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  1. <?php
  2.  
  3. function validateAlphAtleastTwoChars($val) {
  4.     if(!preg_match('/^[a-zA-Z]{2,}$/', $val))
  5.         return false;
  6.     return true;
  7. }
  8.  
  9. $names = [
  10. 	'123',
  11. 	'James',
  12. 	'Artie2',
  13. 	'<script>alert("Hello);</script>',
  14. 	'   ',
  15. 	'Li',
  16. 	'I'
  17. 	];
  18.  
  19. foreach( $names as $name){
  20. 	echo "{$name} is only alphanumeric and at least 2 characters " . json_encode(validateAlphAtleastTwoChars($name));
  21. 	echo "\n";
  22. }
  23.  
  24.  
  25.  
Success #stdin #stdout 0.02s 23752KB
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Standard input is empty
stdout
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123 is only alphanumeric and at least 2 characters false
James is only alphanumeric and at least 2 characters true
Artie2 is only alphanumeric and at least 2 characters false
<script>alert("Hello);</script> is only alphanumeric and at least 2 characters false
    is only alphanumeric and at least 2 characters false
Li is only alphanumeric and at least 2 characters true
I is only alphanumeric and at least 2 characters false
https://ideone.com/W1GrhZ
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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