->tMargin=$top;
    if($right===null)
        $right=$left;
    $this->rMargin=$right;
}

function SetLeftMargin($margin)
{
    //Set left margin
    $this->lMargin=$margin;
    if($this->page>0 && $this->x<$margin)
        $this->x=$margin;
}

function SetTopMargin($margin)
{
    //Set top margin
    $this->tMargin=$margin;
}

function SetRightMargin($margin)
{
    //Set right margin
    $this->rMargin=$margin;
}

function SetAutoPageBreak($auto, $margin=0)
{
    //Set auto page break mode and triggering margin
    $this->AutoPageBreak=$auto;
    $this->bMargin=$margin;
    $this->PageBreakTrigger=$this->h-$margin;
}

function SetDisplayMode($zoom, $layout='continuous')
{
    //Set display mode in viewer
    if($zoom=='fullpage' || $zoom=='fullwidth' || $zoom=='real' || $zoom=='default' || !is_string($zoom))
        $this->ZoomMode=$zoom;
    else
        $this->Error('Incorrect zoom display mode: '.$zoom);
    if($layout=='single' || $layout=='continuous' || $layout=='two' || $layout=='default')
        $this->LayoutMode=$layout;
    else
        $this->Error('Incorrect layout display mode: '.$layout);
}

function SetCompression($compress)
{
    //Set page compression
    if(function_exists('gzcompress'))
        $this->compress=$compress;
    else
        $this->compress=false;
}

function SetTitle($title, $isUTF8=false)
{
    //Title of document
    if($isUTF8)
        $title=$this->_UTF8toUTF16($title);
    $this->title=$title;
}

function SetSubject($subject, $isUTF8=false)
{
    //Subject of document
    if($isUTF8)
        $subject=$this->_UTF8toUTF16($subject);
    $this->subject=$subject;
}

function SetAuthor($author, $isUTF8=false)
{
    //Author of document
    if($isUTF8)
        $author=$this->_UTF8toUTF16($author);
    $this->author=$author;
}

function SetKeywords($keywords, $isUTF8=false)
{
    //Keywords of document
    if($isUTF8)
        $keywords=$this->_UTF8toUTF16($keywords);
    $this->keywords=$keywords;
}

function SetCreator($creator, $isUTF8=false)
{
    //Creator of document
    if($isUTF8)
        $creator=$this->_UTF8toUTF16($creator);
    $this->creator=$creator;
}

function AliasNbPages($alias='{nb}')
{
    //Define an alias for total number of pages
    $this->AliasNbPages=$alias;
}

function Error($msg)
{
    //Fatal error
    die('<b>FPDF error:</b> '.$msg);
}

function Open()
{
    //Begin document
    $this->state=1;
}

function Close()
{
    //Terminate document
    if($this->state==3)
        return;
    if($this->page==0)
        $this->AddPage();
    //Page footer
    $this->InFooter=true;
    $this->Footer();
    $this->InFooter=false;
    //Close page
    $this->_endpage();
    //Close document
    $this->_enddoc();
}

function AddPage($orientation='', $format='')
{
    //Start a new page
    if($this->state==0)
        $this->Open();
    $family=$this->FontFamily;
    $style=$this->FontStyle.($this->underline ? 'U' : '');
    $size=$this->FontSizePt;
    $lw=$this->LineWidth;
    $dc=$this->DrawColor;
    $fc=$this->FillColor;
    $tc=$this->TextColor;
    $cf=$this->ColorFlag;
    if($this->page>0)
    {
        //Page footer
        $this->InFooter=true;
        $this->Footer();
        $this->InFooter=false;
        //Close page
        $this->_endpage();
    }
    //Start new page
    $this->_beginpage($orientation,$format);
    //Set line cap style to square
    $this->_out('2 J');
    //Set line width
    $this->LineWidth=$lw;
    $this->_out(sprintf('%.2F w',$lw*$this->k));
    //Set font
    if($family)
        $this->SetFont($family,$style,$size);
    //Set colors
    $this->DrawColor=$dc;
    if($dc!='0 G')
        $this->_out($dc);
    $this->FillColor=$fc;
    if($fc!='0 g')
        $this->_out($fc);
    $this->TextColor=$tc;
    $this->ColorFlag=$cf;
    //Page header
    $this->InHeader=true;
    $this->Header();
    $this->InHeader=false;
    //Restore line width
    if($this->LineWidth!=$lw)
    {
        $this->LineWidth=$lw;
        $this->_out(sprintf('%.2F w',$lw*$this->k));
    }
    //Restore font
    if($family)
        $this->SetFont($family,$style,$size);
    //Restore colors
    if($this->DrawColor!=$dc)
    {
        $this->DrawColor=$dc;
        $this->_out($dc);
    }
    if($this->FillColor!=$fc)
    {
        $this->FillColor=$fc;
        $this->_out($fc);
    }
    $this->TextColor=$tc;
    $this->ColorFlag=$cf;
}

function Header()
{
    //To be implemented in your own inherited class
}

function Footer()
{
    //To be implemented in your own inherited class
}

function PageNo()
{
    //Get current page number
    return $this->page;
}

function SetDrawColor($r, $g=null, $b=null)
{
    //Set color for all stroking operations
    if(($r==0 && $g==0 && $b==0) || $g===null)
        $this->DrawColor=sprintf('%.3F G',$r/255);
    else
        $this->DrawColor=sprintf('%.3F %.3F %.3F RG',$r/255,$g/255,$b/255);
    if($this->page>0)
        $this->_out($this->DrawColor);
}

function SetFillColor($r, $g=null, $b=null)
{
    //Set color for all filling operations
    if(($r==0 && $g==0 && $b==0) || $g===null)
        $this->FillColor=sprintf('%.3F g',$r/255);
    else
        $this->FillColor=sprintf('%.3F %.3F %.3F rg',$r/255,$g/255,$b/255);
    $this->ColorFlag=($this->FillColor!=$this->TextColor);
    if($this->page>0)
        $this->_out($this->FillColor);
}

function SetTextColor($r, $g=null, $b=null)
{
    //Set color for text
    if(($r==0 && $g==0 && $b==0) || $g===null)
        $this->TextColor=sprintf('%.3F g',$r/255);
    else
        $this->TextColor=sprintf('%.3F %.3F %.3F rg',$r/255,$g/255,$b/255);
    $this->ColorFlag=($this->FillColor!=$this->TextColor);
}

