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  1. <?php
  2.  
  3. $text = '_это_та_самая_строка.окончание';
  4. preg_match_all('/_([^_.]+)\./u', $text, $matches);
  5. print_r( $matches[1] );
  6. preg_match_all('/_\K[^_.]+(?=\.)/u', $text, $matches);
  7. print_r( $matches[0] );
Success #stdin #stdout 0s 82944KB
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stdin
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Standard input is empty
stdout
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Array
(
    [0] => строка
)
Array
(
    [0] => строка
)
https://ideone.com/0vSfvF
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
secret

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