In PHP how to check if the CORRECT mongodb PHP driver is installed for the corresponding mongodb.
The link below tells how to check if mongodb PHP driver is installed, but does not tell if that driver is correct/compatible for the corresponding mongodb.
http://stackoverflow.com/questions/11134959/check-if-mongodb-php-driver-is-installed
For example, if I have PHP version 5.3.10 and have mongodb 2.2.2, the command
echo extension_loaded("mongo") ? "loaded\n" : "not loaded\n";
will say loaded, however, mongodb is not going to work properly because for mongodb 2.2.2, you need the latest PHP not 5.3.10
I think, you're talking about driver, not PHP itself. PHP has no built-in support to access \Mongo* classes until you compile and load special extension.
Since you're talking about the latest version of MongoDB, I think you couldn't use some parts of its functionality because you had some old driver (say, 1.2.12). When you upgraded PHP, you, probably, updated the driver to the latest (1.3.0) stable version as well. That version of driver was submitted a couple of days ago, and it supports all the latest features MongoDB provides.
Anyway, if you'd like to check which version of driver you have, you can call phpinfo(8) from your PHP and look though the output for the mongo section, where the version of driver is displayed.
Related
I have MongoDB installed in my cPanel/WHM CentOS server.
I have the PHP Drivers installed.
I have Port 27017 opened.
This works $m = new MongoDB\Driver\Manager();
These do not work:
$m = new Mongo();
$m = new MongoClient();
Both result in Fatal error: Class 'Mongo' not found in ... and Fatal error: Class 'MongoClient' not found in ....
Does anyone know why?
Not a duplicate. That SO Q is for a Windows machine. My server is Linux/CentOS
From My Hosting Provider's Sys Admin:
It looks like "mongo" is a seperate php module from "mongodb", and that "mongodb" is the newer one:
root#host [~/support/642192]# pecl search mongo
Retrieving data...0%
.Matched packages, channel pecl.php.net:
Package Stable/(Latest) Local
mongo 1.6.12 (stable) MongoDB database driver (legacy)
mongodb 1.1.2 (stable) 1.1.2 MongoDB driver for PHP
Did you need the legacy module "mongo" instead of "mongodb"? Here is hte pecl page for the package you have:
https://pecl.php.net/package/mongodb
and here is the one for the legacy module:
https://pecl.php.net/package/mongo
Short answer
You cannot use the following classes with the new mongodb driver:
$m = new Mongo();
$m = new MongoClient();
This corresponds to the legacy mongo driver. Instead you should use MongoDB\Client through the MongoDB PHP Library.
Long answer
All right. I lost some hair on this story as well, because the documentation about Mongo and PHP is extremely confusing. The options are then to get mad, bald, or both. But i found courage and finally got it. So this might help you.
1. MongoDB driver: mongo vs mongodb
First of all, you must clarify which MongoDB driver you use: either mongo (legacy) or mongodb (new). Note the smaller case. First source of confusion, the mongo driver is sometimes referred to as MongoDB (legacy) PHP driver.
https://docs.mongodb.com/ecosystem/drivers/php/
Second source confusion, the version numbers are not logical, as mongo driver had 1.5, 1.6 but mongodb starts again from 1.0. So, going forward, but backwards, it's just insane... Imo they should have started from 2.0!
The choice of the driver depends on your PHP version:
PHP5.3: you can only use the mongo legacy driver (1.5, 1.6)
PHP7.0: you can only use the new mongodb driver (1.1+)
PHP5.4, 5.5, 5.6: here you have the choice between the old mongo (1.5, 1.6) or the new mongodb (1.0, 1.1+)
But it's not over. The driver is just a low-level interface (aka PHP extension). Now we come to the programmer's API and it becomes even worse.
2. API: MongoClient vs MongoDB\Driver
Third source of confusion, the low-level drivers and the API classes have overlapping names.
mongo legacy driver -> classes MongoClient, MongoDB (!), ...
mongodb driver -> classes MongoDB\Driver, MongoDB\BSON, ...