function GetStringWidth($s)
{
    //Get width of a string in the current font
    $s=(string)$s;
    $cw=&$this->CurrentFont['cw'];
    $w=0;
    $l=strlen($s);
    for($i=0;$i<$l;$i++)
        $w+=$cw[$s[$i]];
    return $w*$this->FontSize/1000;
}

function SetLineWidth($width)
{
    //Set line width
    $this->LineWidth=$width;
    if($this->page>0)
        $this->_out(sprintf('%.2F w',$width*$this->k));
}

function Line($x1, $y1, $x2, $y2)
{
    //Draw a line
    $this->_out(sprintf('%.2F %.2F m %.2F %.2F l S',$x1*$this->k,($this->h-$y1)*$this->k,$x2*$this->k,($this->h-$y2)*$this->k));
}

function Rect($x, $y, $w, $h, $style='')
{
    //Draw a rectangle
    if($style=='F')
        $op='f';
    elseif($style=='FD' || $style=='DF')
        $op='B';
    else
        $op='S';
    $this->_out(sprintf('%.2F %.2F %.2F %.2F re %s',$x*$this->k,($this->h-$y)*$this->k,$w*$this->k,-$h*$this->k,$op));
}

function AddFont($family, $style='', $file='')
{
    //Add a TrueType or Type1 font
    $family=strtolower($family);
    if($file=='')
        $file=str_replace(' ','',$family).strtolower($style).'.php';
    if($family=='arial')
        $family='helvetica';
    $style=strtoupper($style);
    if($style=='IB')
        $style='BI';
    $fontkey=$family.$style;
    if(isset($this->fonts[$fontkey]))
        return;
    include($this->_getfontpath().$file);
    if(!isset($name))
        $this->Error('Could not include font definition file');
    $i=count($this->fonts)+1;
    $this->fonts[$fontkey]=array('i'=>$i, 'type'=>$type, 'name'=>$name, 'desc'=>$desc, 'up'=>$up, 'ut'=>$ut, 'cw'=>$cw, 'enc'=>$enc, 'file'=>$file);
    if($diff)
    {
        //Search existing encodings
        $d=0;
        $nb=count($this->diffs);
        for($i=1;$i<=$nb;$i++)
        {
            if($this->diffs[$i]==$diff)
            {
                $d=$i;
                break;
            }
        }
        if($d==0)
        {
            $d=$nb+1;
            $this->diffs[$d]=$diff;
        }
        $this->fonts[$fontkey]['diff']=$d;
    }
    if($file)
    {
        if($type=='TrueType')
            $this->FontFiles[$file]=array('length1'=>$originalsize);
        else
            $this->FontFiles[$file]=array('length1'=>$size1, 'length2'=>$size2);
    }
}

function SetFont($family, $style='', $size=0)
{
    //Select a font; size given in points
    global $fpdf_charwidths;

    $family=strtolower($family);
    if($family=='')
        $family=$this->FontFamily;
    if($family=='arial')
        $family='helvetica';
    elseif($family=='symbol' || $family=='zapfdingbats')
        $style='';
    $style=strtoupper($style);
    if(strpos($style,'U')!==false)
    {
        $this->underline=true;
        $style=str_replace('U','',$style);
    }
    else
        $this->underline=false;
    if($style=='IB')
        $style='BI';
    if($size==0)
        $size=$this->FontSizePt;
    //Test if font is already selected
    if($this->FontFamily==$family && $this->FontStyle==$style && $this->FontSizePt==$size)
        return;
    //Test if used for the first time
    $fontkey=$family.$style;
    if(!isset($this->fonts[$fontkey]))
    {
        //Check if one of the standard fonts
        if(isset($this->CoreFonts[$fontkey]))
        {
            if(!isset($fpdf_charwidths[$fontkey]))
            {
                //Load metric file
                $file=$family;
                if($family=='times' || $family=='helvetica')
                    $file.=strtolower($style);
                include($this->_getfontpath().$file.'.php');
                if(!isset($fpdf_charwidths[$fontkey]))
                    $this->Error('Could not include font metric file');
            }
            $i=count($this->fonts)+1;
            $name=$this->CoreFonts[$fontkey];
            $cw=$fpdf_charwidths[$fontkey];
            $this->fonts[$fontkey]=array('i'=>$i, 'type'=>'core', 'name'=>$name, 'up'=>-100, 'ut'=>50, 'cw'=>$cw);
        }
        else
            $this->Error('Undefined font: '.$family.' '.$style);
    }
    //Select it
    $this->FontFamily=$family;
    $this->FontStyle=$style;
    $this->FontSizePt=$size;
    $this->FontSize=$size/$this->k;
    $this->CurrentFont=&$this->fonts[$fontkey];
    if($this->page>0)
        $this->_out(sprintf('BT /F%d %.2F Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
}

function SetFontSize($size)
{
    //Set font size in points
    if($this->FontSizePt==$size)
        return;
    $this->FontSizePt=$size;
    $this->FontSize=$size/$this->k;
    if($this->page>0)
        $this->_out(sprintf('BT /F%d %.2F Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
}

function AddLink()
{
    //Create a new internal link
    $n=count($this->links)+1;
    $this->links[$n]=array(0, 0);
    return $n;
}

function SetLink($link, $y=0, $page=-1)
{
    //Set destination of internal link
    if($y==-1)
        $y=$this->y;
    if($page==-1)
        $page=$this->page;
    $this->links[$link]=array($page, $y);
}

function Link($x, $y, $w, $h, $link)
{
    //Put a link on the page
    $this->PageLinks[$this->page][]=array($x*$this->k, $this->hPt-$y*$this->k, $w*$this->k, $h*$this->k, $link);
}

function Text($x, $y, $txt)
{
    //Output a string
    $s=sprintf('BT %.2F %.2F Td (%s) Tj ET',$x*$this->k,($this->h-$y)*$this->k,$this->_escape($txt));
    if($this->underline && $txt!='')
        $s.=' '.$this->_dounderline($x,$y,$txt);
    if($this->ColorFlag)
        $s='q '.$this->TextColor.' '.$s.' Q';
    $this->_out($s);
}

function AcceptPageBreak()
{
    //Accept automatic page break or not
    return $this->AutoPageBreak;
}

