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  1. <?php
  2.  
  3. // your code goes here
  4. echo preg_replace('/(.)(.)/u', '$2', 'а'), PHP_EOL;
  5. echo preg_replace('/(.)(.)/u', '$2', 'аб'), PHP_EOL;
  6. echo preg_replace('/(.)(.)/u', '$2', 'абв'), PHP_EOL;
  7. echo preg_replace('/(.)(.)/u', '$2', 'абвг'), PHP_EOL;
  8. echo preg_replace('/(.)(.)/u', '$2', 'абвгд'), PHP_EOL;
  9. echo preg_replace('/(.)(.)/u', '$2', 'абвгде'), PHP_EOL;
Success #stdin #stdout 0s 82944KB
comments (?)
stdin
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Standard input is empty
stdout
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а
б
бв
бг
бгд
бге
https://ideone.com/5nrKcK
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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