3v4l.org

run code in 300+ PHP versions simultaneously
<?php $sub = ['a', 'b', 'c']; echo "<table class='table'><thead><tr>"; for($j = 0; $j < count($sub); $j++){ echo "<th scope='col'>" . $sub[$j] . "</th>"; } echo "</tr></thead></table>";
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<table class='table'><thead><tr><th scope='col'>a</th><th scope='col'>b</th><th scope='col'>c</th></tr></thead></table>

preferences:
135.67 ms | 402 KiB | 121 Q