3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [0, 1, 2, 3, 4, 5, 6]; $b = [4]; print_r(array_udiff($a, $b, function($x, $y) { return $x <=> $y; })); print_r(array_udiff($a, $b, function($x, $y) { return $x != $y; }));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Jf78A
function name:  (null)
number of ops:  21
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    6     2        INIT_FCALL                                               'print_r'
          3        INIT_FCALL                                               'array_udiff'
          4        SEND_VAR                                                 !0
          5        SEND_VAR                                                 !1
          6        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FJf78A%3A6%240'
    8     7        SEND_VAL                                                 ~4
          8        DO_ICALL                                         $5      
          9        SEND_VAR                                                 $5
         10        DO_ICALL                                                 
   10    11        INIT_FCALL                                               'print_r'
         12        INIT_FCALL                                               'array_udiff'
         13        SEND_VAR                                                 !0
         14        SEND_VAR                                                 !1
         15        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FJf78A%3A10%241'
   12    16        SEND_VAL                                                 ~7
         17        DO_ICALL                                         $8      
         18        SEND_VAR                                                 $8
         19        DO_ICALL                                                 
         20      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FJf78A%3A6%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Jf78A
function name:  {closure}
number of ops:  5
compiled vars:  !0 = $x, !1 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   RECV                                             !0      
          1        RECV                                             !1      
    7     2        SPACESHIP                                        ~2      !0, !1
          3      > RETURN                                                   ~2
    8     4*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FJf78A%3A6%240

Function %00%7Bclosure%7D%2Fin%2FJf78A%3A10%241:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Jf78A
function name:  {closure}
number of ops:  5
compiled vars:  !0 = $x, !1 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   11     2        IS_NOT_EQUAL                                     ~2      !0, !1
          3      > RETURN                                                   ~2
   12     4*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FJf78A%3A10%241

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
162 ms | 1388 KiB | 17 Q