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<?php $test = (array_intersect(['2'], ['1', '3'])); if($test){ var_dump('true'); } else { echo('false'); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 10
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/qUdm3
function name:  (null)
number of ops:  12
compiled vars:  !0 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'array_intersect'
          1        SEND_VAL                                                 <array>
          2        SEND_VAL                                                 <array>
          3        DO_ICALL                                         $1      
          4        ASSIGN                                                   !0, $1
    5     5      > JMPZ                                                     !0, ->10
    6     6    >   INIT_FCALL                                               'var_dump'
          7        SEND_VAL                                                 'true'
          8        DO_ICALL                                                 
          9      > JMP                                                      ->11
    9    10    >   ECHO                                                     'false'
   10    11    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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