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<?php $values['id'] = 0; $id = isset($values['id']) ? $values['id'] : null; var_dump($id);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 7
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8opRE
function name:  (null)
number of ops:  13
compiled vars:  !0 = $values, !1 = $id
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN_DIM                                               !0, 'id'
          1        OP_DATA                                                  0
    4     2        ISSET_ISEMPTY_DIM_OBJ                         0          !0, 'id'
          3      > JMPZ                                                     ~3, ->7
          4    >   FETCH_DIM_R                                      ~4      !0, 'id'
          5        QM_ASSIGN                                        ~5      ~4
          6      > JMP                                                      ->8
          7    >   QM_ASSIGN                                        ~5      null
          8    >   ASSIGN                                                   !1, ~5
    5     9        INIT_FCALL                                               'var_dump'
         10        SEND_VAR                                                 !1
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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171.89 ms | 1394 KiB | 15 Q