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<?php $user_email = 'asd@toyota.com'; $re_to = "[^@]+@[^@]+"; //"[^@]+@[^@]*toyota[^@]*\.[^@]+"; $re_to = ".+"; $regex = preg_quote($re_to, '#'); $res = preg_match("$regex#i", $user_email); echo $res ? '1' : '0';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 16, Position 2 = 18
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 19
Branch analysis from position: 19
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Ae2EE
function name:  (null)
number of ops:  21
compiled vars:  !0 = $user_email, !1 = $re_to, !2 = $regex, !3 = $res
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ASSIGN                                                   !0, 'asd%40toyota.com'
    7     1        ASSIGN                                                   !1, '%5B%5E%40%5D%2B%40%5B%5E%40%5D%2B'
    8     2        ASSIGN                                                   !1, '.%2B'
   10     3        INIT_FCALL                                               'preg_quote'
          4        SEND_VAR                                                 !1
          5        SEND_VAL                                                 '%23'
          6        DO_ICALL                                         $7      
          7        ASSIGN                                                   !2, $7
   12     8        INIT_FCALL                                               'preg_match'
          9        NOP                                                      
         10        FAST_CONCAT                                      ~9      !2, '%23i'
         11        SEND_VAL                                                 ~9
         12        SEND_VAR                                                 !0
         13        DO_ICALL                                         $10     
         14        ASSIGN                                                   !3, $10
   14    15      > JMPZ                                                     !3, ->18
         16    >   QM_ASSIGN                                        ~12     '1'
         17      > JMP                                                      ->19
         18    >   QM_ASSIGN                                        ~12     '0'
         19    >   ECHO                                                     ~12
         20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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