3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = function () { return [['a'], ['b'], ['c']]; }; $bar = function () { return [['a'], ['b'], ['c']]; }; var_dump(array_merge( ...$foo(), ...$bar() ));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vu0b8
function name:  (null)
number of ops:  17
compiled vars:  !0 = $foo, !1 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   DECLARE_LAMBDA_FUNCTION                          ~2      [0]
          1        ASSIGN                                                   !0, ~2
    4     2        DECLARE_LAMBDA_FUNCTION                          ~4      [1]
          3        ASSIGN                                                   !1, ~4
    6     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'array_merge'
    7     6        INIT_DYNAMIC_CALL                                        !0
          7        DO_FCALL                                      0  $6      
          8        SEND_UNPACK                                              $6
    8     9        INIT_DYNAMIC_CALL                                        !1
         10        DO_FCALL                                      0  $7      
         11        SEND_UNPACK                                              $7
         12        CHECK_UNDEF_ARGS                                         
    6    13        DO_ICALL                                         $8      
    8    14        SEND_VAR                                                 $8
    6    15        DO_ICALL                                                 
    9    16      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vu0b8
function name:  {closure}
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E > > RETURN                                                   <array>
          1*     > RETURN                                                   null

End of Dynamic Function 0

Dynamic Function 1
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vu0b8
function name:  {closure}
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E > > RETURN                                                   <array>
          1*     > RETURN                                                   null

End of Dynamic Function 1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
144.72 ms | 1460 KiB | 15 Q