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<?php echo (int)!preg_match('/[a-z0-9:;,!\'\s*.?()"-]/im', '@3'); //0 проверка отсуствия разрешенных символов echo (int)!preg_match('/^[a-z0-9:;,!\'\s*.?()"-]+$/i', "aaa\nb@bb\nccc"); //1 присуствуют недопустимые символы во всем тексте echo (int)!preg_match('/^[a-z0-9:;,!\'\s*.?()"-]+$/i', "a@aa\nbbb\nccc"); //1 присуствуют недопустимые символы во всем тексте echo (int)!preg_match('/^[a-z0-9:;,!\'\s*.?()"-]+$/im', "aaa\nb@bb\nccc"); //0 есть строка полностью из допустимых символов (aaa) echo (int)!preg_match('/^[a-z0-9:;,!\'\s*.?()"-]+$/im', "a@aa\nbbb\nccc"); //0 есть строка полностью из допустимых символов (bbb) echo (int)!preg_match_all('/^[a-z0-9:;,!\'\s*.?()"-]+$/i', "aaa\nb@bb\nccc", $match); //1 во всем тексте есть недопусимые символы echo (int)!preg_match_all('/^[a-z0-9:;,!\'\s*.?()"-]+$/im', "aaa\nb@bb\nccc", $match); //0 есть строки полностью из допустимых символов (aaa,ccc) echo preg_replace('/^[a-z0-9:;,!\'\s*.?()"-]+$/i', '<$0>' , "aaa\nb@bb\nccc", 1); //покажет что находит 2 пункт (1) echo preg_replace('/^[a-z0-9:;,!\'\s*.?()"-]+$/im', '<$0>' , "aaa\nb@bb\nccc", 1); //покажет что находит 4 пункт (0) echo (int)preg_match('/[^a-z0-9:;,!\'\s*.?()"-]/i', "aaa\nb@bb\nccc"); //1 лучше так проверять
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/q8ngs
function name:  (null)
number of ops:  72
compiled vars:  !0 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2F%5Ba-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2Fim'
          2        SEND_VAL                                                 '%403'
          3        DO_ICALL                                         $1      
          4        BOOL_NOT                                         ~2      $1
          5        CAST                                          4  ~3      ~2
          6        ECHO                                                     ~3
    3     7        INIT_FCALL                                               'preg_match'
          8        SEND_VAL                                                 '%2F%5E%5Ba-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2B%24%2Fi'
          9        SEND_VAL                                                 'aaa%0Ab%40bb%0Accc'
         10        DO_ICALL                                         $4      
         11        BOOL_NOT                                         ~5      $4
         12        CAST                                          4  ~6      ~5
         13        ECHO                                                     ~6
    4    14        INIT_FCALL                                               'preg_match'
         15        SEND_VAL                                                 '%2F%5E%5Ba-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2B%24%2Fi'
         16        SEND_VAL                                                 'a%40aa%0Abbb%0Accc'
         17        DO_ICALL                                         $7      
         18        BOOL_NOT                                         ~8      $7
         19        CAST                                          4  ~9      ~8
         20        ECHO                                                     ~9
    5    21        INIT_FCALL                                               'preg_match'
         22        SEND_VAL                                                 '%2F%5E%5Ba-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2B%24%2Fim'
         23        SEND_VAL                                                 'aaa%0Ab%40bb%0Accc'
         24        DO_ICALL                                         $10     
         25        BOOL_NOT                                         ~11     $10
         26        CAST                                          4  ~12     ~11
         27        ECHO                                                     ~12
    6    28        INIT_FCALL                                               'preg_match'
         29        SEND_VAL                                                 '%2F%5E%5Ba-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2B%24%2Fim'
         30        SEND_VAL                                                 'a%40aa%0Abbb%0Accc'
         31        DO_ICALL                                         $13     
         32        BOOL_NOT                                         ~14     $13
         33        CAST                                          4  ~15     ~14
         34        ECHO                                                     ~15
    7    35        INIT_FCALL                                               'preg_match_all'
         36        SEND_VAL                                                 '%2F%5E%5Ba-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2B%24%2Fi'
         37        SEND_VAL                                                 'aaa%0Ab%40bb%0Accc'
         38        SEND_REF                                                 !0
         39        DO_ICALL                                         $16     
         40        BOOL_NOT                                         ~17     $16
         41        CAST                                          4  ~18     ~17
         42        ECHO                                                     ~18
    8    43        INIT_FCALL                                               'preg_match_all'
         44        SEND_VAL                                                 '%2F%5E%5Ba-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2B%24%2Fim'
         45        SEND_VAL                                                 'aaa%0Ab%40bb%0Accc'
         46        SEND_REF                                                 !0
         47        DO_ICALL                                         $19     
         48        BOOL_NOT                                         ~20     $19
         49        CAST                                          4  ~21     ~20
         50        ECHO                                                     ~21
    9    51        INIT_FCALL                                               'preg_replace'
         52        SEND_VAL                                                 '%2F%5E%5Ba-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2B%24%2Fi'
         53        SEND_VAL                                                 '%3C%240%3E'
         54        SEND_VAL                                                 'aaa%0Ab%40bb%0Accc'
         55        SEND_VAL                                                 1
         56        DO_ICALL                                         $22     
         57        ECHO                                                     $22
   10    58        INIT_FCALL                                               'preg_replace'
         59        SEND_VAL                                                 '%2F%5E%5Ba-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2B%24%2Fim'
         60        SEND_VAL                                                 '%3C%240%3E'
         61        SEND_VAL                                                 'aaa%0Ab%40bb%0Accc'
         62        SEND_VAL                                                 1
         63        DO_ICALL                                         $23     
         64        ECHO                                                     $23
   12    65        INIT_FCALL                                               'preg_match'
         66        SEND_VAL                                                 '%2F%5B%5Ea-z0-9%3A%3B%2C%21%27%5Cs%2A.%3F%28%29%22-%5D%2Fi'
         67        SEND_VAL                                                 'aaa%0Ab%40bb%0Accc'
         68        DO_ICALL                                         $24     
         69        CAST                                          4  ~25     $24
         70        ECHO                                                     ~25
         71      > RETURN                                                   1

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