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<?php $arr = array('test' => array('percy' => array('hello' => 'hatcherson'), 'percy' => array('mitchell', 'anderson'))); $allowed = array('percy'); $res = array_intersect_key($arr, array_flip($allowed)); var_dump($res);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/uTsSG
function name:  (null)
number of ops:  14
compiled vars:  !0 = $arr, !1 = $allowed, !2 = $res
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ASSIGN                                                   !0, <array>
    7     1        ASSIGN                                                   !1, <array>
    9     2        INIT_FCALL                                               'array_intersect_key'
          3        SEND_VAR                                                 !0
          4        INIT_FCALL                                               'array_flip'
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $5      
          7        SEND_VAR                                                 $5
          8        DO_ICALL                                         $6      
          9        ASSIGN                                                   !2, $6
   11    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !2
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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