3v4l.org

run code in 300+ PHP versions simultaneously
<?php $addr = "http://www.example.com/?pk_lol=VAgin&utm_campaign=printemps&utm_medium=e-mail&utm_source=newsletter1&utm_content=lien-en-haut"; $pattern ="(utm_medium=.[^&]+)/i"; preg_match($pattern, $addr, $result); print_r($result);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/d2Q8S
function name:  (null)
number of ops:  11
compiled vars:  !0 = $addr, !1 = $pattern, !2 = $result
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'http%3A%2F%2Fwww.example.com%2F%3Fpk_lol%3DVAgin%26utm_campaign%3Dprintemps%26utm_medium%3De-mail%26utm_source%3Dnewsletter1%26utm_content%3Dlien-en-haut'
    5     1        ASSIGN                                                   !1, '%28utm_medium%3D.%5B%5E%26%5D%2B%29%2Fi'
    7     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAR                                                 !1
          4        SEND_VAR                                                 !0
          5        SEND_REF                                                 !2
          6        DO_ICALL                                                 
    9     7        INIT_FCALL                                               'print_r'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.61 ms | 1385 KiB | 17 Q