3v4l.org

run code in 300+ PHP versions simultaneously
<?php $func = function (callback $a) { $a(); }; $a = function () { echo 'Hello World'; }; $func($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8aUji
function name:  (null)
number of ops:  8
compiled vars:  !0 = $func, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2F8aUji%3A2%240'
          1        ASSIGN                                                   !0, ~2
    6     2        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2F8aUji%3A6%241'
          3        ASSIGN                                                   !1, ~4
   10     4        INIT_DYNAMIC_CALL                                        !0
          5        SEND_VAR_EX                                              !1
          6        DO_FCALL                                      0          
          7      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2F8aUji%3A2%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8aUji
function name:  {closure}
number of ops:  4
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    3     1        INIT_DYNAMIC_CALL                                        !0
          2        DO_FCALL                                      0          
    4     3      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2F8aUji%3A2%240

Function %00%7Bclosure%7D%2Fin%2F8aUji%3A6%241:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8aUji
function name:  {closure}
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   ECHO                                                     'Hello+World'
    8     1      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2F8aUji%3A6%241

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
158.52 ms | 1393 KiB | 13 Q