php compile and install uninstall

With the development of the Internet industry, various programming languages ​​have been widely used and promoted. Among them, the PHP (Hypertext Preprocessor) language is a programming language that is widely used to develop Web applications. When using the PHP language, we need to compile, install and uninstall PHP. This article will introduce you to the steps and precautions for compiling, installing and uninstalling PHP.

1. Compile and install PHP

1. Confirm dependencies

Before compiling and installing PHP, we first need to confirm whether it has been installed in the system Some support libraries necessary for PHP to run (for example: libxml2, libjpeg, libpng, libmcrypt, libcurl, zlib). If these libraries are not installed, we need to install the development packages of these libraries first.

2. Download the installation package

After confirming the support libraries necessary for PHP to run, we need to first go to the official website https://www.php.net/downloads.php Download the PHP source code installation package (.tar.gz) and select the version that meets the system requirements.

3. Extract the installation package

Extract the downloaded PHP source code installation package to the specified directory, for example: /usr/local/src directory.

$ tar zxvf php-7.2.8.tar.gz -C /usr/local/src/

4. Configure compilation options

Enter decompression After entering the PHP source code directory, execute the configure script for configuration.

$ ./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --enable-fpm --enable-pcntl -- with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir --with-curl --with-gd --with-mysqli --with- pdo-mysql --with-mcrypt --enable-mbstring --enable-opcache --enable-sockets --enable-zip --with-openssl

Description:
--prefix: Specify PHP Installation path;
--with-config-file-path: Specify the PHP configuration file storage path;
--enable-*: Enable/disable certain modules;
--with-*: Specify the paths of certain dependent libraries;
--without-*: disable certain dependent libraries;
Sometimes configure will prompt some error messages. Usually these error messages are due to missing dependencies or unsupported dependencies. System Configuration. At this time, you need to install related dependent libraries or modify the system configuration.

5. Compilation and installation

Execute the make command to compile, and then execute the make install command to install.

$ make && make install

At this point the PHP software has been installed and can be tested with the following command:

$ /usr/local/php/bin/php -v

2. Uninstall PHP

1. Check the installation location

Before uninstalling PHP, first check the location where PHP is installed on the server.

$ whereis php

2. Uninstall PHP

Execute the following command according to the actual installation location of PHP to uninstall PHP.

$ rm -rf /usr/local/php

3. Uninstall PHP dependent library

After uninstalling PHP, we need to further uninstall related Some dependent libraries.

$ yum remove libxml2 libcurl libjpeg libpng libmcrypt zlib

Summary

PHP is one of the most widely used website programming languages. The installation of PHP includes two processes: compilation and installation. Note: Before installation, you need to check whether some support libraries necessary to run PHP are installed. The process of uninstalling PHP is also relatively simple. You need to uninstall PHP and some dependent libraries related to it.

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