问题
On CentOS 7, I installed PHP 7.1.
Then I installed composer with:
cd /tmp
curl -sS https://getcomposer.org/installer | php71 --> used php71 instead of php, php didn't work
mv composer.phar /usr/local/bin/composer
Then, when using composer, I get:
/usr/bin/env: php: No such file or directory
When using sudo composer, I get:
sudo: composer: command not found
回答1:
As @alexhowansky suggested, I ran the following command:
sudo ln -s /usr/bin/php71 /usr/bin/php
Now the composer command works. Thanks
回答2:
You need to add /usr/local/bin to your PATH variable. The easiest way is to throw it in your profile or bash_profile located at either:
- ~/.profile
- ~/.bash_profile
You would add the following to one of those files:
export PATH="$PATH:/usr/local/bin/"
For more details, see: https://unix.stackexchange.com/questions/26047/how-to-correctly-add-a-path-to-path
If you are logged in when you add it, you can force Linux to read the file again and update the path (once the changes are made) by using source from the bash prompt:
source ~/.bash_profile
As for the php7 vs. php issue, as Alex suggested, you can make a symlink so it works kinda like an alias.
回答3:
This worked for me [Centos 7 with php 7.1] :
yum install php71w-cli
回答4:
You need to install the cli package.
yum install php71u-cli is what I needed to do for IUS php.
来源：https://stackoverflow.com/questions/43878731/composer-installed-but-get-usr-bin-env-php-no-such-file-or-directory