If you are often working with PHP upgrades, you should do this automatically – you already know all the issues you might face. But if it’s done for the first time, it is quite hard to find your problem. I will tell you about the most common issue and about the applicable actions to fix this.
When you update your PHP installation via Directadmin build system or when you do this manually, new modules are added to httpd.cond, but the older ones are not deleted. This usually causes problems, as apache refuses to start after PHP upgrade, What do you need to do in order to tun apache again?
You need to edit your httpd.conf file (it is usually located at /etc/httpd/conf/httpd.conf). Open this file fith any editor you like and comment all strings that contain “php4”. The same directives for PHP5 are added automatically so you don’t have to worry about it. When you comment everything related to PHP4, you should save httpd.conf and try to reboot apache. If everything is OK, it should start, if not – you have to follow its logs or errors you receive at the command line window. Let me remind you that most useful way to restart apache is service httpd restart.
