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  1. <?php
  2. $string = "Hello Word";
  3. $string = preg_replace('/ /', '', $string);
  4. echo $string;
Success #stdin #stdout 0.01s 20520KB
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Standard input is empty
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HelloWord
https://ideone.com/RvYkdA
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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