问题
In PHP I'm getting this error:
Call to undefined function mysqli_connect()
I checked my php.ini file and there is no ; in front of extension=php_mysql.dll
or extension=php_mysqli.dll.
I think the I am getting this error because my figuration File (php.ini) Path is C:\Windows. How would I change it to C:\Apache2.2\php\php.ini?
回答1:
On Ubuntu machines you can try:
sudo apt-get install php5-mysql
since the basic PHP5 install does not include the mysqli_connect function.
回答2:
You can set the path using PHPIniDir in .htaccess or your server config.
ie.
PHPIniDir "C:/Apache2.2/php"
You won't have to recompile PHP if the extension gets loaded correctly (so make sure your extension_dir is correct), just make sure you restart Apache after you made these changes.
回答3:
You need to recompile PHP with the extension for this library.
来源：https://stackoverflow.com/questions/5705028/php-error-call-to-undefined-function-mysqli-connect