How Do I Enable the MySQLi Extension in PHP 7 on Ubuntu?

Enabling the MySQLi Extension in PHP 7

In PHP 7, the MySQLi extension is the preferred method for interacting with MySQL databases. To enable this extension, certain steps must be taken.

Issue:

You have installed PHP 7 and MySQL 5.5.47 on Ubuntu 14.04 but cannot find the MySQLi extension using phpinfo(). phpMyAdmin also indicates that the MySQLi extension is missing.

Solution:

Due to the deprecation of the php5-mysql package, you need to install a new package:

sudo apt-get install php-mysql

This action automatically updates Apache and PHP 7, installing the MySQLi extension.

Restart Apache to complete the installation:

sudo service apache2 restart

Verify the installation by running phpinfo() or checking the php.ini file for the MySQLi extension.

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