Login Not Working After Upgrading to PHP Version 5.6

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I have a client who can no longer sign in to their Concrete 5.6.3.3 site. They are on a shared hosting account, and I upgraded their PHP version to 5.6.

The front-end works fine, but their login doesn't work anymore, even though their password or username hasn't changed.

What might cause this? How can it be fixed?

PineCreativeLabs
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hutman replied on at Permalink Reply
hutman
Can you explain what happens when the login attempt is made?
PineCreativeLabs replied on at Permalink Reply
PineCreativeLabs
It's simply saying it's incorrect, although none of the login accounts have been modified at all.

I suggested to my client to use the "forgot password" to reset their login access. Would doing that solve anything?
hutman replied on at Permalink Reply
hutman
When you updated the version of PHP did it also update the version of MySQL? I've never seem a PHP change cause issues with the database. The only other thing I can think of is that there is a missing PHP Module, did you check the PHP Error logs on the server to see if there is any hints there?
PineCreativeLabs replied on at Permalink Reply
PineCreativeLabs
Looks like they have MySQL version 4.3.8, but the latest stable version is 4.7.5.

To be specific, I upgraded the PHP version from 5.4 to 5.6.
hutman replied on at Permalink Reply
hutman
Did you check the PHP Error logs to see if there is a PHP Module missing that's causing unexpected errors?
PineCreativeLabs replied on at Permalink Reply
PineCreativeLabs
Nothing shows up at all in the error log.