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<?php $names = array( array('id' => 123, 'name' => 'A'), array('id' => 456, 'name' => 'B'), array('id' => 789, 'name' => 'C'), ); $ids = array_map(function ($name) { return $name['id']; }, $names); var_dump($ids);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jqskq
function name:  (null)
number of ops:  11
compiled vars:  !0 = $names, !1 = $ids
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    9     1        INIT_FCALL                                               'array_map'
          2        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2Fjqskq%3A9%240'
   11     3        SEND_VAL                                                 ~3
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $4      
    9     6        ASSIGN                                                   !1, $4
   13     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2Fjqskq%3A9%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jqskq
function name:  {closure}
number of ops:  4
compiled vars:  !0 = $name
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   RECV                                             !0      
   10     1        FETCH_DIM_R                                      ~1      !0, 'id'
          2      > RETURN                                                   ~1
   11     3*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2Fjqskq%3A9%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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