3v4l.org

run code in 300+ PHP versions simultaneously
<?php $source = "this is a test"; $escaped = implode("", array_map(function($char) { if (ctype_alnum($char)) { return $char; } $bytelen = mb_strlen($char, '8bit'); $result = '\\u'; for ($i = 0; $i < $bytelen; $i++) { $result .= str_pad(dechex(ord($char[$i])), 2, '0', STR_PAD_LEFT); } return $result; }, str_split($source, 1))); var_dump($escaped);
Output for git.master, git.master_jit, rfc.property-hooks
string(23) "this\u20is\u20a\u20test"

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
48.38 ms | 401 KiB | 8 Q