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  1. <?php
  2.  
  3. // Здесь ваша строка
  4. $string = '=?koi8-r?B?3NTPINTFzcE=?=';
  5.  
  6. $pattern = '@(?<=\=\?)'
  7.          . '(?<encoding>[a-zA-Z0-9-]++)\?'
  8.          . 'B\?(?<base64_string>[a-zA-Z0-9=]++)'
  9.          . '(?=\?\=)@u';
  10. preg_match($pattern, $string, $m);
  11. if ($m['encoding'] && $m['base64_string']) {
  12. 	echo iconv($m['encoding'], 'UTF-8', base64_decode($m['base64_string']));
  13. }
Success #stdin #stdout 0.01s 20608KB
comments (?)
stdin
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Standard input is empty
stdout
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это тема
https://ideone.com/SG0azw
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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