php或html显示来自textarea的POST

I have a textarea with text entered on multiple lines.

I submit that using POST to my PHP file...but there are problems. I think they are to do with and in the text area because I am using "enter" to make a new line.

Is there a way using PHP or html I can see what exactly the POST is sending to my php, including the and other extra things?

You can try removing the and with something like:

$string = str_replace("
",'',$string);

Firebug is also a good tool to see what is going on.

Check the function nl2br.