How can i define a PHP variable by the content of an HTML tag?

Question

HTML

<p id="a" name="a"></p>

Javascript

document.getElementById("a").innerHTML=price;

If price is a variable how do I make a php variable that is = to the result that is placed in the HTML of id "a" i?

$price = $_POST['a'];

when echoed this variable comes up blank, and yes I do have a form set up that is handled by a PHP page.

You asked an extremely similar question 25 minutes ago, and I told you what you would need to do: [Your Question](http://stackoverflow.com/questions/16155008/i-need-to-echo-results-that-are-rendered-inside-a-span-tag) — Unexpected Pair of Colons, Apr 22 '13 at 19:45

score 3 · Answer 1 · edited Apr 22 '13 at 19:50

3

That's not how forms work.

The browser will only send values of form controls (<input>, <select>, <textarea>) to the server.
It won't send values of arbitrary named elements. (in fact, that name="a" is invalid HTML)

Instead, you should use an <input type="hidden" name="a" value="" />, and set the value attribute of this <input> tag to the value you want PHP to get.

edited Apr 22 '13 at 19:50

nickb

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answered Apr 22 '13 at 19:42

SLaks

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score 0 · Answer 2 · edited May 23 '17 at 12:18

0

I guess, you want only to change the values in HTML elements. For that you need a XML parser (i.d). I think shamittimar's post may help you. He does exactly what you want.

edited May 23 '17 at 12:18

Community

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answered Apr 22 '13 at 19:44

Matt3o12

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How can i define a PHP variable by the content of an HTML tag?

2 Answers2