3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = function () { return [['a'], ['b'], ['c']]; }; var_dump(array_merge( ...$foo(), ...$foo() ));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/nAP2X
function name:  (null)
number of ops:  15
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FnAP2X%3A3%240'
          1        ASSIGN                                                   !0, ~1
    5     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'array_merge'
    6     4        INIT_DYNAMIC_CALL                                        !0
          5        DO_FCALL                                      0  $3      
          6        SEND_UNPACK                                              $3
    7     7        INIT_DYNAMIC_CALL                                        !0
          8        DO_FCALL                                      0  $4      
          9        SEND_UNPACK                                              $4
         10        CHECK_UNDEF_ARGS                                         
         11        DO_ICALL                                         $5      
         12        SEND_VAR                                                 $5
         13        DO_ICALL                                                 
    8    14      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FnAP2X%3A3%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/nAP2X
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 function %00%7Bclosure%7D%2Fin%2FnAP2X%3A3%240

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
168.34 ms | 940 KiB | 18 Q