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  1. <?php
  2.  
  3. $text = '  Bla   bla  bla blabla  bla 
  4.   Bla   bla  bla blabla  bla  
  5.   blabla';
  6.  
  7. echo preg_replace('/^ +| +$|( ) +/m', '$1', $text);
Success #stdin #stdout 0s 82944KB
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stdin
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Standard input is empty
stdout
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Bla bla bla blabla bla
Bla bla bla blabla bla
blabla
https://ideone.com/M8wuSg
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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