已安装 PHP 7.0，但版本未更改

Question

I'm trying to install PHP 7.0, which works. But when I check my php -v in the cmd, it still says 5.5.36.

I tried it via php-liip, homebrew, install manually and via cmd. Nothing works. When I change version of PHP in MAMP (which I work with to try and install composer in a directory, that I need PHP 5.6 or higher for) i still doesn't matter.

Answer 1

The PHP 5.5 you're seeing was installed by Apple and is a default on your computer. It was installed at /usr/bin/php .

All of the installers you've used will not overwrite Apple's default installation - they will instead opt to create their own directories or use /usr/local/bin/ instead (thus the PHP interrupter would be installed at /usr/local/bin/php ). In other words, you almost certainly have multiple php 's ready to use right now. The next thing you need to do is tell bash (the default terminal/cmd on a Mac) to use the newly installed PHP interrupter.

When you run $ php on your command line, bash checks for an executable file on each of paths stored in the PATH environment variable. Once it finds one, it decides that that executable is the one you're looking for and runs that program. As of now, it's finding Apple's PHP 5.5 before it finds your fresh install of PHP 7.0 - assuming it finds PHP 7.0 at all.

You can fix this by updating PATH to check wherever PHP 7 is installed first. Instructions to do so can be found on SuperUser.StackExchange:

How should I set the PATH variable on my Mac so the Homebrew-installed tools are found?

Answer 2

To change php version in Ubuntu, try to use this comand

sudo update-alternatives --config php

and then select version what you need