Summary of common operations on MongoDB data in PHP

This article mainly summarizes and introduces the common operations of MongoDB in PHP in detail. Friends who need it can come and refer to it. I hope it will be helpful to everyone.

$mongodb = new Mongo();

//$cOnnection= new Mongo( “$dburl:$port” ); // connect to a
remote host (default port)

$mydb = $mongodb->mydb; // implicitly create database mydb

$mydb = $mongodb->selectDB(“mydb”); //Select the existing database directly

$collection = $mydb->mycollect; //Select the collection used, if it does not exist, it will be created automatically

$collection = $db->selectCollection(‘mydb’); // only select, not create

//insert a new record

$collection->insert(array(“name”=>”l4yn3”,
“age”=>”10”, “sex”:”unknown”));

//Modify record

$where = array(“name”=>”l4yn3”);

$update_item = array(‘$set’=>array(“age”=>”15”,
“sex”:”secret”));

$collection->update($where, $update_item);

$options[‘multiple’] = true; //The default is false, whether to change the matching multiple lines

$collection->update($where, $update_item, $options);

//Query the records

$myinfo =
$collection->findOne(array(“name”=>”l4yn3”));

$myinfo = $collection->findOne(array(“name”=>

“l4yn3”), array(“age”=>”15”));

//Search by condition:

$query = array(“name”=>”l4yn3”);

$cursor = $collection->find($query);
//Find documents satisfying $query in the $collectio collection

while($cursor->hasNext())

{

var_dump($cursor->getNext()); // returns the array

}

//Return the number of document records

$collection->count();

//Delete a database:

$connection->dropDB(“…”);

//List all available databases:

$m->listDBs(); //No return value

//Close the connection:

$connection->close();

Various parameter methods for connecting to the mongodb database in php

//Connect to localhost:27017

$cOnn = new Mongo();

//Connect to the default port of the remote host

$cOnn = new Mongo(‘test.com’);

//Connect to port 22011 of the remote host

$cOnn= new Mongo(‘test.com:22011’);

//MongoDB has username and password

$cOnn = new
Mongo(“mongodb://${username}:${password}@localhost”)

//MongoDB has a username and password and specifies the database blog

$cOnn = new
Mongo(“mongodb://${username}:${password}@localhost/blog”);

//Multiple servers

$cOnn = new
Mongo(“mongodb://localhost:27017,localhost:27018”);