How to install PHP memcache extension under Linux

Step 1: Install dependencies

Before installing the memcache extension, we need to install some system dependencies. Open a terminal and enter the following command:

sudo apt-get update
sudo apt-get install build-essential libtool autoconf automake

This will install the compiler and required build tools.

Step 2: Download and install memcached

Before installing the memcache extension, we need to install memcached first. Memcached is a distributed memory object caching system that stores data in memory for fast access. Use the following command to download and install memcached:

sudo apt-get install memcached

Step 3: Download the memcache extension

Before installing the memcache extension for PHP, we need to download the source code. You can download the latest version from the following website:

http://pecl.php.net/package/memcache

Use the following commands to download and decompress the source code:

wget http://pecl.php.net/get/memcache-x.x.x.tgz
tar -xvzf memcache-x.x.x.tgz

Step 4: Compile and install the memcache extension

After installing the required packages, we can compile and install the memcache extension. Switch to the memcache source code directory and execute the following command:

cd memcache-x.x.x
phpize
./configure
make
sudo make install

Step 5: Configure PHP.ini

After installing the memcache extension, we need to configure it in the PHP configuration file Add it. Open your PHP configuration file (usually /etc/php.ini) and add the following line:

extension=memcache.so

After saving and closing the file, restart the web server so the new settings can take effect.

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