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  1. <?php
  2.  
  3. $string = 'até, atenção, Hipótese, você, português, café, órgão';
  4.  
  5. preg_match('~aten..o~', $string, $match);
  6. print_r($match);
  7.  
  8. preg_match('/aten..o/u', $string, $match);
  9. print_r($match);
  10.  
Success #stdin #stdout 0.02s 52432KB
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stdin
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Standard input is empty
stdout
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Array
(
)
Array
(
    [0] => atenção
)
https://ideone.com/0MsPqG
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
secret

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