I'm using Wordpress with a custom theme.
At the top of the header.php of the theme I've got a Mobile Detect script.
require_once '/extras/Mobile_Detect.php';
$detect = new Mobile_Detect;
Then further down the header.php page I have a line that checks if the user is on a Mobile, and displays different content accordingly.
if ($detect->isMobile()) { echo "Premium"; } else { echo variable('prem_no'); }
However, in a further included PHP file further down the page, when I try to use the same script:
if ($detect->isMobile()) { echo "Find a psychic"; } else { echo "Our Psychic Readers"; }
I get this error:
Fatal error: Call to a member function isMobile() on a non-object in C:\wamp\www\clairvoyant\extraseader-categories.php on line 1
How can I make it so that a file required or included in the header.php file, can be referenced to throughout the rest of the page files?
I'm a bit confused between include, include_once, require and require_once, so can someone help clear that up?
Not too many differences between require and include but the main point is with require the file must exist or you get an error while include is optional.
and the _once is to make sure you don't include it more than once.
However, in a further included PHP file further down the page, when I try to use the same script I get this error...
This sounds like $detect is not the same object for example
require_once '/extras/Mobile_Detect.php';
$detect = new Mobile_Detect;
if ($detect->isMobile()) { echo "Premium"; }//Good
....
$detect['mobile'] = 'iPhone';
if ($detect->isMobile()) { echo "Find a psychic"; }//Bad
My guess is that somewhere along the lines $detect is being reset to something else. Do a search for all instances of $detect and look for something that's using a single equals instead of a double or triple. It could also be another include somewhere that's resetting it.
If the variable $detect flat out didn't exist you would have received a different notice, Undefined variable: detect.
If $detect were a valid object but the method no longer existed you would have received Fatal error: Call to undefined method Mobile_Detect::isMobile.
However your error says that the variable that you are working with is not an object and therefor can't have a member function in the first place.