<?php
$str = "luke";
echo preg_replace_callback('~^(?![eiux])[a-z]~', function($m) {
return ucfirst($m[0]);
}, $str);
$str = "egg";
echo "\n" . preg_replace_callback('~^(?![eiux])[a-z]~', function($m) {
return ucfirst($m[0]);
}, $str);
- Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
- Luke
egg
preferences:
154.73 ms | 403 KiB | 224 Q