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  1. <?php
  2.  
  3. $str = "1234123412341234";
  4. echo chunk_split($str, 4, ' ');
Success #stdin #stdout 0.02s 13064KB
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stdin
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Standard input is empty
stdout
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1234 1234 1234 1234
https://ideone.com/WoGKa
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
public

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