PHP update breaks Prestashop

[Jay C]

I've been running an older version of PHP (7.3.33). I'm trying to update to 7.4.33 or higher but whenever I change the PHP version on the server, Prestashop shoots off all kinds of errors. I'm on Prestashop 1.7.7.5. I need to update because of my CMS.

I've been using Prestashop for a few months now and it's very buggy. The reset password feature never worked, I can't turn off Debug mode or the shop won't work, suddenly the Stripe module isn't completing orders after either an upgrade to the module or the installation of another module. And all of a sudden randomly the shop front page stops displaying content and only shows the header and the footer until I go in and manually reset the cache. I'm wondering if an update in PHP and possibly an update of Prestashop itself could help with these errors but even the 1 Click Update doesn't work. I can see the pre-check and everything there is ok but it says turn on maintenance mode. Well after that's turned on, 1-Click Update just shows a blank white page.

Honestly I like the layout and features of Prestashop but this is a bit ridiculous. I'm getting close to getting rid of the whole thing.

Any ideas on the PHP thing?

Edited June 3, 2023 by Jay C (see edit history)

[ComGrafPL]

Post debug mode errors. Either install clean 1.7.8.9 / 8 and migrate the data, so you can work on PHP 7.4 / 8.

[Jay C]

9 hours ago, ComGrafPL said:

Post debug mode errors. Either install clean 1.7.8.9 / 8 and migrate the data, so you can work on PHP 7.4 / 8.

When I change PHP to 7.4.33, these errors pop up on the front end

 

Whoops, looks like something went wrong.

(1/1) ContextErrorException

Warning: Cannot modify header information - headers already sent by (output started at /public_html/store/src/Adapter/EntityMapper.php:99)

in FrontController.php line 787

at FrontControllerCore->sslRedirection()in FrontController.php line 297

at FrontControllerCore->init()in Controller.php line 287

at ControllerCore->run()in Dispatcher.php line 518

at DispatcherCore->dispatch()in index.php line 28

[Nickz]

13 hours ago, Jay C said:

I need to update because of my CMS.

or because your host obliges you?  In that case change your host. Go VPS. Or VPS with the same hoster so they could do the move. 

[idnovate.com]

On 6/3/2023 at 5:57 PM, Jay C said:

When I change PHP to 7.4.33, these errors pop up on the front end

 

Whoops, looks like something went wrong.

(1/1) ContextErrorException

Warning: Cannot modify header information - headers already sent by (output started at /public_html/store/src/Adapter/EntityMapper.php:99)

in FrontController.php line 787

at FrontControllerCore->sslRedirection()in FrontController.php line 297

at FrontControllerCore->init()in Controller.php line 287

at ControllerCore->run()in Dispatcher.php line 518

at DispatcherCore->dispatch()in index.php line 28

Could you please upload a screenshot of the error?

[Jay C]

13 hours ago, idnovate.com said:

Could you please upload a screenshot of the error?

I uploaded two screenshots. One when I change the system to PHP 7.4.33 and another when I change it to PHP 8.0.28.

 

PHP 8.0.28

PHP 7.4.33

Edited June 5, 2023 by Jay C
labled the images (see edit history)

[idnovate.com]

Indeed, these errors appears because you are using a PHP version not compatible with your PS version: https://devdocs.prestashop-project.org/1.7/basics/installation/system-requirements/#php-compatibility-chart

But it seems that you had some errors before this change:

Quote

The reset password feature never worked

Quote

the Stripe module isn't completing orders after either an upgrade to the module or the installation of another module

Quote

the shop front page stops displaying content and only shows the header and the footer until I go in and manually reset the cache

So, what do you prefer to do? Updating PHP and PS or keep the versions and check the errors?

[Jay C]

On 6/8/2023 at 10:50 PM, idnovate.com said:

Indeed, these errors appears because you are using a PHP version not compatible with your PS version: https://devdocs.prestashop-project.org/1.7/basics/installation/system-requirements/#php-compatibility-chart

But it seems that you had some errors before this change:

So, what do you prefer to do? Updating PHP and PS or keep the versions and check the errors?

Preferably have an error free Prestashop installation on an updated PHP. Am I naive in thinking that shouldn't be unrealistic?

[idnovate.com]

On 6/17/2023 at 6:23 AM, Jay C said:

Preferably have an error free Prestashop installation on an updated PHP. Am I naive in thinking that shouldn't be unrealistic?

That's great. But if you want to have an updated PHP then you have to update PS too.

[Nickz]

On 6/17/2023 at 12:23 AM, Jay C said:

Preferably have an error free Prestashop installation on an updated PHP. Am I naive in thinking that shouldn't be unrealistic?

A dynamic programmed site needs updates. That is the policy of all dynamic developments.

The only way to freeze the dynamic language at a fixed point is to not use cpanel, plesk among others based control panels.

 A VPS or a dedicated server, for your shop without a control panel. Still, you need to know a little to be able to block eventual attacks.