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<?php $user_email = 'asd@toyota.com'; $re_to = "[^@]+@[^@]+"; //"[^@]+@[^@]*toyota[^@]*\.[^@]+"; $regex = preg_quote($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 = 15, Position 2 = 17
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 18
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/r6a5I
function name:  (null)
number of ops:  20
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'
    9     2        INIT_FCALL                                               'preg_quote'
          3        SEND_VAR                                                 !1
          4        SEND_VAL                                                 '%23'
          5        DO_ICALL                                         $6      
          6        ASSIGN                                                   !2, $6
   11     7        INIT_FCALL                                               'preg_match'
          8        NOP                                                      
          9        FAST_CONCAT                                      ~8      !2, '%23i'
         10        SEND_VAL                                                 ~8
         11        SEND_VAR                                                 !0
         12        DO_ICALL                                         $9      
         13        ASSIGN                                                   !3, $9
   13    14      > JMPZ                                                     !3, ->17
         15    >   QM_ASSIGN                                        ~11     '1'
         16      > JMP                                                      ->18
         17    >   QM_ASSIGN                                        ~11     '0'
         18    >   ECHO                                                     ~11
         19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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