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where dendro do where



Estou tentando fazer um simulado eletronico mas quando faço o laço de repetições as pergunta repetidas retornam com a mesma quantidade das respostas vou mandar o codigo fonte para vocês darem uma olhadinha

<?php include ("_conexao/conecta.php");?>
$select = "SELECT * from pergunta p, resposta r WHERE p.id_pergunta = r.id_perg";
try {
$result = $conexao->prepare($select);
$contar = $result->rowCount();
if($contar>0) {

while ($mostra1 = $result->FETCH(PDO::FETCH_OBJ)){

<td></br><?php echo $mostra1->pergunta;?></br></td>


$result2 = $conexao->prepare($select);
$contar2 = $result2->rowCount();
while ($mostra2 = $result2->FETCH(PDO::FETCH_OBJ)){
<td><?php echo $mostra2->resposta;?></td></br>


} catch (PDOException $e) {
echo $e;


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