But it's not over yet. The old mongo driver could be used directly. The new mongodb driver provides classes (such as MongoDB\Driver) but it is actually a low-level API. You are not supposed to use it directly, you could, but it's not convenient. Instead you should use the MongoDB PHP Library which gives an API similar to the old MongoClient classes...!
3. MongoDB PHP Library (with mongodb) -> MongoDB\Client
https://docs.mongodb.com/php-library/master/
So if you installed mongodb, you should install this MongoDB PHP Library in order to use MongoDB\Client. This class is supposed to be similar to the old MongoClient, but there are some differences such as the sort and projection.
To install this library you are advised to use the tool called Composer which allows to you download these classes into your repo. Then use the autoloader provided with Composer.
And here we come to the 4th source of confusion, MongoDB PHP Library is versioned from 1.0 even though you are using the last mongodb driver in version 1.1 ! It's certainly obvious for those who developed this stuff but very hard to follow for lambda users. Crazy confusing stuff.
There are also many other libraries above the drivers, but i don't know them at all so i won't go more into them (https://docs.mongodb.com/ecosystem/drivers/php-libraries/).
TL;DR
Depending on your PHP version, clarify which MongoDB driver to use: mongo (legacy) or mongodb (new) ?
with mongo you can use MongoClient class directly.
with mongodb you should also install MongoDB PHP Library to use MongoDB\Client class.
Good luck! :)
Looks like you haven't enabled or installed php_mongo extension.
After enabling it restart apache and check phpinfo() to see if its properly enabled.
You have use the correct namespace. As stated in their docs the namespace for the client is MongoDB\Client. Alterantivly you can use a use statement like this use MonogoDB\Client.
Route::get('/', function () {
$tweets = Tweet::all();
return view('welcome', ['tweets' => $tweets]);
});
I am making a laravel app using mongodb.
When I go to '/', I get an error in the mongod terminal that says
AssertionException handling request, closing client connection: 10304 Client Error: Remaining data too small for BSON object
This is my tweet model (in App\Tweet):
namespace App;
use Jenssegers\Mongodb\Model as Eloquent;
class Tweet extends Eloquent {
protected $collection = 'tweets_collection';
}
There are at least two reasons why this issue (Client Error: Remaining data too small for BSON object) appears:
1. PHP MongoDB driver is not compatible with MongoDB installed on the machine.
(originally mentioned in the first answer).
Examine PHP driver version set up on your machine on <?php phpinfo(); page:
Retrieve MongoDB version in use with:
mongod --version\
# db version v3.2.0
Use compatibility table on MongoDB website to see whether examined PHP MongoDB driver version is compatible with MongoDB version:
If versions are not compatible, it is required to uninstall one of the existing parts and install compatible version. From my own experience, it is much easier to change PHP MongoDB driver, since only different .so extension file is required.
2. Two PHP MongoDB drivers are installed on the machine.
Since MongoClient is deprecated, many tutorials and articles online (including official mongo-php-driver repository on Github) now guides to install mongodb, not mongo PHP driver. Year+ before, everyone was pointing at mongo extension, however.
Because of this change from mongo to mongodb, we might get both extensions defined in php.ini file. Just make sure, only one extension is defined under "Dynamic Extension" section:
Hope somebody gets this answer useful when looking for a solution to fix "Remaining data too small for BSON object" error working with MongoDB through PHP MongoDB driver.
The issue was that Laravel was unable to communicate with MongoDB because I was using the mongodb-1.1 php driver and MongoDB 3.2 together. According to the table found on this page: https://docs.mongodb.org/ecosystem/drivers/php/, these two versions are not compatible. I uninstalled MongoDB 3.2 and installed MongoDB 3.O, and the problem was solved.
