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  1. <?php
  2.  
  3. $re = '~(?<!\+)\+\+(\w+)\+\+(?!\+)~'; 
  4. $str = "I have ++VAR++ and  +++++++++++ and +++text+++++ and ++ANOTHER_VAR++."; 
  5. preg_match_all($re, $str, $matches);
  6. print_r($matches);
Success #stdin #stdout 0.02s 52432KB
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stdin
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Standard input is empty
stdout
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Array
(
    [0] => Array
        (
            [0] => ++VAR++
            [1] => ++ANOTHER_VAR++
        )

    [1] => Array
        (
            [0] => VAR
            [1] => ANOTHER_VAR
        )

)
https://ideone.com/riy5mj
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
secret

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