Array not reading right

[The14thGOD]

Working on a mini project, and when the page first loads it works correctly.

 

The link is domain.com?collapse=2,1,1

Once I click the link, and it refreshed, the link reads as: domain.com?collapse=,1,1

I'm not sure why... so heres the code b4 the beginning of the html tag:

<?php
$thispage = $_SERVER['PHP_SELF'];
$thispage .= "?collapse=";
//array
if (!$_GET['collapse']) {
	$array = array(1,1,1);
}else {
	$collapse = $_GET['collapse'];
	$array = explode(",", $_GET['collapse']);
	echo($array[0]);
}	
?>

 

code for the link:

<?php
					$thispage2 = "$thispage";
					if ($array[0] == 1) {
						$sub0 = 2;
						$thispage2 .= "$sub0,$array[1],$array[2]";
					}else{
						$sub0 == 1;
						$thispage2 .= "$sub0,$array[1],$array[2]";
					}
					echo($thispage2); ?>

So the problem is, why is the $sub0 after you click the link one time reading as nothing...

 

Any help would be appreciated.

 

Thanks in advanced,

 

The14thGOD

[wildteen88]

You are doing a comparision rather than an assignment operation:

$sub0 == 1;

 

change that to:

$sub0 = 1;

 

and your code will work how you want it to.

[The14thGOD]

ah, thanks, damn, i should have looked for minor errors like that.

 

thanks