3v4l.org

run code in 300+ PHP versions simultaneously
<?php $hi = "hi I'd like to welcome"; preg_match("/Hi/i",$hi,$match); var_dump($match);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dsNcj
function name:  (null)
number of ops:  10
compiled vars:  !0 = $hi, !1 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'hi+I%27d+like+to+welcome'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2FHi%2Fi'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        DO_ICALL                                                 
    4     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
300.16 ms | 1394 KiB | 17 Q