<?php $str = "ʪ֣ãÅìÐÄš³·¿ÉÁÊ¡¸Ší¿ÃÐÁ®›¶œ¸˜Ï¹¥ç"; $esc = preg_replace( '~([^a-z0-9])~u','\\\$1',$str ); var_dump( $esc );
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