centos 7安装php 5 6—centos 7安装桌面：代码示例

CentOS 7 is a popular operating system for web servers, and installing PHP 5.6 on CentOS 7 can be done by following these steps:

1. Update the system: Before installing PHP, it's always a good idea to update the system to ensure you have the latest packages and security patches. You can use the following command to update the system:

shell

sudo yum update

2. Add the Webtatic repository: Webtatic is a third-party repository that provides newer versions of PHP for CentOS. You can add the Webtatic repository by running the following command:

shell

sudo rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

3. Install PHP 5.6: Once the Webtatic repository is added, you can install PHP 5.6 by running the following command:

shell

sudo yum install php56w

4. Verify the installation: After the installation is complete, you can verify if PHP 5.6 is installed by checking its version. You can use the following command to check the PHP version:

shell

php -v

This will display the PHP version installed on your CentOS 7 system.

To install a desktop environment on CentOS 7, you can use the following steps:

1. Install the GNOME Desktop: CentOS 7 uses the GNOME desktop environment by default. You can install it by running the following command:

shell

sudo yum groupinstall "GNOME Desktop"

2. Set the default target: CentOS 7 uses systemd as its init system, and you need to set the default target to graphical mode to start the desktop environment automatically on boot. You can use the following command to set the default target:

shell

sudo systemctl set-default graphical.target

3. Reboot the system: After setting the default target, you need to reboot the system for the changes to take effect. You can use the following command to reboot the system:

shell

sudo reboot

Once the system reboots, the GNOME desktop environment will be available for use.

Please note that these instructions assume you have administrative privileges on your CentOS 7 system.