3v4l.org

run code in 300+ PHP versions simultaneously
<?php "${@eval('phpinfo();')}"; $tokens = token_get_all('<?php $a = "{$phpinfo()}";'); foreach ($tokens as $token) { if (is_array($token)) echo (token_name($token[0]) . ': "' . $token[1] . '"'."\n"); else echo ('"' . $token . '"'."\n"); }

preferences:
38.19 ms | 402 KiB | 5 Q