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bytefade/gist:eec8a52354eaaed9a2c9

Created December 2, 2014 22:41
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gistfile1.txt
<!DOCTYPE html>
<html lang="pt">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<label for="valor">Qual o valor senhor?</label>
<input id="valor" type="text" name="valor">
</form>
<?php
if ($_SERVER['REQUEST_METHOD']=='POST') {
// preciso pegar o valor do form
$valor = sqrt($_POST['valor']);
?>
O valor da raiz quadrada para o valor: <?php echo $_POST['valor'] ?> é: <?php echo $valor; ?>
<?php } ?>
</body>
</html>
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