php \r and \n same thing?

Why have 2 functions that does the same thing? They both add a linebreak.

Any diffrence betw开发者_StackOverfloween them?

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This has nothing to do with PHP, and is a consequence of history :

• UNIX / Linux use \n for linebreaks
• Mac (before OSX) used \r
• And windows uses a combinaison of both

PHP has just kept that behavior -- so it can work with those different OSes and their files.

Also, note :

• Those are not functions : they are (special) characters
• They are not exactly the same thing :
  • \r is Carriage return
  • \n is Newline
• and, btw, those are another consequence of history : look at their names, and think about typewriters ;-)