Idea with php logic using operators

Question

I am new to PHP and find it very hard to explain.

I have a PHP navigation script with 5 categories and two variables relevant to my question:

$catname = 'used-cars'; // the same value for all categories

$currentpage; // pages 1 to 5 

index.php of my site has $currentpage == '1'

The issue is that I need a logic that will say:

If $catname IS NOT 'used-cars', do something, BUT, IF $currentpage is equal to 1, even if $catname is 'used-cats' do it anyway

I am thinking of something like this:

if($catname != 'used-cars' && !($currentpage > '1')):

endif;

Hope you can help!

You mean for both conditions to be used-cars, correct? In your explanation you have used-cats, which makes for another situation entirely. (lots of used cats need homes-- contact your local Humane Society!) — Michael Berkowski
– Michael Berkowski, Commented Nov 15, 2011 at 3:48

Michael Berkowski · Accepted Answer · 2011-11-15 03:43:18Z

2

This is merely a single or condition. On the right side, $currentpage === 1 will evaluate to TRUE without regard to the value of $catname. If either part of the condition is TRUE, you'll enter the if () block to execute your code there.

if ($catname !== "used-cars" || $currentpage === 1) {
  // do your thing

}

answered Nov 15, 2011 at 3:43

Michael Berkowski

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Comments

Kerrek SB · Accepted Answer · 2011-11-15 03:44:37Z

2

This is just:

if (strcmp($catname, 'used-cars') != 0 || $currentpage == 1)

(Careful with the string comparison.)

answered Nov 15, 2011 at 3:44

Kerrek SB

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Comments

Kai Qing · Accepted Answer · 2011-11-15 03:45:12Z

0

Alternatively, you could declare it as a boolean first:

$proceed = false;

if($catname != 'used-cars')
    $proceed = true;

if($currentpage == 1)
    $proceed = true;

if($proceed){
    // whatever you want
}

answered Nov 15, 2011 at 3:45

Kai Qing

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Comments

swordfish · Accepted Answer · 2011-11-15 03:45:19Z

0

$doflag = 0;
if($catname != 'used-cars') 
{
  $doflag = 1;
} else if($currentpage == 1) {
  $doflag = 1;
}

if($doflag == 1) {
  //do something
}

Basically instead of trying to do everything with the block, use the block to set a flag and use the flag to do something.

answered Nov 15, 2011 at 3:45

swordfish

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