function Cell($w, $h=0, $txt='', $border=0, $ln=0, $align='', $fill=false, $link='')
{
    //Output a cell
    $k=$this->k;
    if($this->y+$h>$this->PageBreakTrigger && !$this->InHeader && !$this->InFooter && $this->AcceptPageBreak())
    {
        //Automatic page break
        $x=$this->x;
        $ws=$this->ws;
        if($ws>0)
        {
            $this->ws=0;
            $this->_out('0 Tw');
        }
        $this->AddPage($this->CurOrientation,$this->CurPageFormat);
        $this->x=$x;
        if($ws>0)
        {
            $this->ws=$ws;
            $this->_out(sprintf('%.3F Tw',$ws*$k));
        }
    }
    if($w==0)
        $w=$this->w-$this->rMargin-$this->x;
    $s='';
    if($fill || $border==1)
    {
        if($fill)
            $op=($border==1) ? 'B' : 'f';
        else
            $op='S';
        $s=sprintf('%.2F %.2F %.2F %.2F re %s ',$this->x*$k,($this->h-$this->y)*$k,$w*$k,-$h*$k,$op);
    }
    if(is_string($border))
    {
        $x=$this->x;
        $y=$this->y;
        if(strpos($border,'L')!==false)
            $s.=sprintf('%.2F %.2F m %.2F %.2F l S ',$x*$k,($this->h-$y)*$k,$x*$k,($this->h-($y+$h))*$k);
        if(strpos($border,'T')!==false)
            $s.=sprintf('%.2F %.2F m %.2F %.2F l S ',$x*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-$y)*$k);
        if(strpos($border,'R')!==false)
            $s.=sprintf('%.2F %.2F m %.2F %.2F l S ',($x+$w)*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
        if(strpos($border,'B')!==false)
            $s.=sprintf('%.2F %.2F m %.2F %.2F l S ',$x*$k,($this->h-($y+$h))*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
    }
    if($txt!=='')
    {
        if($align=='R')
            $dx=$w-$this->cMargin-$this->GetStringWidth($txt);
        elseif($align=='C')
            $dx=($w-$this->GetStringWidth($txt))/2;
        else
            $dx=$this->cMargin;
        if($this->ColorFlag)
            $s.='q '.$this->TextColor.' ';
        $txt2=str_replace(')','\\)',str_replace('(','\\(',str_replace('\\','\\\\',$txt)));
        $s.=sprintf('BT %.2F %.2F Td (%s) Tj ET',($this->x+$dx)*$k,($this->h-($this->y+.5*$h+.3*$this->FontSize))*$k,$txt2);
        if($this->underline)
            $s.=' '.$this->_dounderline($this->x+$dx,$this->y+.5*$h+.3*$this->FontSize,$txt);
        if($this->ColorFlag)
            $s.=' Q';
        if($link)
            $this->Link($this->x+$dx,$this->y+.5*$h-.5*$this->FontSize,$this->GetStringWidth($txt),$this->FontSize,$link);
    }
    if($s)
        $this->_out($s);
    $this->lasth=$h;
    if($ln>0)
    {
        //Go to next line
        $this->y+=$h;
        if($ln==1)
            $this->x=$this->lMargin;
    }
    else
        $this->x+=$w;
}

function MultiCell($w, $h, $txt, $border=0, $align='J', $fill=false)
{
    //Output text with automatic or explicit line breaks
    $cw=&$this->CurrentFont['cw'];
    if($w==0)
        $w=$this->w-$this->rMargin-$this->x;
    $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
    $s=str_replace("\r",'',$txt);
    $nb=strlen($s);
    if($nb>0 && $s[$nb-1]=="\n")
        $nb--;
    $b=0;
    if($border)
    {
        if($border==1)
        {
            $border='LTRB';
            $b='LRT';
            $b2='LR';
        }
        else
        {
            $b2='';
            if(strpos($border,'L')!==false)
                $b2.='L';
            if(strpos($border,'R')!==false)
                $b2.='R';
            $b=(strpos($border,'T')!==false) ? $b2.'T' : $b2;
        }
    }
    $sep=-1;
    $i=0;
    $j=0;
    $l=0;
    $ns=0;
    $nl=1;
    while($i<$nb)
    {
        //Get next character
        $c=$s[$i];
        if($c=="\n")
        {
            //Explicit line break
            if($this->ws>0)
            {
                $this->ws=0;
                $this->_out('0 Tw');
            }
            $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
            $i++;
            $sep=-1;
            $j=$i;
            $l=0;
            $ns=0;
            $nl++;
            if($border && $nl==2)
                $b=$b2;
            continue;
        }
        if($c==' ')
        {
            $sep=$i;
            $ls=$l;
            $ns++;
        }
        $l+=$cw[$c];
        if($l>$wmax)
        {
            //Automatic line break
            if($sep==-1)
            {
                if($i==$j)
                    $i++;
                if($this->ws>0)
                {
                    $this->ws=0;
                    $this->_out('0 Tw');
                }
                $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
            }
            else
            {
                if($align=='J')
                {
                    $this->ws=($ns>1) ? ($wmax-$ls)/1000*$this->FontSize/($ns-1) : 0;
                    $this->_out(sprintf('%.3F Tw',$this->ws*$this->k));
                }
                $this->Cell($w,$h,substr($s,$j,$sep-$j),$b,2,$align,$fill);
                $i=$sep+1;
            }
            $sep=-1;
            $j=$i;
            $l=0;
            $ns=0;
            $nl++;
            if($border && $nl==2)
                $b=$b2;
        }
        else
            $i++;
    }
    //Last chunk
    if($this->ws>0)
    {
        $this->ws=0;
        $this->_out('0 Tw');
    }
    if($border && strpos($border,'B')!==false)
        $b.='B';
    $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
    $this->x=$this->lMargin;
}

