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Access the Redis Instance from a Phpredis client

After you create an ECS instance and a whitelist entry, install a phpredis client on the ECS instance and access the Redis instance from the client. Prerequisites <ol> <li>You have successfully created a Redis instance. For more information, see <a href="http://pinganyun.com/ssr/help/database/Redis/Getting_Started.Create_Redis" target="_blank">Create a Redis Instance</a>. Make sure the instance is in running status.</li> <li>You have successfully created an ECS instance. For more information, see <a href="http://pinganyun.com/ssr/help/database/Redis/Getting_Started.Create_ECS" target="_blank">Create an ECS Instance</a>. Make sure the instance is in running status.</li> <li>You have successfully created a whitelist entry. For more information, see <a href="http://pinganyun.com/ssr/help/database/Redis/Getting_Started.Create_Whitelist" target="_blank">Create a Whitelist Entry</a>.</li> </ol> Usage Guidelines This article uses a Linux-CentOS ECS instance as an example. Procedures 1.      Log in to the ECS instance.          a.       Log in to the <a href="https://pinganyun.com/console/ecs/overview" target="_blank">ECS Console</a>.          b.      In the left navigation pane, click Instance to enter the Instance Management page.          c.       In the Operations column for the target instance, click ECS Console.          d.      Enter the username and password. 2.      Configure the editing environment.          a.       Execute the following command to install compilation tools such as gcc-c++ and make: <pre> <code>yum install gcc-c++ make</code></pre>          b.      Execute the following command to install the php development kit and command line tool: <pre> <code>yum install php-devel php-common php-cli</code></pre> Result Execute the following command to view the version of php: <pre> <code>php --version</code></pre> 3.      Install the phpredis client. For more information, see <a href="http://github.com/phpredis/phpredis" target="_blank">Details</a>.          a.       Execute the following command to download the phpredis client: <pre> <code>wget https://pecl.php.net/get/redis-4.3.0.tgz</code></pre> or: <pre> <code>wget https://github.com/phpredis/phpredis/archive/4.3.0.tar.gz</code></pre> <img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201507135105-10a7c5719660.png" style="height:20px; margin:0px; width:80px" />: <ul> <li>Choose the phpredis version according to your business needs. This article uses phpredis 4.3.0 as an example.</li> <li>You can download the phpredis client at https://pecl.php.net/package/redis or https://github.com/phpredis/phpredis/archive/4.3.0.tar.gz.</li> </ul>          b.      Execute the following command to decompress the downloaded phpredis client file: <pre> <code>tar –zxf redis-4.3.0.tgz</code></pre>          c.       Execute the following command to enter the redis-4.3.0 directory: <pre> <code>cd redis-4.3.0</code></pre>          d.      Execute the following command to configure the php-config file: <pre> <code>phpize ./configure --with-php-config=/usr/bin/php-config</code></pre> <img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201507135105-10a7c5719660.png" style="height:20px; margin:0px; width:80px" />: The installation methods of the phpredis client vary depending on the operating system. Execute the following command first to locate the php-config file: <pre> <code>find / -name php-config</code></pre>          e.       Execute the following command to compile the phpredis client: <pre> <code>make</code></pre>          f.       Execute the following command to install the phpredis client: <pre> <code>make install</code></pre> Result The system returns the following path when the installation succeeds. <img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201507135311-1927b7d49a6c.png" style="height:46px; width:690px" />          g.      Execute the following command to open the php.ini file: <pre> <code>vim /etc/php.ini</code></pre> <img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201507135105-10a7c5719660.png" style="height:20px; margin:0px; width:80px" />: To obtain the location of the php.ini file, execute the find / -name php.ini command.          h.      Add the extension configuration item to the php.ini file. <pre> <code>extension = "/usr/lib64/php/modules/redis.so"</code></pre> <img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201507135105-10a7c5719660.png" style="height:20px; margin:0px; width:80px" />: To obtain the location of the redis. so file, execute the find / -name redis.so command. Result Execute the following command to verify that the phpredis client has been successfully installed: <pre> <code>php -m |grep redis</code></pre> The system returns redis, indicating that the phpredis client has been successfully installed. <img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201507135441-1115a236932f.png" style="height:44px; width:651px" /> 4.      Connect to the Redis instance. Execute the following codes to create the phpredis-cluster.php file under any path: <pre> <code><?php $redis_info = "Domain-Name:Port"; $user_pwd = "Password"; $redisrc = new RedisCluster(NULL,Array($redis_info),3,3,true,$user_pwd); $redisrc->set("welcome","pingan cloud redis"); $value = $redisrc->get("welcome"); echo $value; $redisrc->close(); ?></code></pre> <img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201507135105-10a7c5719660.png" style="height:20px; margin:0px; width:80px" />: <ul> <li>Domain-Name: Access domain name of the Redis instance. For more information, see <a href="http://pinganyun.com/ssr/help/database/Redis/User_Guide.Instance_Management.View_Instance" target="_blank">View Basic Information about an Instance</a>.</li> <li>Port: Port number of the Redis instance. For more information, see<a href="http://pinganyun.com/ssr/help/database/Redis/User_Guide.Instance_Management.View_Instance" target="_blank"> View Basic Information about an Instance</a>.</li> <li>Password: Password of the Redis instance that has been set when you create the Redis instance. For more information, see <a href="http://pinganyun.com/ssr/help/database/Redis/User_Guide.Instance_Management.View_Instance" target="_blank">View Basic Information about an Instance</a>.</li> </ul> Result Execute the following command: <pre> <code>php phpredis-cluster.php</code></pre> If the connection succeeded, the system returns pingan cloud redis. <img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201507135652-1faf49a4976e.png" style="height:49px; width:719px" />

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