PHP variables not passing between pages

I've done this hundreds of times before and for some reason today it's not working. Can anyone tell me why?

I have one page with a link as follows:

add.php?IDvalue=251

PHP:

The add.php page referenced in the URL begins with the following PHP:

$IDvalue=$_REQUEST['IDvalue'];

PHP:

The problem is, when I click on the link mentioned, the IDvalue does NOT pass to the add.php page as it should. Does anyone know what the problem might be? This way of passing variable values has always worked for me before today.

Thanks!
Brian

 

I figured it out, but I'll post the answer here if someone else ever has this problem.

I had the following incorrectly coded conditional statement immediately following the IDvalue=$_REQUEST['IDvalue'] code on my add.php page.

This conditional (missing double ==) somehow UNSET the IDvalue variable, though I'm not sure why a conditional statement (even when miswritten) would change the value of a variable.

 

you should using get

 

Thanks for the tip. I'll try it.

 

$number = 5; // assign a value: 5
$number == 5; // returns true

PHP:

Conditional statement or not, it'll still do it's job.