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  1. <?php
  2.  
  3. $string = '123456789mytext23424kjfjhkjdhfgkj123456789mytext nmfdfmng';
  4. $pattern ='/([0-9]{9})([a-zA-Zа-яА-Я]+)/i';
  5. $replacement = '123412341www';
  6.  
  7. echo preg_replace($pattern, $replacement, $string);
Success #stdin #stdout 0.02s 52472KB
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stdin
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Standard input is empty
stdout
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123412341www23424kjfjhkjdhfgkj123412341www nmfdfmng
https://ideone.com/IOjdNI
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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