How to explode with double line break in PHP?

Question

I want to explode a text to separate paragraphs and tried

$array = explode("\n\n", $str");

but it is not a practical approach since double line breaks can be in the form of

\n \n
\r\n\r\n

or other formats and \n\n is not always the case.

Is there a safe approach to explode double line breaks (or ideally all multi-line breaks)?

Answer 1

preg_split : regex explode

$array = preg_split("/(\n\s\n){1,}|(\n){1,}|(\r\n){1,}/", $str);

(\n\s\n){1,}: Line break, Space, Line break, unlimited combo.

(\n){1,}: Line break, unlimited combo.

(\r\n){1,}: Line break, unlimited combo.

/: Enclosing the parameters with forward slash delminators.

If you want to replace it with <br>: nl2br :

$str = nl2br($str);