<?php
$str = "ʪ֣ãdÅìÐÄš³·¿ÉÁÊg¡¸Ší¿ÃÐgdÁ®›¶œ¸˜Ïg¹¥ç";
$esc = preg_replace( '~([^a-z0-9])~u','\\\$1',$str );
var_dump( $esc );
- Output for 4.3.3 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- string(111) "\Ê\ª\Ö\£\ãd\Å\ì\Ð\Ä\š\³\·\¿\\É\Á\Êg\¡\¸\Š\í\¿\Ã\Ðgd\Á\®\›\¶\œ\¸\˜\Ïg\¹\¥\ç"
- Output for 4.3.0 - 4.3.2
- string(112) "\Ê\ª\Ö\£\ãd\Å\ì\Ð\Ä�\�\³\·\¿\\É\Á\Êg\¡\¸�\�\í\¿\Ã\Ðgd\Á\®�\�\�\¶�\�\¸�\�\Ïg\¹\¥\ç"
preferences:
243.54 ms | 401 KiB | 313 Q