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  1. <?php
  2.  
  3. $tweet = "RT @foRTunemagazine Comment here RT @foo Blah";
  4. $tag = ' {RT} ';
  5. $result = preg_replace("/RT(?=\s)/", $tag, $tweet);
  6.  
  7. var_dump($result);
Success #stdin #stdout 0.02s 13112KB
comments (?)
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Standard input is empty
stdout
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string(53) " {RT}  @foRTunemagazine Comment here  {RT}  @foo Blah"
https://ideone.com/P7dxm
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
public

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