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  1. <?php
  2.  
  3. $re = '/(.*?)текст(.*)/iu'; 
  4. $str = 'Текст
  5. ТЕКСТ
  6. ТексТ'; 
  7.  
  8. preg_match_all($re, $str, $matches, PREG_SET_ORDER);
  9. print_r($matches);
Success #stdin #stdout 0.03s 52480KB
comments (?)
stdin 
Standard input is empty
stdout 
Array
(
    [0] => Array
        (
            [0] => Текст
            [1] => 
            [2] => 
        )

    [1] => Array
        (
            [0] => ТЕКСТ
            [1] => 
            [2] => 
        )

    [2] => Array
        (
            [0] => ТексТ
            [1] => 
            [2] => 
        )

)
https://ideone.com/5UuQSE
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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