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<?php $formData = array(); echo '$formData[\'chain_id\'] = \'0\';'; echo "\n"; $formData['chain_id'] = '0'; echo 'empty($formData[\'chain_id]\'): '; var_dump(empty($formData['chain_id'])); echo "\n"; echo '$formData[\'chain_id\'] === \'0\': '; var_dump($formData['chain_id'] === '0');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/qBHfH
function name:  (null)
number of ops:  18
compiled vars:  !0 = $formData
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ECHO                                                     '%24formData%5B%27chain_id%27%5D+%3D+%270%27%3B'
    5     2        ECHO                                                     '%0A'
    6     3        ASSIGN_DIM                                               !0, 'chain_id'
          4        OP_DATA                                                  '0'
    7     5        ECHO                                                     'empty%28%24formData%5B%27chain_id%5D%27%29%3A+'
    8     6        INIT_FCALL                                               'var_dump'
          7        ISSET_ISEMPTY_DIM_OBJ                         1  ~3      !0, 'chain_id'
          8        SEND_VAL                                                 ~3
          9        DO_ICALL                                                 
    9    10        ECHO                                                     '%0A'
   10    11        ECHO                                                     '%24formData%5B%27chain_id%27%5D+%3D%3D%3D+%270%27%3A+'
   11    12        INIT_FCALL                                               'var_dump'
         13        FETCH_DIM_R                                      ~5      !0, 'chain_id'
         14        IS_IDENTICAL                                     ~6      ~5, '0'
         15        SEND_VAL                                                 ~6
         16        DO_ICALL                                                 
         17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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