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<?php $array = array('foo' => 'bar', 'baz' => 'bat'); array_walk($array, function($val,$key) use($array){ if ($val == 'bar') { unset($array[$key]); } }); var_dump($array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gpeSs
function name:  (null)
number of ops:  11
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        INIT_FCALL                                               'array_walk'
          2        SEND_REF                                                 !0
          3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FgpeSs%3A5%240'
          4        BIND_LEXICAL                                             ~2, !0
    9     5        SEND_VAL                                                 ~2
          6        DO_ICALL                                                 
   11     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FgpeSs%3A5%240:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 6
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
filename:       /in/gpeSs
function name:  {closure}
number of ops:  7
compiled vars:  !0 = $val, !1 = $key, !2 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        BIND_STATIC                                              !2
    6     3        IS_EQUAL                                                 !0, 'bar'
          4      > JMPZ                                                     ~3, ->6
    7     5    >   UNSET_DIM                                                !2, !1
    9     6    > > RETURN                                                   null

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

Generated using Vulcan Logic Dumper, using php 8.0.0


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