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  1. <?php
  2.     $your_string = 'idiot@idiot.com';
  3.     test($your_string);
  4.     $your_string = str_replace('@', '(at)', $your_string);
  5.     test($your_string);
  6.     function test($your_string){
  7.         if(preg_match("/[A-Z0-9._%+-]+(@|\(at\))[A-Z0-9.-]{3,65}\.[A-Z]{2,4}/i", $your_string)){
  8.             echo $your_string . ': true  ';
  9.         }else{
  10.             echo $your_string . ': false  ';
  11.         }
  12.     }
Success #stdin #stdout 0.01s 20568KB
comments (?)
stdin 
Standard input is empty
stdout 
idiot@idiot.com: true  idiot(at)idiot.com: true
https://ideone.com/6U6Y3q
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
public

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