- var_dump: documentation ( source)
- mb_ereg: documentation ( source)
<?php
$x = '[^A-Za-z\r\n@£$¥èéùìòÇØøÅå\u0394\u03A6\u0393\u039B\u03A9\u03A0\u03A8\u03A3\u0398\u039EÆæßÉ!"#$%&\'()*+,\-./:;<><=>?¡ÄÖÑܧ¿äöñüà^{}]';
$data = 'asdf‘‼asdf';
$tmp = [];
$result = mb_ereg($x,$data,$tmp);
var_dump($tmp);
/*
$result = preg_match_all($x,$data,$tmp);
var_dump($tmp);
$z = $tmp[0][1];
$y = strpos($data,$z);
$q = substr($data,$y,3);
var_dump($q);
*/