PHP Error Message

[bschultz]

I'm trying to use simplexml.so (which I thought was supposed to be included in php5).

I'm getting these errors email to me:

PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626+lfs/simplexml.so' - /usr/lib/php5/20090626+lfs/simplexml.so: cannot open shared object file: No such file or directory in Unknown on line 0


I couldn't find any config files for this in /etc/php5/conf.d...so I added extension=simplexml.so in the mysql config file...and reloaded php. No errors on reload...but now I am getting these emails.

Any ideas?

Thanks.

[CopalFreak]

That seems like it may be related to this bug:
http://bugs.php.net/bug.php?id=53632&edit=1
you can type this at command line
php -v
If you get an older version (PHP 5.1 or something older than 5.2.17), I would
suggest getting the newer version and/or recompile, and reload.
If you already have an up dated version (PHP 5.3.5), post again..maybe somebody else can help.

[bschultz]

I'm running version 5.3.3-7+squeeze1 with Suhosin patch (cli) built March 18, 2011.

I'll try an upgrade.

Thanks.

[bschultz]

I upgraded to 5.3.5...and the error message went away. BUT, php scripts didn't execute at all.

I rolled back to php4 (which was still installed, and I removed v5 all together) and everything appears to be OK...other than I'm running v4!

[CopalFreak]

I am guessing that there were either minor configuration changes or incompatibilities that prevented the newer version from running as hoped.
Installed 5.3.5 probably provided some newer version so of library files and made minor configuration changes that 'fixed' the errors you were having.
(I would still be on the look out for security holes though..especially if you are running this alongside a database which might be vulnerable to injection).

Going from v4 to v5.3.5 is a bit of a shift. Some of the older structures no longer function they way they used. That said, I would encourage you to attempt to update some of the outdated code to be more v5x compatible.
If you are working on a 'live' system, a second 'test' system might be in order..nothing fancy, just enough to test the code with the newer php. (you MIGHT be able to run them side-by side on two separate virtual servers on the same machine, but I would not recommend attempting it..It would be much better to make a duplicate copy of your existing system, and setup a 'plan of attack' for migrating it to the newer version of PHP..then upgrade that machine using that plan (modifying as needed)..then wiping it, duplicating the original machine again and using your plan to make sure that all goes very smooth and easy.
Once you have that down, start fixing the PHP code to work on the new version.
That way, when everything is ready, you can just execute the plan on the original machine (after a full backup of course), and copy over the new php code and yer all set.

Here is a guide that will help convert some of the old setup to the new.. not TOO much info, but some may be useful :
http://www.ibm.com/developerworks/op...os-php-v5migr/

You might also want to go over some changes that are completely backwards incompatible (once you make them, older version will no longer work) :
http://www.php.net/manual/en/migrati...compatible.php

You probably have to make some major changes to your setup and php files and that will take a while, so be prepared for the 'long haul'.. that said..once you have it, it will be much easier to maintain and should be more robust and faster.

http://www.php.net/
http://www.php.net/manual/en/migration53.php
http://www.google.com
and
useful places like http://www.HowToForge.com will be your best resources for information and research to help you get through this process.

Keep in mind that if you run a very small personal lesser-used site, and security, stability, and speed are not much of an issue in your scenario, it may not be worth the effort..unless you just like the challenge and learning new things.

Good luck with everything!