Help With Function If Statement

[eddioot]

Hi all,

 

i am fairly new with php and i am running into a problem with a php function. It is very basic but i've got something wrong here.

 

It is a function in wordpress that needs to analyze the post and extract the category. For every category another value needs to be returned. My code is:

 

function postimage($post_id){
$category = get_the_category( $post_id );
$id = $category[0]->cat_ID;


if ( $id = 45 ){
 $link = 'This is category 45';
}
else {
 $link = 'This is not category 45 ';
}


return $link;
}

 

There are 2 strange things happening:

 

1. The first statement is always true. Even if the category id is not 45 it still returns the first $link.

2. If i return the variable $id after the if statement it returns als 45. If i do it without the if statement it returns correct.

 

The 2 problems are obviously related but i don't understand what i'm doing wrong. Please help

[Christian F.]

= is assignment, while == is for testing equality. What you're doing is assigning 45 to $id, and then testing if the returned value of the assignment (45) is equal to true (which it is).

Edited November 26, 2012 by Christian F.

[eddioot]

Wow it really was that simple Thank you very much!

[Christian F.]

You're welcome.