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  1. <?php
  2.  
  3. echo preg_replace(
  4.   '/(^|\s)#([a-zA-Zа-яёА-ЯЁ]+)/u',
  5.   '\1<a href="/search/query=\2">#\2</a>',
  6.   'just a #text #ёжик побежал'
  7. );
Success #stdin #stdout 0.02s 24536KB
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stdin
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Standard input is empty
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just a <a href="/search/query=text">#text</a> <a href="/search/query=ёжик">#ёжик</a> побежал
https://ideone.com/QuzA3s
language:
PHP (php 7.3.5)
created:
4 years ago
visibility:
public

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