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  1. <?php
  2.  
  3. $re = "/^[a-z0-9_\\.\\-]+@[a-z0-9_\\.\\-]*[a-z0-9_\\-]+\\.[a-z]{2,4}/"; 
  4. $str = "1231@asdf.com"; 
  5.  
  6. if (!preg_match($re, $str, $matches) ){
  7. 	echo 'false';
  8. }
  9. echo 'email ok';
  10.  
Success #stdin #stdout 0.02s 52480KB
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stdin
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Standard input is empty
stdout
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email ok
https://ideone.com/6iqsnn
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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