function Write($h, $txt, $link='')
{
    //Output text in flowing mode
    $cw=&$this->CurrentFont['cw'];
    $w=$this->w-$this->rMargin-$this->x;
    $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
    $s=str_replace("\r",'',$txt);
    $nb=strlen($s);
    $sep=-1;
    $i=0;
    $j=0;
    $l=0;
    $nl=1;
    while($i<$nb)
    {
        //Get next character
        $c=$s[$i];
        if($c=="\n")
        {
            //Explicit line break
            $this->Cell($w,$h,substr($s,$j,$i-$j),0,2,'',0,$link);
            $i++;
            $sep=-1;
            $j=$i;
            $l=0;
            if($nl==1)
            {
                $this->x=$this->lMargin;
                $w=$this->w-$this->rMargin-$this->x;
                $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
            }
            $nl++;
            continue;
        }
        if($c==' ')
            $sep=$i;
        $l+=$cw[$c];
        if($l>$wmax)
        {
            //Automatic line break
            if($sep==-1)
            {
                if($this->x>$this->lMargin)
                {
                    //Move to next line
                    $this->x=$this->lMargin;
                    $this->y+=$h;
                    $w=$this->w-$this->rMargin-$this->x;
                    $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
                    $i++;
                    $nl++;
                    continue;
                }
                if($i==$j)
                    $i++;
                $this->Cell($w,$h,substr($s,$j,$i-$j),0,2,'',0,$link);
            }
            else
            {
                $this->Cell($w,$h,substr($s,$j,$sep-$j),0,2,'',0,$link);
                $i=$sep+1;
            }
            $sep=-1;
            $j=$i;
            $l=0;
            if($nl==1)
            {
                $this->x=$this->lMargin;
                $w=$this->w-$this->rMargin-$this->x;
                $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
            }
            $nl++;
        }
        else
            $i++;
    }
    //Last chunk
    if($i!=$j)
        $this->Cell($l/1000*$this->FontSize,$h,substr($s,$j),0,0,'',0,$link);
}

function Ln($h=null)
{
    //Line feed; default value is last cell height
    $this->x=$this->lMargin;
    if($h===null)
        $this->y+=$this->lasth;
    else
        $this->y+=$h;
}

function Image($file, $x=null, $y=null, $w=0, $h=0, $type='', $link='')
{
    //Put an image on the page
    if(!isset($this->images[$file]))
    {
        //First use of this image, get info
        if($type=='')
        {
            $pos=strrpos($file,'.');
            if(!$pos)
                $this->Error('Image file has no extension and no type was specified: '.$file);
            $type=substr($file,$pos+1);
        }
        $type=strtolower($type);
        if($type=='jpeg')
            $type='jpg';
        $mtd='_parse'.$type;
        if(!method_exists($this,$mtd))
            $this->Error('Unsupported image type: '.$type);
        $info=$this->$mtd($file);
        $info['i']=count($this->images)+1;
        $this->images[$file]=$info;
    }
    else
        $info=$this->images[$file];
    //Automatic width and height calculation if needed
    if($w==0 && $h==0)
    {
        //Put image at 72 dpi
        $w=$info['w']/$this->k;
        $h=$info['h']/$this->k;
    }
    elseif($w==0)
        $w=$h*$info['w']/$info['h'];
    elseif($h==0)
        $h=$w*$info['h']/$info['w'];
    //Flowing mode
    if($y===null)
    {
        if($this->y+$h>$this->PageBreakTrigger && !$this->InHeader && !$this->InFooter && $this->AcceptPageBreak())
        {
            //Automatic page break
            $x2=$this->x;
            $this->AddPage($this->CurOrientation,$this->CurPageFormat);
            $this->x=$x2;
        }
        $y=$this->y;
        $this->y+=$h;
    }
    if($x===null)
        $x=$this->x;
    $this->_out(sprintf('q %.2F 0 0 %.2F %.2F %.2F cm /I%d Do Q',$w*$this->k,$h*$this->k,$x*$this->k,($this->h-($y+$h))*$this->k,$info['i']));
    if($link)
        $this->Link($x,$y,$w,$h,$link);
}

function GetX()
{
    //Get x position
    return $this->x;
}

function SetX($x)
{
    //Set x position
    if($x>=0)
        $this->x=$x;
    else
        $this->x=$this->w+$x;
}

function GetY()
{
    //Get y position
    return $this->y;
}

function SetY($y)
{
    //Set y position and reset x
    $this->x=$this->lMargin;
    if($y>=0)
        $this->y=$y;
    else
        $this->y=$this->h+$y;
}

function SetXY($x, $y)
{
    //Set x and y positions
    $this->SetY($y);
    $this->SetX($x);
}

function Output($name='', $dest='')
{
    //Output PDF to some destination
    if($this->state<3)
        $this->Close();
    $dest=strtoupper($dest);
    if($dest=='')
    {
        if($name=='')
        {
            $name='doc.pdf';
            $dest='I';
        }
        else
            $dest='F';
    }
    switch($dest)
    {
        case 'I':
            //Send to standard output
            if(ob_get_length())
                $this->Error('Some data has already been output, can\'t send PDF file');
            if(php_sapi_name()!='cli')
            {
                //We send to a browser
                header('Content-Type: application/pdf');
                if(headers_sent())
                    $this->Error('Some data has already been output, can\'t send PDF file');
                header('Content-Length: '.strlen($this->buffer));
                header('Content-Disposition: inline; filename="'.$name.'"');
                header('Cache-Control: private, max-age=0, must-revalidate');
                header('Pragma: public');
                ini_set('zlib.output_compression','0');
            }
            echo $this->buffer;
            break;
        case 'D':
            //Download file
            if(ob_get_length())
                $this->Error('Some data has already been output, can\'t send PDF file');
            header('Content-Type: application/x-download');
            if(headers_sent())
                $this->Error('Some data has already been output, can\'t send PDF file');
            header('Content-Length: '.strlen($this->buffer));
            header('Content-Disposition: attachment; filename="'.$name.'"');
            header('Cache-Control: private, max-age=0, must-revalidate');
            header('Pragma: public');
            ini_set('zlib.output_compression','0');
            echo $this->buffer;
            break;
        case 'F':
            //Save to local file
            $f=fopen($name,'wb');
            if(!$f)
                $this->Error('Unable to create output file: '.$name);
            fwrite($f,$this->buffer,strlen($this->buffer));
            fclose($f);
            break;
        case 'S':
            //Return as a string
            return $this->buffer;
        default:
            $this->Error('Incorrect output destination: '.$dest);
    }
    return '';
}

