PHP-Code-Test/code.php at master · elsbury13/PHP-Code-Test · GitHub

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<?php
$code = '';

if (isset($_POST['code']) && $_POST['code'] != '') {
    $code = $_POST['code'];
    $_SESSION['code'] = $code;

    $startTime = microtime(true);

    echo '<br/>';
    eval($code);
    echo '<br/><br/>';

    $endTime = microtime(true);

    $timeDiff = $endTime - $startTime;
    $timeTaken = 'Took ' . round($timeDiff, 2) . ' seconds.  ';

   $startTime = 0;
   $endTime = 0;
} elseif (isset($_SESSION['code']) && $_SESSION['code'] != '') {
    $code = $_SESSION['code'];
}

?>
<hr>
<form action="" method="post">
    <textarea cols="100" rows="15" id="code" name="code"><?php echo $code ?></textarea>
    <br/><br/>
    <input type="submit" />
</form>
<hr>
<?= isset($timeTaken) ? $timeTaken : ''; ?>