3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = [[2,1], [1,2], [1,2], [2,1], [2,3], [3,2], [4,5]]; array_walk($data, 'sort'); $data = array_unique($data, SORT_REGULAR); var_dump($data);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/A1gkX
function name:  (null)
number of ops:  14
compiled vars:  !0 = $data
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        INIT_FCALL                                               'array_walk'
          2        SEND_REF                                                 !0
          3        SEND_VAL                                                 'sort'
          4        DO_ICALL                                                 
    6     5        INIT_FCALL                                               'array_unique'
          6        SEND_VAR                                                 !0
          7        SEND_VAL                                                 0
          8        DO_ICALL                                         $3      
          9        ASSIGN                                                   !0, $3
    8    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !0
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
144.97 ms | 1394 KiB | 19 Q