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  1. <?php
  2.  
  3. $text = 'text [date] text [date|Y-m-d] text [date|Y-m-d|today] text ...';
  4.  
  5. preg_match_all('/\[[^\[\]]+\]/', $text, $tags);
  6. foreach ($tags[0] as $tag) {
  7.   print "$tag\n";
  8.   preg_match_all('/(?<=^\[|\|)[^|\[\]]*(?=\||\]$)/', $tag, $dates);
  9.   foreach ($dates[0] as $date) {
  10.     print "$date\n";
  11.   }
  12. }
Success #stdin #stdout 0.02s 24032KB
comments (?)
stdin 
Standard input is empty
stdout 
[date]
date
[date|Y-m-d]
date
Y-m-d
[date|Y-m-d|today]
date
Y-m-d
today
https://ideone.com/N1W9ij
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
secret

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