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  1. <?php
  2.  
  3. $txt= <<<TXT
  4. post text
  5. <!--quote-->quote1<!--quote-->sub-quote1<!--/quote--><!--/quote-->
  6. post text
  7. <!--quote-->quote2<!--/quote-->
  8. post text
  9. TXT;
  10.  
  11. $result = preg_split('%(<!--.*?-->)%sim', $txt,-1,PREG_SPLIT_DELIM_CAPTURE);
  12.  
  13. $nested = 0;
  14. $set = [];
  15. foreach($result as $r) {
  16. 	if($r == '<!--quote-->') { $nested += 1;}
  17. 	elseif($r == '<!--/quote-->') { $nested -= 1; }
  18. 	else {
  19. 		$set[] = [$r,$nested];
  20. 	}
  21. }
  22.  
  23. var_export($set);
Success #stdin #stdout 0.03s 52480KB
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Standard input is empty
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array (
  0 => 
  array (
    0 => 'post text
',
    1 => 0,
  ),
  1 => 
  array (
    0 => 'quote1',
    1 => 1,
  ),
  2 => 
  array (
    0 => 'sub-quote1',
    1 => 2,
  ),
  3 => 
  array (
    0 => '',
    1 => 1,
  ),
  4 => 
  array (
    0 => '
post text
',
    1 => 0,
  ),
  5 => 
  array (
    0 => 'quote2',
    1 => 1,
  ),
  6 => 
  array (
    0 => '
post text',
    1 => 0,
  ),
)
https://ideone.com/siihcl
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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