/*******************************************************************************
*                                                                              *
*                              Protected methods                               *
*                                                                              *
*******************************************************************************/
function _dochecks()
{
    //Check availability of %F
    if(sprintf('%.1F',1.0)!='1.0')
        $this->Error('This version of PHP is not supported');
    //Check mbstring overloading
    if(ini_get('mbstring.func_overload') & 2)
        $this->Error('mbstring overloading must be disabled');
    //Disable runtime magic quotes
    if(get_magic_quotes_runtime())
        @set_magic_quotes_runtime(0);
}

function _getpageformat($format)
{
    $format=strtolower($format);
    if(!isset($this->PageFormats[$format]))
        $this->Error('Unknown page format: '.$format);
    $a=$this->PageFormats[$format];
    return array($a[0]/$this->k, $a[1]/$this->k);
}

function _getfontpath()
{
    if(!defined('FPDF_FONTPATH') && is_dir(dirname(__FILE__).'/font'))
        define('FPDF_FONTPATH',dirname(__FILE__).'/font/');
    return defined('FPDF_FONTPATH') ? FPDF_FONTPATH : '';
}

function _beginpage($orientation, $format)
{
    $this->page++;
    $this->pages[$this->page]='';
    $this->state=2;
    $this->x=$this->lMargin;
    $this->y=$this->tMargin;
    $this->FontFamily='';
    //Check page size
    if($orientation=='')
        $orientation=$this->DefOrientation;
    else
        $orientation=strtoupper($orientation[0]);
    if($format=='')
        $format=$this->DefPageFormat;
    else
    {
        if(is_string($format))
            $format=$this->_getpageformat($format);
    }
    if($orientation!=$this->CurOrientation || $format[0]!=$this->CurPageFormat[0] || $format[1]!=$this->CurPageFormat[1])
    {
        //New size
        if($orientation=='P')
        {
            $this->w=$format[0];
            $this->h=$format[1];
        }
        else
        {
            $this->w=$format[1];
            $this->h=$format[0];
        }
        $this->wPt=$this->w*$this->k;
        $this->hPt=$this->h*$this->k;
        $this->PageBreakTrigger=$this->h-$this->bMargin;
        $this->CurOrientation=$orientation;
        $this->CurPageFormat=$format;
    }
    if($orientation!=$this->DefOrientation || $format[0]!=$this->DefPageFormat[0] || $format[1]!=$this->DefPageFormat[1])
        $this->PageSizes[$this->page]=array($this->wPt, $this->hPt);
}

function _endpage()
{
    $this->state=1;
}

function _escape($s)
{
    //Escape special characters in strings
    $s=str_replace('\\','\\\\',$s);
    $s=str_replace('(','\\(',$s);
    $s=str_replace(')','\\)',$s);
    $s=str_replace("\r",'\\r',$s);
    return $s;
}

function _textstring($s)
{
    //Format a text string
    return '('.$this->_escape($s).')';
}

function _UTF8toUTF16($s)
{
    //Convert UTF-8 to UTF-16BE with BOM
    $res="\xFE\xFF";
    $nb=strlen($s);
    $i=0;
    while($i<$nb)
    {
        $c1=ord($s[$i++]);
        if($c1>=224)
        {
            //3-byte character
            $c2=ord($s[$i++]);
            $c3=ord($s[$i++]);
            $res.=chr((($c1 & 0x0F)<<4) + (($c2 & 0x3C)>>2));
            $res.=chr((($c2 & 0x03)<<6) + ($c3 & 0x3F));
        }
        elseif($c1>=192)
        {
            //2-byte character
            $c2=ord($s[$i++]);
            $res.=chr(($c1 & 0x1C)>>2);
            $res.=chr((($c1 & 0x03)<<6) + ($c2 & 0x3F));
        }
        else
        {
            //Single-byte character
            $res.="".chr($c1);
        }
    }
    return $res;
}

function _dounderline($x, $y, $txt)
{
    //Underline text
    $up=$this->CurrentFont['up'];
    $ut=$this->CurrentFont['ut'];
    $w=$this->GetStringWidth($txt)+$this->ws*substr_count($txt,' ');
    return sprintf('%.2F %.2F %.2F %.2F re f',$x*$this->k,($this->h-($y-$up/1000*$this->FontSize))*$this->k,$w*$this->k,-$ut/1000*$this->FontSizePt);
}

function _parsejpg($file)
{
    //Extract info from a JPEG file
    $a=GetImageSize($file);
    if(!$a)
        $this->Error('Missing or incorrect image file: '.$file);
    if($a[2]!=2)
        $this->Error('Not a JPEG file: '.$file);
    if(!isset($a['channels']) || $a['channels']==3)
        $colspace='DeviceRGB';
    elseif($a['channels']==4)
        $colspace='DeviceCMYK';
    else
        $colspace='DeviceGray';
    $bpc=isset($a['bits']) ? $a['bits'] : 8;
    //Read whole file
    $f=fopen($file,'rb');
    $data='';
    while(!feof($f))
        $data.=fread($f,8192);
    fclose($f);
    return array('w'=>$a[0], 'h'=>$a[1], 'cs'=>$colspace, 'bpc'=>$bpc, 'f'=>'DCTDecode', 'data'=>$data);
}

