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  1. <?php
  2.  
  3. $re = '/(?:\G(?!^)|(?=(?:[e-g]\d+)+c))[e-g]\d+/';
  4. $str = 'e123f654g933c and e123f654g933ce99f77g66c';
  5. preg_match_all($re, $str, $matches);
  6. print_r($matches[0]);
Success #stdin #stdout 0.01s 82816KB
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Standard input is empty
stdout
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Array
(
    [0] => e123
    [1] => f654
    [2] => g933
    [3] => e123
    [4] => f654
    [5] => g933
    [6] => e99
    [7] => f77
    [8] => g66
)
https://ideone.com/WTlbI0
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
secret

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