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  1. <?php
  2.  
  3. $re = '/(\w+)/u'; 
  4. $str = 'Катя, Валя, Таня, Настя'; 
  5. $subst = '<a href=\"$1\">$1</a>'; 
  6.  
  7. echo preg_replace($re, $subst, $str);
Success #stdin #stdout 0.02s 52472KB
comments ()
stdin 
Standard input is empty
stdout 
<a href=\"Катя\">Катя</a>, <a href=\"Валя\">Валя</a>, <a href=\"Таня\">Таня</a>, <a href=\"Настя\">Настя</a>
https://ideone.com/yaqeXy
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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