Php 5

I couldn't find this answer - I just upgraded my hosting PHP from 5.2 to 5.5 - when I try to bring up my page - I just get a blank screen. However, I have an older cart on 1.3 and it comes up just fine. Can 1.5 run on PHP5? Thanks for any help.

Blank screen issues
http://www.zen-cart.com/content.php?124-i-am-getting-a-blank-page-%28or-blank-part-of-a-page%29

kobra:

Blank screen issues
http://www.zen-cart.com/content.php?124-i-am-getting-a-blank-page-%28or-blank-part-of-a-page%29

I'm not seeing any errors today that are outlined in the link you sent me - in the log there are no errors as a matter of fact.

So back to my question - can v1.5 run with PHP5? My problem stemmed from changing my PHP version from PHP4 to PHP5 - I changed my PHP version back to PHP4 and my site runs perfectly.

Any thoughts?

V1.5.x requires PHP 5.2+ to run properly:

http://www.zen-cart.com/content.php?48-what-are-the-server-requirements-to-run-zen-cart

I should be more clear on the exact version of PHP I need to be at for other applications - right now I'm on PHP5.2 and with my hosting plan - I can change it to PHP5.3. Version PHP5.2 allows my v1.5 ZenCart to work perfectly - when I change my PHP version to PHP5.3 - ZenCart 1.5 does not work.

Any ideas?

Thanks - Jeff

I've just upgraded to ZenCart 1.5.1 and change PHP version to 5.3 and I still have the same problem where the front page does not display oddly I can login into Admin page without a problem.

Version PHP5.2 allows my v1.5 ZenCart to work perfectly - when I change my PHP version to PHP5.3 - ZenCart 1.5 does not work.

Any ideas?
Zen Cart 1.3.9h, 1.5.0, and 1.5.1 all work out of box in my test environments under PHP 5.2 and 5.3. I have a couple test environments running under PHP 5.4 - and after disabling strict error reporting I have not had any major issues.

Check all your plugins and modifications to see if they are PHP 5.3 safe. The link was intended more for people writing plugins, but will not be a bad starting place. The instructions in the "how to fix blank pages" should also help - keep in mind however FATAL PHP errors if present can sometimes show up in the web server's error log (if enabled) instead of the Zen Cart debug logs.

lhungil:

Zen Cart 1.3.9h, 1.5.0, and 1.5.1 all work out of box in my test environments under PHP 5.2 and 5.3. I have a couple test environments running under PHP 5.4 - and after disabling strict error reporting I have not had any major issues.

Check all your plugins and modifications to see if they are PHP 5.3 safe. The link was intended more for people writing plugins, but will not be a bad starting place. The instructions in the "how to fix blank pages" should also help - keep in mind however FATAL PHP errors if present can sometimes show up in the web server's error log (if enabled) instead of the Zen Cart debug logs.

It's so weird why when I change from PHP 5.2 to PHP 5.3 the site will not work. Really frustrated as I can't determine what is going wrong and why such a minor upgrade to PHP stops my site from working.

change PHP version to 5.3 and I still have the same problem
Try switching to the classic template and see if it displays

if so - then look to your desired template's override files

kobra:

Try switching to the classic template and see if it displays

if so - then look to your desired template's override files

Good idea - but still acts the same way - my install only works with PHP 5.2 and not PHP 5.3 :-(

Do you have any mods on the misbehaving site aside from the template? Are they the exact same mods that you have on the site that is working correctly (same version, settings...)?

jfreeman:

It's so weird why when I change from PHP 5.2 to PHP 5.3 the site will not work. Really frustrated as I can't determine what is going wrong and why such a minor upgrade to PHP stops my site from working.
The change from PHP 5.2.x to 5.3.x was not "minor", see http://php.net/manual/en/migration53.changes.php. As lhungil said, Zen Cart v1.3.9/1.5.x work out-of-the-box with PHP 5.3 so it's one (or more) of your addons that's causing you the issue.

Check in your /logs directory for the most recent file named debug*.log and post its contents; that will help others help you.

It could also be that your host's PHP configuration settings are very different between PHP 5.2 and 5.3, and one of those settings is conflicting with something Zen Cart is doing.
Get the actual details of the problem from the server's PHP error logs. Your hosting company can access that information for you.