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<?php $array = ['key1' => 5, 'key2' => 17]; $array = array_filter($array, function ($value, $key) { return !!preg_match('/^key\d$/', $key); });
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AR2HL
function name:  (null)
number of ops:  8
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        INIT_FCALL                                               'array_filter'
          2        SEND_VAR                                                 !0
          3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FAR2HL%3A5%240'
    7     4        SEND_VAL                                                 ~2
          5        DO_ICALL                                         $3      
    5     6        ASSIGN                                                   !0, $3
    7     7      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FAR2HL%3A5%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AR2HL
function name:  {closure}
number of ops:  10
compiled vars:  !0 = $value, !1 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
          1        RECV                                             !1      
    6     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAL                                                 '%2F%5Ekey%5Cd%24%2F'
          4        SEND_VAR                                                 !1
          5        DO_ICALL                                         $2      
          6        BOOL_NOT                                         ~3      $2
          7        BOOL_NOT                                         ~4      ~3
          8      > RETURN                                                   ~4
    7     9*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FAR2HL%3A5%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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