srsbiz

<?php 
header('Content-Type: text/html; charset=utf-8');
define('POST_MAX_LENGTH', 4096);

if (!isset($_POST['txt'])) {
    $txt = "<?php\necho 'Hello World!';\n?>";
} elseif(strlen($_POST['txt']) > POST_MAX_LENGTH) {
	$txt = substr($_POST['txt'], 0, POST_MAX_LENGTH);
} else {
	$txt = $_POST['txt'];

srsbiz

<?php

/**
 * Multibyte friendly tab replacer.
 * @param string $line Line with tabs to convert
 * @param int $tabsize Number of space characters in full width tab
 * @return string Line without tabs
 */
function tab2space($line, $tabsize = 4)
{