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  1. <?php
  2.  
  3. $re = '/#\w+/u'; 
  4. $str = "This is my testing string, look at the hashtags and see that the multibyte ones are ignored. #php #regex #my #multibyte #åäö #öl #läsa #drickaöl #tags #are #being #ignored"; 
  5. preg_match_all($re, $str, $matches);
  6. print_r($matches[0]);
Success #stdin #stdout 0.02s 24192KB
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stdin
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Standard input is empty
stdout
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Array
(
    [0] => #php
    [1] => #regex
    [2] => #my
    [3] => #multibyte
    [4] => #åäö
    [5] => #öl
    [6] => #läsa
    [7] => #drickaöl
    [8] => #tags
    [9] => #are
    [10] => #being
    [11] => #ignored
)
https://ideone.com/bZonDV
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
secret

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