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Change PHP Variable Through HTML?

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Oct 20.2009

Hello i am trying to figure out how to change a php variable when a button or link is clicked on the webpage and then reload the page.

i tried something like this

[CODE]<a href=”<?php $var=1 ?>”>button</a>[/CODE]

but it did not work.

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PHP

8 Comments(s) ↴

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@MindzaiOct 20.2009 — Every time the page loads the script will start from fresh and not remember any values from last time. Probably the easiest way of persisting data accross pages is via a session.
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@MaaaTtYauthorOct 20.2009 — damn. i also realised what i was doing was only being executed before the page loaded not when a button was clicked ( i dont even know if thats possible). anyways, this is for a project and im not allowed to use a session or GET and POST.
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@criterion9Oct 20.2009 — Are you supposed to use javascript or perhaps a cookie then?
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@MindzaiOct 20.2009 — i also realised what i was doing was only being executed before the page loaded not when a button was clicked[/QUOTE]

Yes, PHP is a server side language. As suggested, it sounds like you'll need to use a client side language such as javascript.
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@YelgnidrocOct 20.2009 — I can't see how you can change a [B]php variable[/B] without using a session, GET or POST. Well, not in any useful way.

You could save the php variable to a database / file / cookie, click a button that will reload the page (or re-direct) and then read back from the database / file /cookie and increment it. This obviously has limitations!!

I don't think that javascript can change php variables.
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@MindzaiOct 21.2009 — I don't think that javascript can change php variables.[/QUOTE]

Not as such, but it can read/write from the same cookies as a PHP script.
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@ehimeOct 21.2009 — I think the best way would be a post, but then

again I don't know what you're trying to change

it to or from?
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@ssystemsOct 21.2009 — I would go for post/session as well.But without a clearer view of what you're trying to achieve we can't really help a lot. Good Luck.
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