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  1. <?php
  2. $words = 'asdf asdf aewrw werer ewrew';
  3.  
  4. $str = preg_replace('#\s+#',"','",trim($words));     echo "'" . $str . '"';
  5.  
Success #stdin #stdout 0.01s 20520KB
comments (?)
stdin 
Standard input is empty
stdout 
'asdf','asdf','aewrw','werer','ewrew"
https://ideone.com/T5hKEa
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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