3v4l.org

run code in 500+ PHP versions simultaneously
<?php $var = array( 'a' => 'a', 'b' => 'b', ); array_walk($var, function ($value) { }); var_dump(key($var));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/46Cbn
function name:  (null)
number of ops:  13
compiled vars:  !0 = $var
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    8     1        INIT_FCALL                                                   'array_walk'
          2        SEND_REF                                                     !0
          3        DECLARE_LAMBDA_FUNCTION                              ~2      [0]
    9     4        SEND_VAL                                                     ~2
    8     5        DO_ICALL                                                     
   11     6        INIT_FCALL                                                   'var_dump'
          7        INIT_FCALL                                                   'key'
          8        SEND_VAR                                                     !0
          9        DO_ICALL                                             $4      
         10        SEND_VAR                                                     $4
         11        DO_ICALL                                                     
         12      > 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/46Cbn
function name:  {closure:/in/46Cbn:8}
number of ops:  2
compiled vars:  !0 = $value
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    8     0  E >   RECV                                                 !0      
    9     1      > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
162.14 ms | 3220 KiB | 16 Q