3v4l.org

run code in 300+ PHP versions simultaneously
<?php $json = array( "Sample" => array( "context" => "Comment appelle-t-on un petit morceau de pain long et fin que l'on trempe dans un \u0153uf \u00e0 la coque?" ) ); return preg_replace_callback("/\\\\u([a-f0-9]{4})/e", "iconv('UCS-4LE','UTF-8',pack('V', hexdec('U$1')))", json_encode($json));

preferences:
41.37 ms | 402 KiB | 5 Q