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<?php $a = "1.0e6"; $b = "1.e6"; $c = 1000000; $d = null; echo 'a == b '; var_dump($a == $b); echo 'a == c '; var_dump($a == $c); echo 'a == d '; var_dump($a == $d); echo "\n"; echo 'a === b '; var_dump($a === $b); echo 'a === c '; var_dump($a === $c); echo 'a === d '; var_dump($a === $d); echo "\n"; echo 'strcmp(a, b) '; var_dump(@strcmp($a, $b)); echo 'strcmp(a, c) '; var_dump(@strcmp($a, $c)); echo 'strcmp(a, d) '; var_dump(@strcmp($a, $d)); echo 'strcmp(d, a) '; var_dump(@strcmp($d, $a)); echo "\n"; echo 'strcasecmp(a, b) '; var_dump(@strcasecmp($a, $b)); echo 'strcasecmp(a, c) '; var_dump(@strcasecmp($a, $c)); echo 'strcasecmp(a, d) '; var_dump(@strcasecmp($a, $d)); echo 'strcasecmp(d, a) '; var_dump(@strcasecmp($d, $a));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Zq8tM
function name:  (null)
number of ops:  118
compiled vars:  !0 = $a, !1 = $b, !2 = $c, !3 = $d
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, '1.0e6'
    4     1        ASSIGN                                                       !1, '1.e6'
    5     2        ASSIGN                                                       !2, 1000000
    6     3        ASSIGN                                                       !3, null
    8     4        ECHO                                                         'a+%3D%3D+b+'
          5        INIT_FCALL                                                   'var_dump'
          6        IS_EQUAL                                             ~8      !0, !1
          7        SEND_VAL                                                     ~8
          8        DO_ICALL                                                     
    9     9        ECHO                                                         'a+%3D%3D+c+'
         10        INIT_FCALL                                                   'var_dump'
         11        IS_EQUAL                                             ~10     !0, !2
         12        SEND_VAL                                                     ~10
         13        DO_ICALL                                                     
   10    14        ECHO                                                         'a+%3D%3D+d+'
         15        INIT_FCALL                                                   'var_dump'
         16        IS_EQUAL                                             ~12     !0, !3
         17        SEND_VAL                                                     ~12
         18        DO_ICALL                                                     
   12    19        ECHO                                                         '%0A'
   14    20        ECHO                                                         'a+%3D%3D%3D+b+'
         21        INIT_FCALL                                                   'var_dump'
         22        IS_IDENTICAL                                         ~14     !0, !1
         23        SEND_VAL                                                     ~14
         24        DO_ICALL                                                     
   15    25        ECHO                                                         'a+%3D%3D%3D+c+'
         26        INIT_FCALL                                                   'var_dump'
         27        IS_IDENTICAL                                         ~16     !0, !2
         28        SEND_VAL                                                     ~16
         29        DO_ICALL                                                     
   16    30        ECHO                                                         'a+%3D%3D%3D+d+'
         31        INIT_FCALL                                                   'var_dump'
         32        IS_IDENTICAL                                         ~18     !0, !3
         33        SEND_VAL                                                     ~18
         34        DO_ICALL                                                     
   18    35        ECHO                                                         '%0A'
   20    36        ECHO                                                         'strcmp%28a%2C+b%29+'
         37        INIT_FCALL                                                   'var_dump'
         38        BEGIN_SILENCE                                        ~20     
         39        INIT_FCALL                                                   'strcmp'
         40        SEND_VAR                                                     !0
         41        SEND_VAR                                                     !1
         42        DO_ICALL                                             $21     
         43        END_SILENCE                                                  ~20
         44        SEND_VAR                                                     $21
         45        DO_ICALL                                                     
   21    46        ECHO                                                         'strcmp%28a%2C+c%29+'
         47        INIT_FCALL                                                   'var_dump'
         48        BEGIN_SILENCE                                        ~23     
         49        INIT_FCALL                                                   'strcmp'
         50        SEND_VAR                                                     !0
         51        SEND_VAR                                                     !2
         52        DO_ICALL                                             $24     
         53        END_SILENCE                                                  ~23
         54        SEND_VAR                                                     $24
         55        DO_ICALL                                                     
   22    56        ECHO                                                         'strcmp%28a%2C+d%29+'
         57        INIT_FCALL                                                   'var_dump'
         58        BEGIN_SILENCE                                        ~26     
         59        INIT_FCALL                                                   'strcmp'
         60        SEND_VAR                                                     !0
         61        SEND_VAR                                                     !3
         62        DO_ICALL                                             $27     
         63        END_SILENCE                                                  ~26
         64        SEND_VAR                                                     $27
         65        DO_ICALL                                                     
   23    66        ECHO                                                         'strcmp%28d%2C+a%29+'
         67        INIT_FCALL                                                   'var_dump'
         68        BEGIN_SILENCE                                        ~29     
         69        INIT_FCALL                                                   'strcmp'
         70        SEND_VAR                                                     !3
         71        SEND_VAR                                                     !0
         72        DO_ICALL                                             $30     
         73        END_SILENCE                                                  ~29
         74        SEND_VAR                                                     $30
         75        DO_ICALL                                                     
   25    76        ECHO                                                         '%0A'
   27    77        ECHO                                                         'strcasecmp%28a%2C+b%29+'
         78        INIT_FCALL                                                   'var_dump'
         79        BEGIN_SILENCE                                        ~32     
         80        INIT_FCALL                                                   'strcasecmp'
         81        SEND_VAR                                                     !0
         82        SEND_VAR                                                     !1
         83        DO_ICALL                                             $33     
         84        END_SILENCE                                                  ~32
         85        SEND_VAR                                                     $33
         86        DO_ICALL                                                     
   28    87        ECHO                                                         'strcasecmp%28a%2C+c%29+'
         88        INIT_FCALL                                                   'var_dump'
         89        BEGIN_SILENCE                                        ~35     
         90        INIT_FCALL                                                   'strcasecmp'
         91        SEND_VAR                                                     !0
         92        SEND_VAR                                                     !2
         93        DO_ICALL                                             $36     
         94        END_SILENCE                                                  ~35
         95        SEND_VAR                                                     $36
         96        DO_ICALL                                                     
   29    97        ECHO                                                         'strcasecmp%28a%2C+d%29+'
         98        INIT_FCALL                                                   'var_dump'
         99        BEGIN_SILENCE                                        ~38     
        100        INIT_FCALL                                                   'strcasecmp'
        101        SEND_VAR                                                     !0
        102        SEND_VAR                                                     !3
        103        DO_ICALL                                             $39     
        104        END_SILENCE                                                  ~38
        105        SEND_VAR                                                     $39
        106        DO_ICALL                                                     
   30   107        ECHO                                                         'strcasecmp%28d%2C+a%29+'
        108        INIT_FCALL                                                   'var_dump'
        109        BEGIN_SILENCE                                        ~41     
        110        INIT_FCALL                                                   'strcasecmp'
        111        SEND_VAR                                                     !3
        112        SEND_VAR                                                     !0
        113        DO_ICALL                                             $42     
        114        END_SILENCE                                                  ~41
        115        SEND_VAR                                                     $42
        116        DO_ICALL                                                     
        117      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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