问题
As is discussed here: mysqli works when run directly but not when via js-ajax
I may need to enable mysqli in my webserver php copy. It is enabled in the command line already.
How do I figure out if mysqli is enabled in a specific php copy, and if it's not, how do I install it?
My webserver is running Ubuntu 14.04.2 LTS.
I have now tried having the following extensions in my php.ini file:
extension=mysqli.so
extension=pdo_mysql.so
extension=php_mysqli.so
I have tried running them all separately, restarted mysql and apache, ran sudo php5enmod mysqli and then I run the page again, but the same error keeps popping up in /var/log/apache/error.log:
PHP Fatal error: Class 'mysqli' not found in /var/www/html/..
And nothing gets added to the sql table unless I run the insert.php from the server side.
When I have all three extension in the php.ini file I get the following errors are well:
Failed loading /usr/lib64/php/modules/ioncube_loader_lin.so: /usr/lib64/php/modules/ioncube_loader_lin.so: cannot open shared object file: No such file or directory
Failed loading /usr/lib64/php/modules/ixed.lin: /usr/lib64/php/modules/ixed.lin: cannot open shared object file: No such file or directory
Failed loading /usr/lib64/php/modules/ZendOptimizer.so: /usr/lib64/php/modules/ZendOptimizer.so: cannot open shared object file: No such file or directory
Failed loading /usr/lib64/php/modules/opcache.so: /usr/lib64/php/modules/opcache.so: cannot open shared object file: No such file or directory
回答1:
From your comments it appears your extension_dir was set to /usr/lib64/php/modules but this folder did not exist on your system.
On your system the mysqli.so module was actually found in /usr/lib/php5/20121212/mysqli.so
To resolve the issue, you can set the extension_dir to /usr/lib/php5/20121212 so that the extension=mysqli.so line is able to find the shared object.
回答2:
You need to recompile your PHP and add the code --enable-all to the end. (I think that command is right. If not the concept is) Your shared objects are not installed.
回答3:
You need open mysqli service from apache server and then restart apache server
回答4:
Follow this guide.
https://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu-14-04.
Skip first step wich is about apache web srver.
Note that configuration for php cli (command line interface) is in a different file from the configuration for the php that your webserver uses.
If you need to configure php for apache, the default path is /etc/php5/apache2/php.ini on UBUNTU 14.02.
If you continue to experience issues with ioncude follow this link https://www.digitalocean.com/community/tutorials/how-to-install-ioncube-loader
来源：https://stackoverflow.com/questions/31535173/enable-mysqli-in-my-in-webserver-copy-of-php