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<?php $array = array( "foo" => 1, "bar" => 0, "test"=> 1, );$mask = 0;$i = 0;foreach($array as $value){$mask |= $value << $i;$i++;}var_dump($mask);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 9
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 9
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/1KoM5
function name:  (null)
number of ops:  14
compiled vars:  !0 = $array, !1 = $mask, !2 = $i, !3 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
          1        ASSIGN                                                   !1, 0
          2        ASSIGN                                                   !2, 0
          3      > FE_RESET_R                                       $7      !0, ->9
          4    > > FE_FETCH_R                                               $7, !3, ->9
          5    >   SL                                               ~8      !3, !2
          6        ASSIGN_OP                                     9          !1, ~8
          7        PRE_INC                                                  !2
          8      > JMP                                                      ->4
          9    >   FE_FREE                                                  $7
         10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !1
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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