function _parsepng($file)
{
    //Extract info from a PNG file
    $f=fopen($file,'rb');
    if(!$f)
        $this->Error('Can\'t open image file: '.$file);
    //Check signature
    if($this->_readstream($f,8)!=chr(137).'PNG'.chr(13).chr(10).chr(26).chr(10))
        $this->Error('Not a PNG file: '.$file);
    //Read header chunk
    $this->_readstream($f,4);
    if($this->_readstream($f,4)!='IHDR')
        $this->Error('Incorrect PNG file: '.$file);
    $w=$this->_readint($f);
    $h=$this->_readint($f);
    $bpc=ord($this->_readstream($f,1));
    if($bpc>8)
        $this->Error('16-bit depth not supported: '.$file);
    $ct=ord($this->_readstream($f,1));
    if($ct==0)
        $colspace='DeviceGray';
    elseif($ct==2)
        $colspace='DeviceRGB';
    elseif($ct==3)
        $colspace='Indexed';
    else
        $this->Error('Alpha channel not supported: '.$file);
    if(ord($this->_readstream($f,1))!=0)
        $this->Error('Unknown compression method: '.$file);
    if(ord($this->_readstream($f,1))!=0)
        $this->Error('Unknown filter method: '.$file);
    if(ord($this->_readstream($f,1))!=0)
        $this->Error('Interlacing not supported: '.$file);
    $this->_readstream($f,4);
    $parms='/DecodeParms <</Predictor 15 /Colors '.($ct==2 ? 3 : 1).' /BitsPerComponent '.$bpc.' /Columns '.$w.'>>';
    //Scan chunks looking for palette, transparency and image data
    $pal='';
    $trns='';
    $data='';
    do
    {
        $n=$this->_readint($f);
        $type=$this->_readstream($f,4);
        if($type=='PLTE')
        {
            //Read palette
            $pal=$this->_readstream($f,$n);
            $this->_readstream($f,4);
        }
        elseif($type=='tRNS')
        {
            //Read transparency info
            $t=$this->_readstream($f,$n);
            if($ct==0)
                $trns=array(ord(substr($t,1,1)));
            elseif($ct==2)
                $trns=array(ord(substr($t,1,1)), ord(substr($t,3,1)), ord(substr($t,5,1)));
            else
            {
                $pos=strpos($t,chr(0));
                if($pos!==false)
                    $trns=array($pos);
            }
            $this->_readstream($f,4);
        }
        elseif($type=='IDAT')
        {
            //Read image data block
            $data.=$this->_readstream($f,$n);
            $this->_readstream($f,4);
        }
        elseif($type=='IEND')
            break;
        else
            $this->_readstream($f,$n+4);
    }
    while($n);
    if($colspace=='Indexed' && empty($pal))
        $this->Error('Missing palette in '.$file);
    fclose($f);
    return array('w'=>$w, 'h'=>$h, 'cs'=>$colspace, 'bpc'=>$bpc, 'f'=>'FlateDecode', 'parms'=>$parms, 'pal'=>$pal, 'trns'=>$trns, 'data'=>$data);
}

function _readstream($f, $n)
{
    //Read n bytes from stream
    $res='';
    while($n>0 && !feof($f))
    {
        $s=fread($f,$n);
        if($s===false)
            $this->Error('Error while reading stream');
        $n-=strlen($s);
        $res.=$s;
    }
    if($n>0)
        $this->Error('Unexpected end of stream');
    return $res;
}

function _readint($f)
{
    //Read a 4-byte integer from stream
    $a=unpack('Ni',$this->_readstream($f,4));
    return $a['i'];
}

function _parsegif($file)
{
    //Extract info from a GIF file (via PNG conversion)
    if(!function_exists('imagepng'))
        $this->Error('GD extension is required for GIF support');
    if(!function_exists('imagecreatefromgif'))
        $this->Error('GD has no GIF read support');
    $im=imagecreatefromgif($file);
    if(!$im)
        $this->Error('Missing or incorrect image file: '.$file);
    imageinterlace($im,0);
    $tmp=tempnam('.','gif');
    if(!$tmp)
        $this->Error('Unable to create a temporary file');
    if(!imagepng($im,$tmp))
        $this->Error('Error while saving to temporary file');
    imagedestroy($im);
    $info=$this->_parsepng($tmp);
    unlink($tmp);
    return $info;
}

function _newobj()
{
    //Begin a new object
    $this->n++;
    $this->offsets[$this->n]=strlen($this->buffer);
    $this->_out($this->n.' 0 obj');
}

function _putstream($s)
{
    $this->_out('stream');
    $this->_out($s);
    $this->_out('endstream');
}

function _out($s)
{
    //Add a line to the document
    if($this->state==2)
        $this->pages[$this->page].=$s."\n";
    else
        $this->buffer.=$s."\n";
}

function _putpages()
{
    $nb=$this->page;
    if(!empty($this->AliasNbPages))
    {
        //Replace number of pages
        for($n=1;$n<=$nb;$n++)
            $this->pages[$n]=str_replace($this->AliasNbPages,$nb,$this->pages[$n]);
    }
    if($this->DefOrientation=='P')
    {
        $wPt=$this->DefPageFormat[0]*$this->k;
        $hPt=$this->DefPageFormat[1]*$this->k;
    }
    else
    {
        $wPt=$this->DefPageFormat[1]*$this->k;
        $hPt=$this->DefPageFormat[0]*$this->k;
    }
    $filter=($this->compress) ? '/Filter /FlateDecode ' : '';
    for($n=1;$n<=$nb;$n++)
    {
        //Page
        $this->_newobj();
        $this->_out('<</Type /Page');
        $this->_out('/Parent 1 0 R');
        if(isset($this->PageSizes[$n]))
            $this->_out(sprintf('/MediaBox [0 0 %.2F %.2F]',$this->PageSizes[$n][0],$this->PageSizes[$n][1]));
        $this->_out('/Resources 2 0 R');
        if(isset($this->PageLinks[$n]))
        {
            //Links
            $annots='/Annots [';
            foreach($this->PageLinks[$n] as $pl)
            {
                $rect=sprintf('%.2F %.2F %.2F %.2F',$pl[0],$pl[1],$pl[0]+$pl[2],$pl[1]-$pl[3]);
                $annots.='<</Type /Annot /Subtype /Link /Rect ['.$rect.'] /Border [0 0 0] ';
                if(is_string($pl[4]))
                    $annots.='/A <</S /URI /URI '.$this->_textstring($pl[4]).'>>>>';
                else
                {
                    $l=$this->links[$pl[4]];
                    $h=isset($this->PageSizes[$l[0]]) ? $this->PageSizes[$l[0]][1] : $hPt;
                    $annots.=sprintf('/Dest [%d 0 R /XYZ 0 %.2F null]>>',1+2*$l[0],$h-$l[1]*$this->k);
                }
            }
            $this->_out($annots.']');
        }
        $this->_out('/Contents '.($this->n+1).' 0 R>>');
        $this->_out('endobj');
        //Page content
        $p=($this->compress) ? gzcompress($this->pages[$n]) : $this->pages[$n];
        $this->_newobj();
        $this->_out('<<'.$filter.'/Length '.strlen($p).'>>');
        $this->_putstream($p);
        $this->_out('endobj');
    }
    //Pages root
    $this->offsets[1]=strlen($this->buffer);
    $this->_out('1 0 obj');
    $this->_out('<</Type /Pages');
    $kids='/Kids [';
    for($i=0;$i<$nb;$i++)
        $kids.=(3+2*$i).' 0 R ';
    $this->_out($kids.']');
    $this->_out('/Count '.$nb);
    $this->_out(sprintf('/MediaBox [0 0 %.2F %.2F]',$wPt,$hPt));
    $this->_out('>>');
    $this->_out('endobj');
}

