3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str1 = "3543900000133243"; $str2 = "354334494923243"; $str3 = "154334494923243"; echo preg_match("/\A3543/",$str1,$res); var_dump($res);
Output for 4.3.0 - 7.2.0
1array(1) { [0]=> string(4) "3543" }