PHP page is blank and mysql cannot be loaded. Solution_PHP tutorial

Being monitored by the website in my sleep (click here to enter many websites that provide free website monitoring. I use one from abroad. It monitors once every minute and provides real-time reminders to avoid the website hanging up for a long time.) Text messages to Noisy When I woke up, the website could not be opened normally, so I had no choice but to get up.

All websites prompt Service Unavailable. Looking at the logs, I found that there is an error in loading the 7i24 anti-hotlink file. I will not check the cause first. I will uninstall it first. After uninstalling, the static page is normal, but the PHP page is not working. All pages are blank. Restart IIS. , mysql all failed. I wrote a simple php page to test php and found that it was normal. It seemed that I could not connect to mysql. I searched online for solutions and found the following methods:

　1. extension_dir = is inconsistent with the actual ext directory of PHP.

　2. The PHP directory and ext directory are not added to the environment variables.

3. The comments before extension=php_mysql.dll and so on have not been removed.

4. The Zend installation directory is inconsistent with the directory specified by Zend in php.ini.

5. Copy libmySQL.dll to: c:windowssystem32. Then restart IIS

It’s dizzying to see. I’ve tried them all, but they still don’t work. Then restart the server, nope. Reinstalling php mysql still doesn't work, and it's a bit broken. But it can't crash, so I have to continue to check. I found an article that mentioned Loaded Configuration File C:WINDOWSphp.ini in phpinfo(). That article mentioned that it was a problem with php.ini, but I couldn't think of it as a problem with php. ini, because I have already restored it before. However, I opened the phpinfo() page () and saw Loaded Configuration File (none). Obviously it was not loaded into php.ini at all. At this time, I thought of permissions and quickly added users read permission to it (if that didn't work, I could add it again. Add guests), restart iis, and it's ok.

So in addition to the above 5 items, you can add a 6th item:

6. Check the permissions of php.ini and give its users (guests) read, read and run permissions.

Environment: win2003, iis

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