Check if MongoDB PHP Driver is installed

问题

I am developing an install script for my application, how would I go about checking if MongoDB is installed or not with a PHP driver on a server??

Many thanks

回答1:

The easiest way of checking it would be to run:

echo extension_loaded("mongo") ? "loaded\n" : "not loaded\n";

See also: http://php.net/manual/en/function.extension-loaded.php

回答2:

get_loaded_extensions — Returns an array with the names of all modules compiled and loaded.

print_r(get_loaded_extensions());

回答3:

You can check by using class_exists

if (class_exists('Mongo')) {
   // MongoDB is installed
}
else {
   // MongoDB is not installed
}

来源：https://stackoverflow.com/questions/11134959/check-if-mongodb-php-driver-is-installed