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<?php $records = array( array( 'id' => 3245 , 'first_name' => 'John' , 'last_name' => 'Doe' , ), array( 'id' => 3245 , 'first_name' => 'Sally' , 'last_name' => 'Smith' , ), array( 'id' => 5342 , 'first_name' => 'Jane' , 'last_name' => 'Jones' , ), array( 'id' => 5623 , 'first_name' => 'Peter' , 'last_name' => 'Doe' , ) ); $first_names = array_column ( $records , 'id' ); print_r ( $first_names );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/qDTka
function name:  (null)
number of ops:  10
compiled vars:  !0 = $records, !1 = $first_names
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
   25     1        INIT_FCALL                                               'array_column'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 'id'
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !1, $3
   26     6        INIT_FCALL                                               'print_r'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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