function _putfonts()
{
    $nf=$this->n;
    foreach($this->diffs as $diff)
    {
        //Encodings
        $this->_newobj();
        $this->_out('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences ['.$diff.']>>');
        $this->_out('endobj');
    }
    foreach($this->FontFiles as $file=>$info)
    {
        //Font file embedding
        $this->_newobj();
        $this->FontFiles[$file]['n']=$this->n;
        $font='';
        $f=fopen($this->_getfontpath().$file,'rb',1);
        if(!$f)
            $this->Error('Font file not found');
        while(!feof($f))
            $font.=fread($f,8192);
        fclose($f);
        $compressed=(substr($file,-2)=='.z');
        if(!$compressed && isset($info['length2']))
        {
            $header=(ord($font[0])==128);
            if($header)
            {
                //Strip first binary header
                $font=substr($font,6);
            }
            if($header && ord($font[$info['length1']])==128)
            {
                //Strip second binary header
                $font=substr($font,0,$info['length1']).substr($font,$info['length1']+6);
            }
        }
        $this->_out('<</Length '.strlen($font));
        if($compressed)
            $this->_out('/Filter /FlateDecode');
        $this->_out('/Length1 '.$info['length1']);
        if(isset($info['length2']))
            $this->_out('/Length2 '.$info['length2'].' /Length3 0');
        $this->_out('>>');
        $this->_putstream($font);
        $this->_out('endobj');
    }
    foreach($this->fonts as $k=>$font)
    {
        //Font objects
        $this->fonts[$k]['n']=$this->n+1;
        $type=$font['type'];
        $name=$font['name'];
        if($type=='core')
        {
            //Standard font
            $this->_newobj();
            $this->_out('<</Type /Font');
            $this->_out('/BaseFont /'.$name);
            $this->_out('/Subtype /Type1');
            if($name!='Symbol' && $name!='ZapfDingbats')
                $this->_out('/Encoding /WinAnsiEncoding');
            $this->_out('>>');
            $this->_out('endobj');
        }
        elseif($type=='Type1' || $type=='TrueType')
        {
            //Additional Type1 or TrueType font
            $this->_newobj();
            $this->_out('<</Type /Font');
            $this->_out('/BaseFont /'.$name);
            $this->_out('/Subtype /'.$type);
            $this->_out('/FirstChar 32 /LastChar 255');
            $this->_out('/Widths '.($this->n+1).' 0 R');
            $this->_out('/FontDescriptor '.($this->n+2).' 0 R');
            if($font['enc'])
            {
                if(isset($font['diff']))
                    $this->_out('/Encoding '.($nf+$font['diff']).' 0 R');
                else
                    $this->_out('/Encoding /WinAnsiEncoding');
            }
            $this->_out('>>');
            $this->_out('endobj');
            //Widths
            $this->_newobj();
            $cw=&$font['cw'];
            $s='[';
            for($i=32;$i<=255;$i++)
                $s.=$cw[chr($i)].' ';
            $this->_out($s.']');
            $this->_out('endobj');
            //Descriptor
            $this->_newobj();
            $s='<</Type /FontDescriptor /FontName /'.$name;
            foreach($font['desc'] as $k=>$v)
                $s.=' /'.$k.' '.$v;
            $file=$font['file'];
            if($file)
                $s.=' /FontFile'.($type=='Type1' ? '' : '2').' '.$this->FontFiles[$file]['n'].' 0 R';
            $this->_out($s.'>>');
            $this->_out('endobj');
        }
        else
        {
            //Allow for additional types
            $mtd='_put'.strtolower($type);
            if(!method_exists($this,$mtd))
                $this->Error('Unsupported font type: '.$type);
            $this->$mtd($font);
        }
    }
}

function _putimages()
{
    $filter=($this->compress) ? '/Filter /FlateDecode ' : '';
    reset($this->images);
    while(list($file,$info)=each($this->images))
    {
        $this->_newobj();
        $this->images[$file]['n']=$this->n;
        $this->_out('<</Type /XObject');
        $this->_out('/Subtype /Image');
        $this->_out('/Width '.$info['w']);
        $this->_out('/Height '.$info['h']);
        if($info['cs']=='Indexed')
            $this->_out('/ColorSpace [/Indexed /DeviceRGB '.(strlen($info['pal'])/3-1).' '.($this->n+1).' 0 R]');
        else
        {
            $this->_out('/ColorSpace /'.$info['cs']);
            if($info['cs']=='DeviceCMYK')
                $this->_out('/Decode [1 0 1 0 1 0 1 0]');
        }
        $this->_out('/BitsPerComponent '.$info['bpc']);
        if(isset($info['f']))
            $this->_out('/Filter /'.$info['f']);
        if(isset($info['parms']))
            $this->_out($info['parms']);
        if(isset($info['trns']) && is_array($info['trns']))
        {
            $trns='';
            for($i=0;$i<count($info['trns']);$i++)
                $trns.=$info['trns'][$i].' '.$info['trns'][$i].' ';
            $this->_out('/Mask ['.$trns.']');
        }
        $this->_out('/Length '.strlen($info['data']).'>>');
        $this->_putstream($info['data']);
        unset($this->images[$file]['data']);
        $this->_out('endobj');
        //Palette
        if($info['cs']=='Indexed')
        {
            $this->_newobj();
            $pal=($this->compress) ? gzcompress($info['pal']) : $info['pal'];
            $this->_out('<<'.$filter.'/Length '.strlen($pal).'>>');
            $this->_putstream($pal);
            $this->_out('endobj');
        }
    }
}

function _putxobjectdict()
{
    foreach($this->images as $image)
        $this->_out('/I'.$image['i'].' '.$image['n'].' 0 R');
}

function _putresourcedict()
{
    $this->_out('/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
    $this->_out('/Font <<');
    foreach($this->fonts as $font)
        $this->_out('/F'.$font['i'].' '.$font['n'].' 0 R');
    $this->_out('>>');
    $this->_out('/XObject <<');
    $this->_putxobjectdict();
    $this->_out('>>');
}

