当我try 使用以下代码在Ubuntu 16.04中安装php5时:
sudo apt-get install php5 php5-mcrypt
我收到以下错误:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package php5 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'php5' has no installation candidate
我已try 重新安装，但无济于事.
所有这些错误都是在我将15.10 Ubuntu更新到16.04之后遇到的
Ubuntu16.04附带PHP7作为标准，所以没有PHP5包
但是，如果您愿意，您可以添加PPA以获得这些软件包:
Remove all the stock php packages
列出dpkg -l | grep php| awk '{print $2}' |tr "\n" " "个已安装的php软件包，然后使用sudo aptitude删除不需要的软件包在此处清除您的_软件包_，或者如果您想直接删除它们，请使用:
sudo aptitude purge `dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
Add the PPA个
sudo add-apt-repository ppa:ondrej/php
Install your PHP Version
sudo apt-get update
sudo apt-get install php5.6
您可以安装php5.还有6个模块..
Verify your version
sudo php -v
基于https://askubuntu.com/a/756186/532957(谢谢@AhmedJerbi)