PHP: Store PHP variable in page to use in POST

Question

Currently I put a constant on my webpage using PHP which I then send, with Ajax, to my POST function. However, this leaves it susceptible to hacking (the user could change the variable with Firebug), so is there a way to store the variable in the PHP of the page and then access it later on, in the POST method (or is the GET variable of the page still available in the POST function, since that's where I get the variable from)?

If your variable is not changeable on the front end, there's no point passing it from there; just have it available in your script as a php variable. If this isn't what you mean, it might be worth rewording your question to be more specific. — Simon Brahan
– Simon Brahan, Commented Sep 29, 2014 at 11:50
there seems to be no need to store it in the browser anyways, so shy not declare it in the php script directly? — Lokomotywa
– Lokomotywa, Commented Sep 29, 2014 at 11:51

Avinash Babu · Accepted Answer · 2014-09-29 12:22:39Z

2

I think what you have wanted is to store the post value to use it later.

Here you would need to use $_SESSION

You can do it like

session_start();

// Save variables into session

$_SESSION['thevalue'] = $_POST['value'];

answered Sep 29, 2014 at 12:22

Avinash Babu

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1 Comment

StrongJoshua Over a year ago

I was thinking of that, I just wasn't sure if it's the best choice.

tfrascaroli · Accepted Answer · 2014-09-29 12:24:51Z

0

If you wish to store between successive calls from the same user use the follwing:

<?php
    session_start();
    $_SESSION["your variable/constant"] = yourvaule;

Now use the variable as needed, accessing it as $_SESSION["your variable/constant"]

Hope it helps, and it's what you're asking.

answered Sep 29, 2014 at 12:24

tfrascaroli

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