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<?php $header = array('test'); print_r($header); if (isset($header[0]['class'])) { echo 'set'; } else { echo 'not set'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sMGk7
function name:  (null)
number of ops:  11
compiled vars:  !0 = $header
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        INIT_FCALL                                               'print_r'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
    4     4        FETCH_DIM_IS                                     ~3      !0, 0
          5        ISSET_ISEMPTY_DIM_OBJ                         0          ~3, 'class'
          6      > JMPZ                                                     ~4, ->9
    5     7    >   ECHO                                                     'set'
          8      > JMP                                                      ->10
    8     9    >   ECHO                                                     'not+set'
    9    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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