3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php /** @author: Pavlo Matsura <webxid@ukr.net> */function _dump($str, $exit = false, $var_title = 1, $var_dump = false) {if (!$var_dump) {$buff = print_r($str, true);} else {ob_start();var_dump($str);$buff = ob_get_clean();}$dumps_html = "\nDeBuging Dump\n=============\n# " . $var_title . "\n" . "===================================\n\n" . $buff . "\n" . "===================================\n\n";echo $dumps_html;if ($exit) {exit();}} $array = array(23 => 100, 57 => "red"); _dump(array_keys($array)); /* ----------- */
Output for 5.6.30, hhvm-3.15.4 - 3.22.0, 7.0.0 - 7.3.1
DeBuging Dump ============= # 1 =================================== Array ( [0] => 23 [1] => 57 ) ===================================