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  1. <?php
  2.  
  3. echo preg_replace('/(\d+) \+ (\d+)/', '$1/$2', implode(" + ", range(1, 12)));
Success #stdin #stdout 0.02s 24328KB
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stdin
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Standard input is empty
stdout
copy 
1/2 + 3/4 + 5/6 + 7/8 + 9/10 + 11/12
https://ideone.com/dKUIwc
language:
PHP (php 7.3.5)
created:
4 years ago
visibility:
public

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