After upgrade to PHP 5.4, site displays a blank page..

[DivaVocals]

I'm stumped as to what the issue is.. I have seen in the Zen Cart Wiki that PHP 5.4 works with Zen Cart v1.5.1 with some patches.. I've seen some posts about the sessions.php file. is this the "patches" that are needed?? Are there other patches??

[mc12345678]

I'm stumped as to what the issue is.. I have seen in the Zen Cart Wiki that PHP 5.4 works with Zen Cart v1.5.1 with some patches.. I've seen some posts about the sessions.php file. is this the "patches" that are needed?? Are there other patches??

While not able to find the similar thread from a few weeks ago or so that asked the same question, there is this thread started to address this:

http://www.zen-cart.com/showthread.p...5-4-patch-list

[gilby]

I'm stumped as to what the issue is.. I have seen in the Zen Cart Wiki that PHP 5.4 works with Zen Cart v1.5.1 with some patches.. I've seen some posts about the sessions.php file. is this the "patches" that are needed?? Are there other patches??

I have had this happen on 3 zen 1.5.1 sites when I switched to php 5.4.
I would switch back to php 5.3 and the website would work fine.

These were sites that had been around for several years and progressively upgraded to zen 1.5.1
php 5.4 finds that the password used for database access had been created with an older encryption method and it refused to access the database until I created a new database password.

I went into cpanel deleted the current user for the database
Created a new user (with the same name and database password)

Result: The sites worked immediately with php 5.4

It might not be your problem, but it worked for me.
It took a while to find this as there were no error log files.
Just a blank page.
I can't remember how I managed to find the error (it did show up eventually somewhere)

[DivaVocals]

I have had this happen on 3 zen 1.5.1 sites when I switched to php 5.4.
I would switch back to php 5.3 and the website would work fine.

These were sites that had been around for several years and progressively upgraded to zen 1.5.1
php 5.4 finds that the password used for database access had been created with an older encryption method and it refused to access the database until I created a new database password.

I went into cpanel deleted the current user for the database
Created a new user (with the same name and database password)

Result: The sites worked immediately with php 5.4

It might not be your problem, but it worked for me.
It took a while to find this as there were no error log files.
Just a blank page.
I can't remember how I managed to find the error (it did show up eventually somewhere)

I'll give the password change a shot.. because at this point I'm desperate.. and like you I am getting NO error logs either.. Not sure this will work since the WordPress site shares the database with Zen Cart and it is having no issues..

I switched the live site back to PHP 5.2 so for now it's working, but this is a bandaid as HostMonster has said in one week they will be disabling PHP 5.2 support altogether.. Now I have a very short window to get this worked out on the dev site..

Grrrrrrrrrrrrr...............

[gilby]

A few things I found on the web regarding this (possible) problem

www(dot)simplemachines.org/community/index.php?topic=491636.0 (see post 6)
forum(dot)mediatemple(dot)net/topic/7204-wordpress-upgrading-php-version-to-54/
discussion(dot)dreamhost(dot)com/thread-137852.html (post 6)

[DivaVocals]

A few things I found on the web regarding this (possible) problem

www(dot)simplemachines.org/community/index.php?topic=491636.0 (see post 6)
forum(dot)mediatemple(dot)net/topic/7204-wordpress-upgrading-php-version-to-54/
discussion(dot)dreamhost(dot)com/thread-137852.html (post 6)

I'll give the database reset a try after I try a few other things.. but the WordPress part of this site is working just fine.. all my issues are related to Zen Cart.. and they share the same DB..

[DivaVocals]

A few things I found on the web regarding this (possible) problem

www(dot)simplemachines.org/community/index.php?topic=491636.0 (see post 6)
forum(dot)mediatemple(dot)net/topic/7204-wordpress-upgrading-php-version-to-54/
discussion(dot)dreamhost(dot)com/thread-137852.html (post 6)

Alas deleting and recreating the DB user did not solve the issue.. I wasn't hopeful this was the answer anyway since the WordPress part of the site is functioning fine..

[RodG]

I'm stumped as to what the issue is..

Does the problem exist with the entire site, or is it just the backend or front end?

If you have SSL enabled, have you tried disabling it to see if the problem still exists?

Does the problem still exist if you revert back to the 'classic' template?

Cheers
RodG

[DivaVocals]

Does the problem exist with the entire site, or is it just the backend or front end?

If you have SSL enabled, have you tried disabling it to see if the problem still exists?

Does the problem still exist if you revert back to the 'classic' template?

Cheers
RodG

• Front-end issue. Admin works just fine.
• SSL is not the issue as it exists on both the dev site (which does NOT have SSL enabled) and on the live site (which does have SSL enabled)
• Removing the template brings the site back but generates LOTS of error messages from various add-ons (for example SNAF being one) because of missing files. I am confident these errors are unrelated to the root issue . (FYI.. I typically delete classic from my installs and replace it with the Barebones template.. I DESPISE Classic)

So yes I am looking at my installed add-ons among other things (like eliminating the server the site is hosted on as a possible contributing factor since all is well once I switch the site back to PHP 5.2)

Interestingly other clients with pretty much the same setup and add-ons are not having issues with PHP 5.4..

Anyway a fellow Zenner was kind enough to share the list of v1.5.1 mods/bugs/issues I asked after.. So I can at LEAST cross that off my list.. The lack of ANY error logs is what makes this a PITA..

[mc12345678]

Anyway a fellow Zenner was kind enough to share the list of v1.5.1 mods/bugs/issues I asked after.. So I can at LEAST cross that off my list.. The lack of ANY error logs is what makes this a PITA..

Sharing back with the community to also help those that may be looking?