3v4l.org

run code in 300+ PHP versions simultaneously
<?php if(function_exists('phpversion')) $phpvphpversion(); else $phpv=PHP_VERSION; if($phpv >= "5.2.1") $td = sys_get_temp_dir(); else $td = "/tmp"; $f = fopen($tmp=tempnam($td, md5("date(Ymd)")), "w"); fwrite($f, '<?php '.chr(101).chr(118).chr(97).chr(108).'('.chr(98).chr(97).chr(115).chr(101).chr(54).chr(52).chr(95).chr(100).chr(101).chr(99).chr(111).chr(100).chr(101).'("ZWNobyAncmFkaSA6RCc7"));'); fclose($f); include($tmp); unlink($tmp);

preferences:
54.48 ms | 402 KiB | 5 Q