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<?php var_dump(strripos('abcdéf12345abcdéf', 'é')); // 15 var_dump(strripos('abcdéf12345abcdéf', 'é', -4)); // 4 var_dump(mb_strripos('abcdéf12345abcdéf', 'é')); // 11 var_dump(mb_strripos('abcdéf12345abcdéf', 'é', -4)); // 11 var_dump(grapheme_strripos('abcdéf12345abcdéf', 'é')); // 11 var_dump(grapheme_strripos('abcdéf12345abcdéf', 'é', -4)); // 11
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MLXKJ
function name:  (null)
number of ops:  46
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'strripos'
          2        SEND_VAL                                                 'abcd%C3%A9f12345abcd%C3%A9f'
          3        SEND_VAL                                                 '%C3%A9'
          4        DO_ICALL                                         $0      
          5        SEND_VAR                                                 $0
          6        DO_ICALL                                                 
    4     7        INIT_FCALL                                               'var_dump'
          8        INIT_FCALL                                               'strripos'
          9        SEND_VAL                                                 'abcd%C3%A9f12345abcd%C3%A9f'
         10        SEND_VAL                                                 '%C3%A9'
         11        SEND_VAL                                                 -4
         12        DO_ICALL                                         $2      
         13        SEND_VAR                                                 $2
         14        DO_ICALL                                                 
    6    15        INIT_FCALL                                               'var_dump'
         16        INIT_FCALL                                               'mb_strripos'
         17        SEND_VAL                                                 'abcd%C3%A9f12345abcd%C3%A9f'
         18        SEND_VAL                                                 '%C3%A9'
         19        DO_ICALL                                         $4      
         20        SEND_VAR                                                 $4
         21        DO_ICALL                                                 
    7    22        INIT_FCALL                                               'var_dump'
         23        INIT_FCALL                                               'mb_strripos'
         24        SEND_VAL                                                 'abcd%C3%A9f12345abcd%C3%A9f'
         25        SEND_VAL                                                 '%C3%A9'
         26        SEND_VAL                                                 -4
         27        DO_ICALL                                         $6      
         28        SEND_VAR                                                 $6
         29        DO_ICALL                                                 
    9    30        INIT_FCALL                                               'var_dump'
         31        INIT_FCALL_BY_NAME                                       'grapheme_strripos'
         32        SEND_VAL_EX                                              'abcd%C3%A9f12345abcd%C3%A9f'
         33        SEND_VAL_EX                                              '%C3%A9'
         34        DO_FCALL                                      0  $8      
         35        SEND_VAR                                                 $8
         36        DO_ICALL                                                 
   10    37        INIT_FCALL                                               'var_dump'
         38        INIT_FCALL_BY_NAME                                       'grapheme_strripos'
         39        SEND_VAL_EX                                              'abcd%C3%A9f12345abcd%C3%A9f'
         40        SEND_VAL_EX                                              '%C3%A9'
         41        SEND_VAL_EX                                              -4
         42        DO_FCALL                                      0  $10     
         43        SEND_VAR                                                 $10
         44        DO_ICALL                                                 
         45      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
185.14 ms | 1400 KiB | 22 Q