I use php_oci8.dll in our application to access an Oracle 8 database server. I upgraded our PHP version from 5.3 to 5.6.5 and now there is no php_oci8.dll in the ext/ folder.
Can I just copy it from the old version?
php_oci8.dll is a very old library used with very old version of Oracle
Now there is a newer version for this library, like php_oci8_11g
The question is : what is the version of Oracle that you use ?
From http://php.net/manual/en/oci8.requirements.php
The OCI8 1.4 extension is included with PHP 5.3, PHP 5.4 and PHP 5.5. It is also available from PECL.
Read: not incliuded in PHP 5.6 (which is a good thing, not pulling in every single DB interface into the main tree)
Just download that stuff from PECL.
You might need to rebuild it from source, though, if whatever Oracle DB client Libraries you use don't match the needs of the OCI8 in its current version
EDIT: Don't do this, OP. Are you really using Oracle 8i? That has seen its last update in 2003 and should not be used for security reasons, any more. Seriously, how do you even run this on a modern Operating system? Or do you have a Windows XP machine running as a server exposed to the internet somewhere?!
PHP 5.5 comes bundled with SQLite 3.7.7.1.
There have been ~ 20 newer releases of SQLite since then, and www.sqlite.org recommends to upgrade. In my case, I need a feature available only since SQLite 3.8.0.
As far as I understood, SQLite is not dynamically linked in PHP 5.5 but the sqlite source code is compiled into the built-in PHP PDO driver for SQLite.
Is there a way to use a current SQLite version in PHP without rebuilding PHP from source (e.g., somehow dynamically linking sqlite.dll)?
I could produce a fresh php_pdo_sqlite.dll to drop into an existing PHP 5.5 Windows installation that includes the current version (3.8.1) of SQLite:
I followed the nice step-by-step guide to build PHP on Windows using Visual Studio 2012 Express (available from http://www.microsoft.com/en-us/download/details.aspx?id=34673).
In the PHP 5.5 sources, I have replaced the outdated sqlite amalgamation file ext\sqlite3\libsqlite\sqlite.c by the current one from http://www.sqlite.org/download.html.
I used configure --enable-pdo=shared --with-pdo-sqlite=shared.
This creates php_pdo_sqlite.dll that I could drop into an existing PHP 5.5 installation, replacing the previous (bundled) version of that file.
<?php
$dbh = new PDO('sqlite:test1.sqlite');
print_r("SQLite version " . $dbh->query('select sqlite_version()')->fetch()[0]);
$dbh = null;
?>
confirms:
SQLite version: 3.8.1
I have successfully configured php in IIS. sample php pages working fine. now i want to connect it to sql server i tried it by downloading a mssql .dll file in ext folder,I also tried by installing a extension for windows driver, then also it is not working. please help to sort out this issue. I am Using php5.3.19 for the same.
In order to use PHP 5.3 with SQL Server (2005 and above), you will need the Microsoft Drivers for PHP for SQL Server. There are two versions available: 2.0 and 3.0. 3.0 includes support for SQL Server 2012 and PHP 5.4.
You can find instructions for installing the dlls and interfacing with SQL Server in a TechNet article.
To install the extensions, you must move them into your ext folder and add a line to php.ini to load them, like the following:
extension=php_sqlsrv_53_nts_vc9.dll
Once this is done, restart the web server and load phpinfo in order to see if the extension has loaded. If it has loaded correctly, you should see a "sqlsrv" section in PHPInfo.
When the time comes for you to begin writing PHP that connects to SQL Server, make sure you have installed the native client. The current version is the SQL Server 2012 Native Client. References for the API are available on TechNet and PHP.net.
Finally, consider upgrading to PHP 5.4. The 3.0 versions of the drivers support 5.4 but the 2.0 versions do not; if you cannot install 3.0 on your system, you can find a 5.4-compatible version of the DLL (sqlsrv-5.4-nts-snap.zip or
sqlsrv-5.4-ts-snap.zip) on PHP.net. I have had good results with these versions.