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<?php /*$pattern = "/^[a-zA-Z0-9._-]+@[a-zA-Z0-9-]+\.[a-zA-Z.]{2,5}$/";*/ $pattern = "/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/"; $replacement = "**************"; echo preg_replace($pattern, $replacement, "I want to replace this.is@email.com with stars"); echo "\n"; echo preg_replace("/a/", "A", "I want to capitalise all A's");
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/r9XhS
function name:  (null)
number of ops:  16
compiled vars:  !0 = $pattern, !1 = $replacement
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, '%2F%5E%5B_a-z0-9-%5D%2B%28%5C.%5B_a-z0-9-%5D%2B%29%2A%40%5Ba-z0-9-%5D%2B%28%5C.%5Ba-z0-9-%5D%2B%29%2A%28%5C.%5Ba-z%5D%7B2%2C4%7D%29%24%2F'
    5     1        ASSIGN                                                   !1, '%2A%2A%2A%2A%2A%2A%2A%2A%2A%2A%2A%2A%2A%2A'
    6     2        INIT_FCALL                                               'preg_replace'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        SEND_VAL                                                 'I+want+to+replace+this.is%40email.com+with+stars'
          6        DO_ICALL                                         $4      
          7        ECHO                                                     $4
    7     8        ECHO                                                     '%0A'
    8     9        INIT_FCALL                                               'preg_replace'
         10        SEND_VAL                                                 '%2Fa%2F'
         11        SEND_VAL                                                 'A'
         12        SEND_VAL                                                 'I+want+to+capitalise+all+A%27s'
         13        DO_ICALL                                         $5      
         14        ECHO                                                     $5
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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