3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [["fName" => "Alice", "lName" => "Gibson"], ["fName" => "Jack", "lName" => "Smith"], ["fName" => "Bruce", "lName" => "Lee"]]; $arrFnames = array_map(function($e) { return $e["fName"]; },$arr); var_dump($arrFnames);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OD6ZB
function name:  (null)
number of ops:  11
compiled vars:  !0 = $arr, !1 = $arrFnames
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    7     1        INIT_FCALL                                               'array_map'
          2        DECLARE_LAMBDA_FUNCTION                          ~3      [0]
   10     3        SEND_VAL                                                 ~3
          4        SEND_VAR                                                 !0
    7     5        DO_ICALL                                         $4      
          6        ASSIGN                                                   !1, $4
   12     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
         10      > 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/OD6ZB
function name:  {closure}
number of ops:  4
compiled vars:  !0 = $e
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   RECV                                             !0      
    8     1        FETCH_DIM_R                                      ~1      !0, 'fName'
          2      > RETURN                                                   ~1
   10     3*     > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.73 ms | 1005 KiB | 15 Q