What is the simplest/easiest way to display line of text only when printing a webpage using PHP?

Question

I have a line of text I would like to display only when a webpage is being printed. Is it possible to only display this line when printing the page or doing a print preview using PHP in some way?

Basically, I want to print a page without the print headers, but would like to include the page's URL within the page's content when it is printed.

Answer 1

You can create a CSS stylesheet that only applies to Print media.

For example:

                                             Notice the media----v
<link rel="stylesheet" href="print.css" type="text/css" media="print" />

In your regular CSS stylesheet, just hide that element:

p.print-notice {
    visibility: hidden;
}

And in your print CSS stylesheet, bring it up again:

p.print-notice {
    visibility: visible;
}

---

Note: Setting visibility to hidden, only hides the element but does not remove it from the document flow. Use the Display property if you want to remove it from flow.

Answer 2

You might have more luck doing this with CSS and just showing or hiding the element(s) when printing using "@media print". A little more information is here: http://webdesign.about.com/cs/css/qt/tipcssatmedia.htm but you can probably find more by doing some searches for CSS media types.