3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = "/^(.*)$/"; $string = "the quick brown fox jumped over the lazy dog"; preg_match($pattern, $string, $match); var_dump($match[1]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/k9FRT
function name:  (null)
number of ops:  12
compiled vars:  !0 = $pattern, !1 = $string, !2 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%2F%5E%28.%2A%29%24%2F'
    3     1        ASSIGN                                                   !1, 'the+quick%0Abrown+fox%0Ajumped+over%0Athe+lazy%0Adog'
    9     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        SEND_REF                                                 !2
          6        DO_ICALL                                                 
   11     7        INIT_FCALL                                               'var_dump'
          8        FETCH_DIM_R                                      ~6      !2, 1
          9        SEND_VAL                                                 ~6
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
158.03 ms | 1394 KiB | 17 Q