Three PHP extension installation methods under CentOS

Under CentOS, PHP has multiple ways to install extensions, including package management-style yum installation, pecl installation, and source code compilation and installation.

Package management-style installation and uninstallation is particularly convenient, while source code compilation-style installation facilitates parameter tuning.

Generally, package-managed installation is recommended to build a local development environment to save time. For online deployment environments, compilation and installation are recommended to facilitate tuning.

This article uses MongoDB extension installation as an example.

Tools

PHP version: 7.0.17

Nginx: 1.10.2

VMware version number: 12.0.0

CentOS version: 7.0

1. yum installation

The yum method can automatically install the expanded .so dynamic library and configure php.ini

Note:

Please make sure there is a corresponding extension in your yum source

After the installation is complete, restart the server Nginx or Apache

Visit the index.php file with your browser , output phpinfo information, if there is MongoDB information, the installation is successful

[root@localhost ~]# yum search mongodb|grep php        # 搜索 yum 源里面 MongoDB 拓展
[root@localhost ~]# yum -y install php70w-pecl-mongo   # 安装 PHP 对应版本的 MongoDB 扩展
[root@localhost ~]# systemctl restart nginx            # 重新启动 Nginx

##2. pecl installation

Official documentation: https: //www.php.net/manual/zh/mongodb.installation.pecl.php

[root@localhost ~]# pecl install mongodb

-bash: pecl: Command not found

Directly enter pecl install mongodb and an error will be reported, indicating pecl We have not installed it. When installing pecl

[root@localhost ~]# yum -y install php70w-pear
[root@localhost ~]# pecl install mongodb
configure: error: Cannot find OpenSSL&#39;s <evp.h>
ERROR: `/var/tmp/mongodb/configure --with-php-config=/usr/bin/php-config&#39; failed

, an error will be reported at this step. We need to install openssl. After the installation is completed, continue to execute the last failed command

[root@localhost ~]# yum -y install openssl openssl-devel
[root@localhost ~]# pecl install mongodb
[root@localhost ~]# systemctl restart nginx             # 重新启动 Nginx

After the installation is completed, load the MongoDB extension in the PHP configuration file php.ini

After the installation is completed, restart the server Nginx or Apache

Browser access index .php file, output phpinfo information, if there is MongoDB information, the installation is successful

3. Source code compilation and installation

Source code compilation package download list: https: //pecl.php.net/packages.php

Mongodb package download address: https://pecl.php.net/package/mongodb

[root@localhost ~]# wget http://pecl.php.net/get/mongodb-1.2.8.tgz  #下载源码包
[root@localhost ~]# tar zxf mongodb-1.2.8.tgz  #解压
[root@localhost ~]# cd mongodb-1.2.8
# 可能是 /usr/local/php/bin/phpize 找到自己的 phpize 文件，php-config 同理
[root@localhost mongodb-1.2.8]# /usr/bin/phpize    
Configuring for:
PHP Api Version:         20151012
Zend Module Api No:      20151012
Zend Extension Api No:   320151012
[root@localhost mongodb-1.2.8]# ./configure --with-php-config=/usr/bin/php-config
configure: error: Cannot find OpenSSL&#39;s <evp.h>

At this step, it feels familiar again It feels familiar again. We need to install openssl. After the installation is completed, continue to execute the command that was not successfully executed last time

##

[root@localhost mongodb-1.2.8]# yum -y install openssl openssl-devel
[root@localhost mongodb-1.2.8]# ./configure --with-php-config=/usr/bin/php-config
# 确保自己安装了 gcc gcc++ 如果没有安装 yum -y install gcc gcc++
[root@localhost mongodb-1.2.8]# make && make install # 编译

Instructions: php-config is a simple command line Script is used to obtain information about the installed PHP configuration.

When compiling an extension, if multiple PHP versions are installed, you can use the --with-php-config option during configuration to specify which version to use for compilation. This option specifies the corresponding php-config. The path to the script.

The compilation is successful as shown below

At this time, load the MongoDB extension in the PHP configuration file php.ini

Restart the server Nginx or Apache

The browser accesses the index.php file and outputs phpinfo information. If there is MongoDB information, the installation is successful

[root@localhost mongodb-1.2.8]# systemctl restart nginx # 重新启动 Nginx

Summary:

The difference between pecl installation and source code compilation and installation is that the latter is more convenient for parameter tuning.

When choosing Mongo extensions, the official provides two types: mongo and mongodb

The first one: https://pecl.php.net/package/mongo

Second: https://pecl.php.net/package/mongodb

First official tip: This package has been superseded, but is still maintained for bugs and security fixes, has been abandoned, However, bugs and security issues will continue to be fixed, and PHP7 is not supported.

Recommendation:

If the PHP version is 5.x, it is recommended to use the mongo extension

The PHP version is 7.x, it is recommended to use the mongodb extension

PHP5.x can use mongodb extension. But PHP7.x cannot use mongo extension.

Written at the end:

If you are learning by yourself, it is recommended to install it with yum, because during your installation process, errors will appear for missing various dependencies.

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