shivaneej / MongoDB-with-PHP

Connect MongoDB with PHP Cheatsheet

MongoDB with PHP Cheatsheat

Terminologies

RDBMS	MongoDB
RDBMS	MongoDB
Database	Database
Table	Collection
Tuple/Row	Document
column	Field
Primary Key	Primary Key (Default key _id provided by mongodb itself)

Install Composer

composer require "mongodb/mongodb=^1.0.0"

Insert in PHP file

require 'vendor/autoload.php';

Connect to MongoDB Client

$client = new MongoDB\Client();

Select Database

$db = $client->dbname;

Select Collection

$collection = $db->collname;

Shorthand Selection

$collection = (new MongoDB\Client)->dbname->collectionName;

Queries

• Get all documents

 $cursor = $collection->find();

Iterate using for loop

$collection->find().pretty() will display documents in pretty format.

• Get document(s) based on a single field
  

Similar to Select * from table where attribute = value

 $cursor = $collection->findOne(array('email'=>$email));
 $cursor = $collection->find({ status: "A" }, { item: 1, status: 1 }) //similar to Select item,status from table where status='A'
 //if any field:0, that field will not be shown

$cursor["attributename"] will give value of that attribute

• limit(n) will return only n documents

$cursor = $collection->find(array('email'=>'[e-mail]'));
foreach ($cursor as $key){
echo $key['email'];
}

• Get documnet(s) based on multiple fields

$res = $coll->find(['email'=>'[e-mail]','password'=>'123']);
//iterate using for loop

• Insert Document

$result = $collection->insertOne([
    'username' => 'admin',
    'email' => '[e-mail]',
    'name' => 'Admin User',
]);

$result->getInsertedCount() will return the number of documents inserted.

• Insert Multiple Documents

$res=$coll->insertMany([
		['email'=>'[e-mail]','password'=>'123'],
		['email'=>'[e-mail]','password'=>'111'],
		['email'=>'[e-mail]','password'=>'123'],
		['email'=>'[e-mail]','password'=>'111']]);

• Delete Document

$var= $collection->deleteOne( ["username"=>"admin"]);
echo $var->getDeletedCount();

• Delete Multiple Documents

$var= $collection->deleteMany( ["username"=>"admin"]);

$var->getDeletedCount() will return the number of documents deleted.

• Count

$c = $coll->count();