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  1. <?php
  2.  
  3. if (
  4.   preg_match_all(
  5.     '~(?(DEFINE)(?<content>\w+))(?><(?&content)>|\[(?&content)\]|\((?&content)\))~',
  6.     '<123> [234] (45) 6 (<78>)',
  7.     $m
  8.   )
  9. )
  10. print_r($m);
  11.  
  12. ?>
Success #stdin #stdout 0.02s 13064KB
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stdin
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Standard input is empty
stdout
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Array
(
    [0] => Array
        (
            [0] => <123>
            [1] => [234]
            [2] => (45)
            [3] => <78>
        )

    [content] => Array
        (
            [0] => 
            [1] => 
            [2] => 
            [3] => 
        )

    [1] => Array
        (
            [0] => 
            [1] => 
            [2] => 
            [3] => 
        )

)
https://ideone.com/F2zYM
language:
PHP (php 7.3.5)
created:
13 years ago
visibility:
public

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