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Well here's an odd situation I've found. I've been using PHP and MongoDB together on a project, and updated the associated software. After the upgrade, I did make sure to update the new conf files and all is well --- except when I try to use the MongoClient class, I get the following fatal error:
Fatal error: Uncaught Error: Class 'MongoClient' not found in /srv/http/test.php
So my first instinct was to check my /etc/php/php.ini to make sure that mongodb.so was correctly included. I found it after the other extension lines:
extension=mcrypt.so
extension=zip.so
extension=mongodb.so ; <--- here it is
With that checked, I loaded up a quick phpinfo() script to check that I was using the right php.ini file, and confirmed that I am. And not only that, the mongodb driver also appears to be loaded correctly!
Loaded Configuration File /etc/php/php.ini
. . .
mongodb support enabled
mongodb version 1.1.1
mongodb stability stable
libmongoc version 1.3.1-dev
libbson version 1.3.0
So I restarted httpd and tried again. No dice, still can't find the MongoClient class. So I tried to install it from pecl instead of my distribution's package manager, and the situation is the same as described above.
So here's a quick rundown of the situation:
phpinfo().pecl and my distro's package manager.Other info that may be useful:
mongod is running
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Well I found the answer.
The class has been changed. It's no longer \MongoClient, and is now \MongoDB\Driver\Manager
All that I need is a refactor. The new driver is designed to be a lower-level driver for high-level functionality to be filled with userspace libraries, so anyone else upgrading to php7, make sure you check that you'll be comfortable with the new driver, or that the userspace libraries exist when you do it. Hopefully this question/answer helps others in the future.
Commenter ianaz below has posted this good userspace library for MongoDB: http://mongodb.github.io/mongo-php-library/
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