php7.4.20（Linux7）安装扩展插件实例-gd库

一、处理相关依赖

1、下载依赖包

wget http://mirror.centos.org/centos/7/os/x86_64/Packages/libjpeg-turbo-1.2.90-8.el7.x86_64.rpm
wget http://mirror.centos.org/centos/7/os/x86_64/Packages/libjpeg-turbo-devel-1.2.90-8.el7.x86_64.rpm
wget http://mirror.centos.org/centos/7/os/x86_64/Packages/libpng-1.5.13-8.el7.x86_64.rpm
wget http://mirror.centos.org/centos/7/os/x86_64/Packages/libpng-devel-1.5.13-8.el7.x86_64.rpm
wget http://mirror.centos.org/centos/7/os/x86_64/Packages/freetype-2.8-14.el7.x86_64.rpm
wget http://mirror.centos.org/centos/7/os/x86_64/Packages/freetype-devel-2.8-14.el7.x86_64.rpm

2、查看有没有其他版本的先删除

注意：如果已经有了上述版本的安装包，则无需进行3,4的重装

rpm -qa | grep libjpeg
rpm -qa | grep libpng
rpm -qa | grep freetype

3、删除相关包

yum remove 相关包

4、安装 包

rpm -ivh libjpeg-turbo-1.2.90-8.el7.x86_64.rpm
rpm -ivh libjpeg-turbo-devel-1.2.90-8.el7.x86_64.rpm
rpm -ivh libpng-1.5.13-8.el7.x86_64.rpm
rpm -ivh libpng-devel-1.5.13-8.el7.x86_64.rpm
rpm -ivh freetype-2.8-14.el7.x86_64.rpm
rpm -ivh freetype-devel-2.8-14.el7.x86_64.rpm

二、编译安装扩展

1、进入源码

cd /root/php-7.4.20/ext/gd

2、执行phpize

/usr/local/php7/bin/phpize

为什么要使用phpize命令呢？因为当我们需要再添加一些模块，但是又不想重新编译php时，这时我们就可以使用phpize命令。

3、安装配置

./configure --with-php-config=/usr/local/php7/bin/php-config 
make -j 2
make install

三、在php.ini中添加扩展

1、获取php.ini位置

[root@topunix gd]# php -i|grep ini

2、php.ini增加扩展

/usr/local/php7/php.ini

extension=gd.so