3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set('pcre.jit', 1); preg_match('~[^\p{Han}\p{Z}]~u', ' ', $matches); var_dump($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eqms1
function name:  (null)
number of ops:  13
compiled vars:  !0 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'ini_set'
          1        SEND_VAL                                                 'pcre.jit'
          2        SEND_VAL                                                 1
          3        DO_ICALL                                                 
    4     4        INIT_FCALL                                               'preg_match'
          5        SEND_VAL                                                 '%7E%5B%5E%5Cp%7BHan%7D%5Cp%7BZ%7D%5D%7Eu'
          6        SEND_VAL                                                 '+++++'
          7        SEND_REF                                                 !0
          8        DO_ICALL                                                 
    5     9        INIT_FCALL                                               'var_dump'
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
266.97 ms | 1394 KiB | 19 Q