Payment Modules Missing from Modules/Payment Modules When I Upgrade

I'm moving to a server running Xenial Xerus with PHP 7. On a fresh install of 1.5.5e, all the included payment modules show up in Modules/Payment Modules. When I move the store, remaining with 1.5.4, several payment modules are missing, including all Paypal, Net1 Payment, Check/Money Order and FirstData modules.

Doesn't sound like used the upgrade process suggested by: http://www.zen-cart.com/entry.php?3-How-do-I-rebuild-my-site-on-the-new-version-instead-of-upgrading

Suggest following the guidance provided at this FAQ to address what is probably a partial blank screen: http://www.zen-cart.com/content.php?124-blank-page

To be clear, just moving the store results in the modules missing. This is the procedure for moving:

https://www.zen-cart.com/content.php?142-i-want-to-move-my-zen-cart-installation-to-another-host-or-a-different-server

Right, but you're moving a Zen Cart 1.5.4 store (not upgraded) to a new webhost running PHP 7 and you're running into an incompatibility between the Zen Cart and PHP versions.

You might ask your new webhost if they have a cPanel control that you can use to "down-level" the PHP version to 5.6. Then you could transfer your ZC 1.5.4 store and get it used to its new home while you contemplate your upgrade to ZC 1.5.5 (which *does *inter-operate with PHP 7.0).

Or.... upgrade on the old server, then move? I've confirmed I can't install the old version on the server running PHP 7.

Yep, either way works!

Except when it doesn't. Installed 1.5.5e on the old server. All the payment modules are showing. I moved it to the new one with PHP 7 (Xenial Xerus) and the Paypal modules, Net 1 payment services are all gone.

The modules show up on a fresh install.

greenftechn:

Except when it doesn't. Installed 1.5.5e on the old server. All the payment modules are showing. I moved it to the new one with PHP 7 (Xenial Xerus) and the Paypal modules, Net 1 payment services are all gone.
By "gone" do you mean "the rest of the screen isn't drawn" (including the right-hand sidebar)? Or do you mean that everything before and after those modules shows up fine, just that those specific modules are missing?

If it's because "the rest of the page didn't complete being drawn" (which I'm assuming is the case), then the PHP errors causing it to abort are logged in your /logs/ folder. Ref: http://www.zen-cart.com/content.php?124-blank-page
Tell us what the errors are, and we can help further.

I suspect your "Net 1" module has a PHP error incompatible with PHP7 and is aborting everything. Details in the /logs/ folder.

Debug Log Lines:

[18-Apr-2017 15:57:00 UTC] PHP Parse error: syntax error, unexpected '[', expecting ',' or ';' in /var/www/html2/store/includes/modules/payment/linkpoint_api.php on line 320

This was repeated for each time the modules/payment page was loaded.

I removed the Linkpoint payment module and the other modules are now listed. You were correct. The rest of the page was not being drawn.

The whole linkpoint module is now obsolete. You can remove the rest of its files:

/includes/languages/english/modules/payment/linkpoint_api.php
/includes/modules/payment/linkpoint_api.php
/includes/modules/payment/linkpoint_api (entire folder)

If you still need to use FirstData, use the PayeezyJS module or the First Data HCO Hosted Checkout module.

Thanks for the help!

OH LOL it's obsolete, ok justs delete it. Otherwise this seems to work:

change line 306 of includes/modules/payment/linkpoint_api.php as follows:

   global $$order_totals[$i]['code'];

change to:

   global ${$order_totals[$i]['code']};

Apparently PHP 7 does not support variable substitution with array element. Wrap it in brackets and voila, the rest of the payment modules should show up in the admin.