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  1. <?php
  2.  
  3. $s = '<sup> 1, 2, 3- 124</sup> 2345';
  4. echo preg_replace('~(?:\G(?!\A)[^\d<]*|<sup>[^\d<]*)\K\d+~', '{{{$0}}}', $s);
Success #stdin #stdout 0.01s 52488KB
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Standard input is empty
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<sup> {{{1}}}, {{{2}}}, {{{3}}}- {{{124}}}</sup> 2345
https://ideone.com/KPZdNp
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
secret

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