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  1. <?php
  2.  
  3. $valid = [
  4. 	'%u003c%u0073%u0063%u0072%u0069%u0070%u0074%u003e',
  5. 	'%u003c',
  6. 	'%u0046%u005c',
  7. ];
  8.  
  9. $invalid = [
  10. 	'asd',
  11. 	'%a003da',
  12. 	'%k41ad',
  13. 	'Бла бла бла',
  14. 	'%u003c%u0073%u0063%',
  15. 	'%u003c%u0073ASFQ%u0063',
  16. ];
  17.  
  18.  
  19. print("--- valid\n");
  20. foreach ($valid as $value) {
  21. 	print("`$value` ".((preg_match ('/^(?:%u00[\da-z]{2})+$/' , $value, $matches)) ? 'valid' : 'invalid')."\n");
  22. }
  23. print("--- invalid\n");
  24. foreach ($invalid as $value) {
  25. 	print("`$value` ".((preg_match ('/^(?:%u00[\da-z]{2})+$/' , $value, $matches)) ? 'valid' : 'invalid')."\n");
  26. }
  27.  
  28.  
Success #stdin #stdout 0.01s 20520KB
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stdin
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Standard input is empty
stdout
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--- valid`%u003c%u0073%u0063%u0072%u0069%u0070%u0074%u003e` valid
`%u003c` valid
`%u0046%u005c` valid
--- invalid`asd` invalid
`%a003da` invalid
`%k41ad` invalid
`Бла бла бла` invalid
`%u003c%u0073%u0063%` invalid
`%u003c%u0073ASFQ%u0063` invalid
https://ideone.com/b0LZMe
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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