Warning Message: Pdo (Pdo_Mysql) Is Required (For Mysql Database)

[doolak]

Hi there,

first time since I am using PW I am getting this error message:

 PDO (pdo_mysql) is required (for MySQL database)

I am using the same server like always and PDO is installed. The installation stops after entering the database infos and nothing happens.

Any idea what can be wrong?

Cheers, Christian

[doolak]

Damn - I have no idea what's wrong - I cannot install PW...

[kongondo]

Are your other sites still working fine? No Apache error logs?

Edited August 3, 2014 by kongondo

[doolak]

Yes, all the other sites work fine...

[kongondo]

Apache logs errors?

[kongondo]

Version of PW?

See also

https://processwire.com/talk/topic/6279-pdo-enabled-but-not-recognized-by-pw/

[doolak]

I tried to install the newest version - the I tried to install an older one.

Now I made the big mistake to run an upgrade of MySQL and now the other sites throw a 500 internal server error...

Have to fix this now first! OMG

[doolak]

Ok - got that MySQL update problem fixed - the other sites are running again now. Puh...

Will have a look at that thread now, thanks, kongondo!

[kongondo]

Cool...let us know how it goes..

Edited August 3, 2014 by kongondo
Edited for clarity...:-)

[doolak]

Ok - in the other thread the host had a problem and fixed it - I am still getting that warning in the installation's compatibility check.

If I just try to install I can enter the database informations and if I continue then the install gets stuck and looks as follows:

So far no solution...

[doolak]

In the Apache logs I found this:

 

[sun Aug 03 23:26:50 2014] [error] [client xx.xxx.xx.xxx] PHP:  syntax error, unexpected END_OF_LINE, expecting '=' in /usr/local/lib/php.ini on line 2, referer: http://www.xyz.de/dev/xyz/install.php

 

So I checked the php.ini:

^

 

 

;;;;;;;;;;;

; WARNING ;

;;;;;;;;;;;

; This is the default settings file for new PHP installations.

; By default, PHP installs itself with a configuration suitable for

; development purposes, and *NOT* for production purposes.

; For several security-oriented considerations that should be taken

; before going online with your site, please consult php.ini-recommended

; and http://php.net/manual/en/security.php.

 

I have deleted the "^" and restarted Apache - but I still get the error message above (syntax error, unexpected END_OF_LINE, expecting '=' in /usr/local/lib/php.ini on line 2).

 

Any idea how to fix that? Do you think this could be the source of the installation problem?

[kongondo]

Hmmm, no idea but Google points me to this (amongst others...)

http://www.boonex.com/forums/topic/MAJOR-problems-after-PHP-update-PLEASE-HELP-.htm

[doolak]

Yes, I found that too - I am trying to fix this and hope this will fix the installation problems...

[kongondo]

Btw, what are you PHP and MySQL versions...?

[doolak]

PHP version is 5.4.31

MySQL was 5.1 - now I have upgraded to 5.5

[kongondo]

Hmmm, does this apply to you?

http://share.ez.no/forums/install-configuration/cannot-load-module-pdo_mysql

I've run out of ideas though...I'll let others chime in

Edited August 3, 2014 by kongondo

[doolak]

Thanks a lot for your help, kongondo! This looks helpful!

[doolak]

Had to restart the apache manually via commandline - now the error message in the apache logs is away and the installation does not show the PDO problem - will try now to install.

Success! So the problem with the missing PDO warning came from a corrupted php.ini

Thanks again for your help!