3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = ',,'; var_dump(preg_split("/\s*,\s*/", trim($str), -1, 0));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KI1rA
function name:  (null)
number of ops:  14
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%2C%2C'
    3     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'preg_split'
          3        SEND_VAL                                                 '%2F%5Cs%2A%2C%5Cs%2A%2F'
          4        INIT_FCALL                                               'trim'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $2      
          7        SEND_VAR                                                 $2
          8        SEND_VAL                                                 -1
          9        SEND_VAL                                                 0
         10        DO_ICALL                                         $3      
         11        SEND_VAR                                                 $3
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
173.73 ms | 1394 KiB | 19 Q