3v4l.org

run code in 300+ PHP versions simultaneously
<?php $days = 'MTWTHFS'; $split = preg_split('/.H?\K/', $days, 0, PREG_SPLIT_NO_EMPTY); var_export($split);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GGP81
function name:  (null)
number of ops:  12
compiled vars:  !0 = $days, !1 = $split
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'MTWTHFS'
    4     1        INIT_FCALL                                               'preg_split'
          2        SEND_VAL                                                 '%2F.H%3F%5CK%2F'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 0
          5        SEND_VAL                                                 1
          6        DO_ICALL                                         $3      
          7        ASSIGN                                                   !1, $3
    5     8        INIT_FCALL                                               'var_export'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
149.28 ms | 1010 KiB | 15 Q