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<?php $code = 'fr_fr'; var_dump(false === ($pos = strpos($code, '_')) ? $code : substr($code, 0, $pos)); $code = 'fr'; var_dump(false === ($pos = strpos($code, '_')) ? $code : substr($code, 0, $pos)); $code = '_fr'; var_dump(false === ($pos = strpos($code, '_')) ? $code : substr($code, 0, $pos));
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 11
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 17
Branch analysis from position: 17
2 jumps found. (Code = 43) Position 1 = 28, Position 2 = 30
Branch analysis from position: 28
1 jumps found. (Code = 42) Position 1 = 36
Branch analysis from position: 36
2 jumps found. (Code = 43) Position 1 = 47, Position 2 = 49
Branch analysis from position: 47
1 jumps found. (Code = 42) Position 1 = 55
Branch analysis from position: 55
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 49
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 30
2 jumps found. (Code = 43) Position 1 = 47, Position 2 = 49
Branch analysis from position: 47
Branch analysis from position: 49
Branch analysis from position: 11
2 jumps found. (Code = 43) Position 1 = 28, Position 2 = 30
Branch analysis from position: 28
Branch analysis from position: 30
filename:       /in/oQsoV
function name:  (null)
number of ops:  58
compiled vars:  !0 = $code, !1 = $pos
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'fr_fr'
    3     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'strpos'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 '_'
          5        DO_ICALL                                         $3      
          6        ASSIGN                                           ~4      !1, $3
          7        TYPE_CHECK                                    4          ~4
          8      > JMPZ                                                     ~5, ->11
          9    >   QM_ASSIGN                                        ~6      !0
         10      > JMP                                                      ->17
         11    >   INIT_FCALL                                               'substr'
         12        SEND_VAR                                                 !0
         13        SEND_VAL                                                 0
         14        SEND_VAR                                                 !1
         15        DO_ICALL                                         $7      
         16        QM_ASSIGN                                        ~6      $7
         17    >   SEND_VAL                                                 ~6
         18        DO_ICALL                                                 
    4    19        ASSIGN                                                   !0, 'fr'
    5    20        INIT_FCALL                                               'var_dump'
         21        INIT_FCALL                                               'strpos'
         22        SEND_VAR                                                 !0
         23        SEND_VAL                                                 '_'
         24        DO_ICALL                                         $10     
         25        ASSIGN                                           ~11     !1, $10
         26        TYPE_CHECK                                    4          ~11
         27      > JMPZ                                                     ~12, ->30
         28    >   QM_ASSIGN                                        ~13     !0
         29      > JMP                                                      ->36
         30    >   INIT_FCALL                                               'substr'
         31        SEND_VAR                                                 !0
         32        SEND_VAL                                                 0
         33        SEND_VAR                                                 !1
         34        DO_ICALL                                         $14     
         35        QM_ASSIGN                                        ~13     $14
         36    >   SEND_VAL                                                 ~13
         37        DO_ICALL                                                 
    6    38        ASSIGN                                                   !0, '_fr'
    7    39        INIT_FCALL                                               'var_dump'
         40        INIT_FCALL                                               'strpos'
         41        SEND_VAR                                                 !0
         42        SEND_VAL                                                 '_'
         43        DO_ICALL                                         $17     
         44        ASSIGN                                           ~18     !1, $17
         45        TYPE_CHECK                                    4          ~18
         46      > JMPZ                                                     ~19, ->49
         47    >   QM_ASSIGN                                        ~20     !0
         48      > JMP                                                      ->55
         49    >   INIT_FCALL                                               'substr'
         50        SEND_VAR                                                 !0
         51        SEND_VAL                                                 0
         52        SEND_VAR                                                 !1
         53        DO_ICALL                                         $21     
         54        QM_ASSIGN                                        ~20     $21
         55    >   SEND_VAL                                                 ~20
         56        DO_ICALL                                                 
         57      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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