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<?php $a=''; if (!$a) print "a=[$a]"; if (empty($a)) print "empty(a)=[$a]"; $a=0; if (!$a) print "a=[$a]"; if (empty($a)) print "empty(a)=[$a]"; $a=null; if (!$a) print "a=[$a]"; if (empty($a)) print "empty(a)=[$a]";
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 7
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 13
Branch analysis from position: 9
2 jumps found. (Code = 43) Position 1 = 16, Position 2 = 20
Branch analysis from position: 16
2 jumps found. (Code = 43) Position 1 = 22, Position 2 = 26
Branch analysis from position: 22
2 jumps found. (Code = 43) Position 1 = 29, Position 2 = 33
Branch analysis from position: 29
2 jumps found. (Code = 43) Position 1 = 35, Position 2 = 39
Branch analysis from position: 35
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 39
Branch analysis from position: 33
Branch analysis from position: 26
Branch analysis from position: 20
Branch analysis from position: 13
Branch analysis from position: 7
filename:       /in/94nnK
function name:  (null)
number of ops:  40
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, ''
    4     1        BOOL_NOT                                         ~2      !0
          2      > JMPZ                                                     ~2, ->7
          3    >   ROPE_INIT                                     3  ~4      'a%3D%5B'
          4        ROPE_ADD                                      1  ~4      ~4, !0
          5        ROPE_END                                      2  ~3      ~4, '%5D'
          6        ECHO                                                     ~3
    5     7    >   ISSET_ISEMPTY_CV                                         !0
          8      > JMPZ                                                     ~6, ->13
          9    >   ROPE_INIT                                     3  ~8      'empty%28a%29%3D%5B'
         10        ROPE_ADD                                      1  ~8      ~8, !0
         11        ROPE_END                                      2  ~7      ~8, '%5D'
         12        ECHO                                                     ~7
    6    13    >   ASSIGN                                                   !0, 0
    7    14        BOOL_NOT                                         ~11     !0
         15      > JMPZ                                                     ~11, ->20
         16    >   ROPE_INIT                                     3  ~13     'a%3D%5B'
         17        ROPE_ADD                                      1  ~13     ~13, !0
         18        ROPE_END                                      2  ~12     ~13, '%5D'
         19        ECHO                                                     ~12
    8    20    >   ISSET_ISEMPTY_CV                                         !0
         21      > JMPZ                                                     ~15, ->26
         22    >   ROPE_INIT                                     3  ~17     'empty%28a%29%3D%5B'
         23        ROPE_ADD                                      1  ~17     ~17, !0
         24        ROPE_END                                      2  ~16     ~17, '%5D'
         25        ECHO                                                     ~16
    9    26    >   ASSIGN                                                   !0, null
   10    27        BOOL_NOT                                         ~20     !0
         28      > JMPZ                                                     ~20, ->33
         29    >   ROPE_INIT                                     3  ~22     'a%3D%5B'
         30        ROPE_ADD                                      1  ~22     ~22, !0
         31        ROPE_END                                      2  ~21     ~22, '%5D'
         32        ECHO                                                     ~21
   11    33    >   ISSET_ISEMPTY_CV                                         !0
         34      > JMPZ                                                     ~24, ->39
         35    >   ROPE_INIT                                     3  ~26     'empty%28a%29%3D%5B'
         36        ROPE_ADD                                      1  ~26     ~26, !0
         37        ROPE_END                                      2  ~25     ~26, '%5D'
         38        ECHO                                                     ~25
         39    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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