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  1. <?php
  2. $data = '[xxx] test test[xxx]foobar
  3. more data
  4. [xxx] more data
  5. [xxx] other data []:foo bar
  6. more data here
  7. [xxx] 1234';
  8.  
  9. foreach(preg_split('/^(?=\[xxx] )/m', $data) as $el) {
  10. 	echo preg_replace('/\n(?!$)/', '\\n', $el);
  11. }
Success #stdin #stdout 0.03s 26128KB
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stdin
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Standard input is empty
stdout
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[xxx] test test[xxx]foobar\nmore data
[xxx] more data
[xxx] other data []:foo bar\nmore data here
[xxx] 1234
https://ideone.com/HUpkPQ
language:
PHP (php 7.3.5)
created:
3 years ago
visibility:
secret

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