The `php` command cannot be found. Please verify that PHP is installed, or set the `php.executables` setting.
Step 1 - Go to 'Environmental Variables'.
Step 2 - Find PATH variable and add the path to your PHP folder.
Step 3 - For 'XAMPP' users put 'C:xamppphp' and 'WAMP' users put 'C:wamp64inphpphp7.1.9' ) and save.