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  1. <?php
  2. $name = "Грозный";
  3.  
  4. if (!preg_match('/^[a-zA-Zа-яА-Я\-\'\ ]{1,20}$/u', $name, $matches)) {
  5.             $error = "Incorrect name type: name contains invalid characters (valid characters is english or russian letters, hyphens, apostrophes and spaces).";
  6. }
  7.  
  8. echo $error;
Success #stdin #stdout #stderr 0.02s 52472KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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PHP Notice:  Undefined variable: error in /home/ADRkT8/prog.php on line 8
https://ideone.com/D1d0D8
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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