PHP upgrade in server

[waqaspuri2]

My Joomla has been recently causing the following error.

Code: Select all

Notice: Array to string conversion in /home/malkanin/public_html/site/libraries/joomla/registry/registry.php on line 356

Notice: Array to string conversion in /home/malkanin/public_html/site/libraries/joomla/registry/registry.php on line 361

Notice: Array to string conversion in /home/malkanin/public_html/site/libraries/joomla/registry/registry.php on line 356

Notice: Array to string conversion in /home/malkanin/public_html/site/libraries/joomla/registry/registry.php on line 361

Notice: Array to string conversion in /home/malkanin/public_html/site/libraries/joomla/registry/registry.php on line 365

Notice: Array to string conversion in /home/malkanin/public_html/site/libraries/joomla/registry/registry.php on line 365

Notice: Array to string conversion in /home/malkanin/public_html/site/libraries/joomla/registry/registry.php on line 365

Warning: ini_set(): Headers already sent. You cannot change the session module's ini settings at this time in /home/malkanin/public_html/site/libraries/joomla/session/session.php on line 124

Warning: ini_set(): Headers already sent. You cannot change the session module's ini settings at this time in /home/malkanin/public_html/site/libraries/joomla/session/session.php on line 127

Warning: session_set_save_handler(): Cannot change save handler when headers already sent in /home/malkanin/public_html/site/libraries/joomla/session/storage.php on line 92

Warning: session_name(): Cannot change session name when headers already sent in /home/malkanin/public_html/site/libraries/joomla/session/session.php on line 898

Warning: ini_set(): Headers already sent. You cannot change the session module's ini settings at this time in /home/malkanin/public_html/site/libraries/joomla/session/session.php on line 925

Warning: session_set_cookie_params(): Cannot change session cookie parameters when headers already sent in /home/malkanin/public_html/site/libraries/joomla/session/session.php on line 818

Warning: session_cache_limiter(): Cannot change cache limiter when headers already sent in /home/malkanin/public_html/site/libraries/joomla/session/session.php on line 657

Does the website return the following source code?
See, pithm.edu.pk

What recently happened - > Upgrade PHP to 7.4
Version of my Joomla. Probably, 3.1.0

[SharkyKZ]

Joomla 3.1.0 doesn't support PHP 7.4 or even 7.0 properly. You should update Joomla before updating PHP.

[darb]

Yes Joomla 3.1 is hundred years ago. You have to update and understand the process of taking care of your website and now how to update it. I would recommend you to take care of a Joomla professional to solve this problem.

[pe7er]

Don't forget the non-core extensions that have been installed.
You'll need to update those too before switching to a higher PHP version.
And create a backup (files+database) before doing so.

[AMurray]

Is PHP 7.4 the only version available, or can you choose it in the cPanel options (of your hosting account)?

My host offers PHP way back to 5.6 (even though it's long obsolete) and it's a self-service thing where you can pick and choose the PHP you want, when you want.

If you don't have a backup tool within Joomla (such as Akeeba), you can still obtain a version for Joomla 3.1 from their site. Otherwise, you could do a files+database backup from your hosting account admin.

[Webdongle]

You can (depending on the hosting) set the php to 5.x. Check your host's help on how to do that.

Otherwise transfer the site to localhost wamp on your PC.

Then update