Update NewCommand.php

use the `extension_loaded` method to check if the 'zip' extension is loaded rather than checking for a class in the extension.

while probably an edge case, a their could be a user defined `\ZipArchive` class that would cause this conditional to pass, even when the extension is not loaded.

Author: browner12

src/NewCommand.php

@@ -40,7 +40,7 @@ protected function configure()
      */
     protected function execute(InputInterface $input, OutputInterface $output)
     {
-        if (! class_exists('ZipArchive')) {
+        if (! extension_loaded('zip')) {
             throw new RuntimeException('The Zip PHP extension is not installed. Please install it and try again.');
         }