/usr/bin/env: php: No such file or directory

/usr/bin/env: php: No such file or directory

If you are getting this error, It means you do not have certain packages.
You need to install them.

If you are using Ubuntu / Debian or any apt based Linux distribution,
Run following command.

$ sudo apt-get install php5-cli

If you are still facing this problem, try to install these packages.

$ sudo apt-get install php5

and

$ sudo apt-get install libapache2-mod-php5

If you are using Fedora / CentOS / RHEL,
Run following command.

$ sudo yum install php-cli

If you are still facing this problem, try to install this.

$ sudo yum install php