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<?php $arr = [ ['user_id' => 1234], ['user_id' => 5678] ]; $arrId = array_column($arr,null,'user_id'); unset($arrId[1234]); $numArr = array_values($arrId); var_export($numArr);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lBcqK
function name:  (null)
number of ops:  16
compiled vars:  !0 = $arr, !1 = $arrId, !2 = $numArr
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    8     1        INIT_FCALL                                                   'array_column'
          2        SEND_VAR                                                     !0
          3        SEND_VAL                                                     null
          4        SEND_VAL                                                     'user_id'
          5        DO_ICALL                                             $4      
          6        ASSIGN                                                       !1, $4
   10     7        UNSET_DIM                                                    !1, 1234
   12     8        INIT_FCALL                                                   'array_values'
          9        SEND_VAR                                                     !1
         10        DO_ICALL                                             $6      
         11        ASSIGN                                                       !2, $6
   14    12        INIT_FCALL                                                   'var_export'
         13        SEND_VAR                                                     !2
         14        DO_ICALL                                                     
         15      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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