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<?php $a = null; $a--; var_dump($a); $a = null; $a++; var_dump($a); $a = null; $a-=1; var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bfsZ8
function name:  (null)
number of ops:  16
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, null
    4     1        PRE_DEC                                                      !0
    5     2        INIT_FCALL                                                   'var_dump'
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                                     
    7     5        ASSIGN                                                       !0, null
    8     6        PRE_INC                                                      !0
    9     7        INIT_FCALL                                                   'var_dump'
          8        SEND_VAR                                                     !0
          9        DO_ICALL                                                     
   11    10        ASSIGN                                                       !0, null
   12    11        ASSIGN_OP                                         2          !0, 1
   13    12        INIT_FCALL                                                   'var_dump'
         13        SEND_VAR                                                     !0
         14        DO_ICALL                                                     
         15      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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