PHP explode string with tags using UTF8 between them

Question

in php i want to explode string with tag using utf-8 between them, for example, in this text:

$content = \"فهرست اولhi my name is          


        

Answer 1

You can use preg_split to split the text by a regular expression, then array_filter to remove empty strings:

$arr = array_filter(preg_split('/(?=.*?<\/heading>)/', $contents), 'strlen');

It won't remove the tag, since it is in a look-ahead - a group construct that doesn't consume what it matched.

For example:

فهرست اولhi my name is mahdi  whats app فهرست دومhow are you

This should return:

array(
  [0] => "فهرست اولhi my name is mahdi  whats app ",
  [1] => "فهرست دومhow are you"
)

You can check this regex online: https://regex101.com/r/ITi7Lh/1
Or, if you prefer, see how PHP parses it: (the link doesn't seem to work on SO, you have to manually paste it): https://en.functions-online.com/preg_split.html?command={"pattern":"\/(?=.*?<\\\/heading>)\/","subject":"\u0641\u0647\u0631\u0633\u062a \u0627\u0648\u0644<\/heading>hi my name is mahdi whats app \u0641\u0647\u0631\u0633\u062a \u062f\u0648\u0645<\/heading>how are you","limit":-1}