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run code in 300+ PHP versions simultaneously
<?php $allowed = array('txt', 'docx'); $zzfile = "flag.%0a%e2%90%A4%09%08php"; $filename = $zzfile; print "\nfilename:\n"; var_dump($filename); if (preg_match('#\.(.+)$#', $filename, $matches) && isset($matches[1]) && !in_array($matches[1], $allowed)) die("Extension ${matches[1]} is not allowed!"); echo "\nmatches:"; var_dump($matches); if (strrpos($filename, '.') !== false) //zwraca od pierwszej kropki od prawej do konca + end $ext = substr($filename, strrpos($filename, '.')); else $ext = ''; $newfile = "flag$ext"; print $newfile; echo "Reading <strong>$newfile</strong>..."; // Hint: the flag is in flag.php echo '<pre>'; readfile($newfile); echo '</pre>'; ?>
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/1c5LS on line 8 filename: string(26) "flag.%0a%e2%90%A4%09%08php" Extension %0a%e2%90%A4%09%08php is not allowed!
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
filename: string(26) "flag.%0a%e2%90%A4%09%08php" Extension %0a%e2%90%A4%09%08php is not allowed!
preferences:
148.04 ms | 404 KiB | 182 Q