I'm using str_replace and it's not working correctly.
I have a text area, which input is sent with a form. When the data is received by the server, I want to change the new lines to ",".
$teams = $_GET["teams"];
$teams = str_replace("\n",",",$teams);
To expand on Waage's response, you could use an array to replace both sets of characters
$teams = str_replace(array("\r\n", "\n"),",",$teams); echo $teams;
This should handle both items properly, as a single
\n is valid and would not get caught if you were just replacing