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  1. <?php
  2. $text ='around background background background background';
  3. $non_repeat = preg_replace("/\b(\w+)(?:\s\\1)+/i", "$1", $text);
  4. echo $non_repeat;
  5. ?>
Success #stdin #stdout 0.01s 20568KB
comments (?)
stdin 
Standard input is empty
stdout 
around background
https://ideone.com/Rf30D9
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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