Connect with PHP
----------------

This example connects to Redis®* service from PHP, making use of the ``predis`` library.

Variables
'''''''''

These are the placeholders you will need to replace in the code sample:

==================      =============================================================
Variable                Description
==================      =============================================================
``REDIS_URI``           URL for the Redis connection, from the service overview page
==================      =============================================================

Pre-requisites
''''''''''''''

Install the ``predis`` library:

.. code::
  
   composer require predis/predis

Code
''''
Create a new file named ``index.php``, add the following content and replace the placeholder with the Redis URI:

.. literalinclude:: /code/products/redis/connect.php
   :language: php

This code creates a key named ``key`` with the value ``hello world`` and no expiration time. Then, it gets the key back from Redis and prints its value.

Run the code:

.. code::
   
   php index.php

If the script runs successfully, the outputs should be:

.. code::

   The value of key is: hello world