To use mongodb with php you need to use mongodb php driver. Download the driver from the urlDownload PHP Driver. Make sure to download latest release of it. Now unzip the archive and put php_mongo.dll in your PHP extension directory ("ext" by default) and add the following line to your php.ini file:
extension=php_mongo.dll
Make a connection and Select a database
To make a connection, you need to specify database name, if database doesn't exist then mongodb creates it automatically.
Code snippets to connect to database would be as follows:
<?php // connect to mongodb $m = new MongoClient(); echo "Connection to database successfully"; // select a database $db = $m->mydb; echo "Database mydb selected"; ?>
When program is executed, it will produce the following result:
Connection to database successfully Database mydb selected
Create a collection
Code snippets to create a collection would be as follows:
<?php // connect to mongodb $m = new MongoClient(); echo "Connection to database successfully"; // select a database $db = $m->mydb; echo "Database mydb selected"; $collection = $db->createCollection("mycol"); echo "Collection created succsessfully"; ?>
When program is executed, it will produce the following result:
Connection to database successfully Database mydb selected Collection created succsessfully
Insert a document
To insert a document into mongodb, insert() method is used.
Code snippets to insert a documents:
<?php // connect to mongodb $m = new MongoClient(); echo "Connection to database successfully"; // select a database $db = $m->mydb; echo "Database mydb selected"; $collection = $db->mycol; echo "Collection selected succsessfully"; $document = array( "title" => "MongoDB", "description" => "database", "likes" => 100, "url" => "http://www.tutorialspoint.com/mongodb/", "by", "tutorials point" ); $collection->insert($document); echo "Document inserted successfully"; ?>
When program is executed, it will produce the following result:
Connection to database successfully Database mydb selected Collection selected succsessfully Document inserted successfully
Find all documents
To select all documents from the collection, find() method is used.
Code snippets to select all documents:
<?php // connect to mongodb $m = new MongoClient(); echo "Connection to database successfully"; // select a database $db = $m->mydb; echo "Database mydb selected"; $collection = $db->mycol; echo "Collection selected succsessfully"; $cursor = $collection->find(); // iterate cursor to display title of documents foreach ($cursor as $document) { echo $document["title"] . "\n"; } ?>
When program is executed, it will produce the following result:
Connection to database successfully Database mydb selected Collection selected succsessfully { "title": "MongoDB" }
Update a document
To update a document , you need to use update() method.
In the below given example we will update the title of inserted document to MongoDB Tutorial. Code snippets to update a document:
<?php // connect to mongodb $m = new MongoClient(); echo "Connection to database successfully"; // select a database $db = $m->mydb; echo "Database mydb selected"; $collection = $db->mycol; echo "Collection selected succsessfully"; // now update the document $collection->update(array("title"=>"MongoDB"), array('$set'=>array("title"=>"MongoDB Tutorial"))); echo "Document updated successfully"; // now display the updated document $cursor = $collection->find(); // iterate cursor to display title of documents echo "Updated document"; foreach ($cursor as $document) { echo $document["title"] . "\n"; } ?>
When program is executed, it will produce the following result:
Connection to database successfully Database mydb selected Collection selected succsessfully Document updated successfully Updated document { "title": "MongoDB Tutorial" }
Delete a document
To delete a document , you need to use remove() method.
In the below given example we will remove the documents that has title MongoDB Tutorial. Code snippets to delete document:
<?php // connect to mongodb $m = new MongoClient(); echo "Connection to database successfully"; // select a database $db = $m->mydb; echo "Database mydb selected"; $collection = $db->mycol; echo "Collection selected succsessfully"; // now remove the document $collection->remove(array("title"=>"MongoDB Tutorial"),false); echo "Documents deleted successfully"; // now display the available documents $cursor = $collection->find(); // iterate cursor to display title of documents echo "Updated document"; foreach ($cursor as $document) { echo $document["title"] . "\n"; } ?>
When program is executed, it will produce the following result:
Connection to database successfully Database mydb selected Collection selected succsessfully Documents deleted successfully
In the above given example second parameter is boolean type and used for justOne field of remove()method.
Remaining mongodb methods findOne(), save(), limit(), skip(), sort() etc works same as explained in above tutorial.