function _putresources()
{
    $this->_putfonts();
    $this->_putimages();
    //Resource dictionary
    $this->offsets[2]=strlen($this->buffer);
    $this->_out('2 0 obj');
    $this->_out('<<');
    $this->_putresourcedict();
    $this->_out('>>');
    $this->_out('endobj');
}

function _putinfo()
{
    $this->_out('/Producer '.$this->_textstring('FPDF '.FPDF_VERSION));
    if(!empty($this->title))
        $this->_out('/Title '.$this->_textstring($this->title));
    if(!empty($this->subject))
        $this->_out('/Subject '.$this->_textstring($this->subject));
    if(!empty($this->author))
        $this->_out('/Author '.$this->_textstring($this->author));
    if(!empty($this->keywords))
        $this->_out('/Keywords '.$this->_textstring($this->keywords));
    if(!empty($this->creator))
        $this->_out('/Creator '.$this->_textstring($this->creator));
    $this->_out('/CreationDate '.$this->_textstring('D:'.@date('YmdHis')));
}

function _putcatalog()
{
    $this->_out('/Type /Catalog');
    $this->_out('/Pages 1 0 R');
    if($this->ZoomMode=='fullpage')
        $this->_out('/OpenAction [3 0 R /Fit]');
    elseif($this->ZoomMode=='fullwidth')
        $this->_out('/OpenAction [3 0 R /FitH null]');
    elseif($this->ZoomMode=='real')
        $this->_out('/OpenAction [3 0 R /XYZ null null 1]');
    elseif(!is_string($this->ZoomMode))
        $this->_out('/OpenAction [3 0 R /XYZ null null '.($this->ZoomMode/100).']');
    if($this->LayoutMode=='single')
        $this->_out('/PageLayout /SinglePage');
    elseif($this->LayoutMode=='continuous')
        $this->_out('/PageLayout /OneColumn');
    elseif($this->LayoutMode=='two')
        $this->_out('/PageLayout /TwoColumnLeft');
}

function _putheader()
{
    $this->_out('%PDF-'.$this->PDFVersion);
}

function _puttrailer()
{
    $this->_out('/Size '.($this->n+1));
    $this->_out('/Root '.$this->n.' 0 R');
    $this->_out('/Info '.($this->n-1).' 0 R');
}

function _enddoc()
{
    $this->_putheader();
    $this->_putpages();
    $this->_putresources();
    //Info
    $this->_newobj();
    $this->_out('<<');
    $this->_putinfo();
    $this->_out('>>');
    $this->_out('endobj');
    //Catalog
    $this->_newobj();
    $this->_out('<<');
    $this->_putcatalog();
    $this->_out('>>');
    $this->_out('endobj');
    //Cross-ref
    $o=strlen($this->buffer);
    $this->_out('xref');
    $this->_out('0 '.($this->n+1));
    $this->_out('0000000000 65535 f ');
    for($i=1;$i<=$this->n;$i++)
        $this->_out(sprintf('%010d 00000 n ',$this->offsets[$i]));
    //Trailer
    $this->_out('trailer');
    $this->_out('<<');
    $this->_puttrailer();
    $this->_out('>>');
    $this->_out('startxref');
    $this->_out($o);
    $this->_out('%%EOF');
    $this->state=3;
}
//End of class
}

//Handle special IE contype request
if(isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT']=='contype')
{
    header('Content-Type: application/pdf');
    exit;
}

?>

Mas dá a mensagem FPDF error: Some data has already been output, can't send PDF file. Já usei ob_start();

<?php
  ob_start();
  require_once("fpdf/fpdf.php");
  include "valida_cookie.php";
  include "conecta_mysql.inc";
  //Resolve o problema de erro de abertura do PDF no ie6
  header('Last-Modified: '.gmdate('D, d M Y H:i:s') . ' GMT');
  header('Cache-Control: no-store, no-cache, must-revalidate'); // HTTP/1.1
  header('Cache-Control: pre-check=0, post-check=0, max-age=0'); // HTTP/1.1
  header('Content-Transfer-Encoding: none');
  define('FPDF_FONTPATH','fpdf/font/');
  $titulo="Relatório de Cidades";
   mysql_query("SET NAMES UTF8");
  $busca = mysql_query("SELECT * FROM TBCIDADE ORDER BY CDCIDADE");
  $rel = new FPDF('P','mm','A4');
  $rel->AliasNbPages( '{total}' );
  //setando os dados basicos, como titulos/autor
  $rel->SetAuthor("Sistema de Clientes Para Análise de Crédito - SCCAC");
  $rel->SetTitle("Relatório de Cidades");
  $rel->SetLeftMargin(5);
  $rel->SetRightMargin(15);
  $rel->Open(); 
  $rel->AddPage('','',1);
  $rel->SetFont('Arial', 'B', 10);
  $rel->Cell(60, 5, 'Código da Cidade');
  $rel->SetX(35);
  $rel->Cell(80, 5, 'Cidade');
  while ($resultado = mysql_fetch_array($busca)) 
  {    
    $rel->ln();   
    $rel->Cell(40, 5, $resultado['cdcidade']);    
    $rel->SetX(35);    
    $rel->Cell(60, 5, $resultado['nmcidade']);    
    $rel->SetX(50);   
  } 
 $rel->Output('teste.pdf', 'I'); 
  
?>

Se colocar assim: $rel->Output('teste.pdf'); o arquivo é gerado com os dados normalmente na pasta.

Assim $rel->Output('I'); não exibe o erro mas gera página em branco.

[Prove Yourself]

Nossa, você poderia ter deixado colocado todos os códigos dentro das tags code do fórum.

"valida_cookie.php" e "conecta_mysql.inc" imprimem algo na tela?

Um abraço.

[viper33]

Nossa, você poderia ter deixado colocado todos os códigos dentro das tags code do fórum.

"valida_cookie.php" e "conecta_mysql.inc" imprimem algo na tela?

Um abraço.

Sim. Mas testei comentando o valida cookie e retirando a impressão do conecta. Meu conecta ficou assim:

<?php        
  include "conf.php"; // inclui o arquivo conf.php        
  $con = mysql_connect($host,$user,$pass); 
  mysql_select_db($dbname); 
?>

O conf.php não contém impressão. Mas mesmo assim deu o erro.