Common MongoDB database operation PHP code

$conn = new Mongo();
//can be abbreviated as
//$conn=new Mongo(); #Connect to local host, default port.
//$conn= new Mongo(“172.21.15.69″); #Connect to the remote host
//$conn=new Mongo(“xiaocai.loc:10086″); #Connect to the remote host on the specified port
//$conn=new Mongo(“xiaocai. loc",array("replicaSet"=>true)); #Load balancing
//$conn=new Mongo("xiaocai.loc",array("persist"=>"t")); #Persistent connection
//$conn=new Mongo(“mongodb://sa:123@localhost”); #With username and password

#Select test database
$db=$conn->test;
//$db= $conn->selectDB("test"); #Second way of writing

#Select collection (select "table")
$collection=$db->user;
//$collection=$db-> selectCollection("user"); #The second way of writing

#Insert operation

$data=array("uid"=>"zz123","user_name"=>"Zhang San");
$result= $collection->insert($data); #Simple insertion
echo "Insert data id".$data["_id"];

exit;

#Insert operation safe insertion
$data=array("uid "=>"zz124","user_name"=>"李思");
$result=$collection->insert($data,true); #Used to wait for MongoDB to complete the operation to determine whether it was successful. (This parameter will be more useful when a large number of records are inserted)

#Modification operation
$where=array("uid"=>"zz123");
$newdata=array("user_name"=>"张三三","tel"=>"123456789");
$result=$collection->update($where,array('$set'=>$newdata));

#Replace Update
$ where=array("uid"=>"zz124");
$newdata=array("user_age"=>"22","tel"=>"123456789");
$result=$collection-> ;update($where,$newdata);


#Batch update
$where=array("uid"=>'zz');
$newdata=array("user_name"=>"zz"," money"=>1000);
$result=$collection->update($where,array('$set'=>$newdata),array('multiple'=>true));

# Automatic accumulation
$where=array('money'=>1000);
$newdata=array('user_name'=>'edit');
$result=$collection->update($where,array( '$set'=>$newdata,'$inc'=>array('money'=>-5)));


#Delete node
$where=array('uid'=>' zz124');
$result=$collection->update($where,array('$unset'=>'tel'));//Delete node tel

#Delete data
$collection->remove (array('uid'=>'zz124'));

#Delete the specified MongoId
$id = new MongoId('4d638ea1d549a02801000011');
$collection->remove(array('_id'=>( object)$id));

#Query data Note: $gt means greater than, $gte means greater than or equal to, $lt means less than, $lte means less than or equal to, $ne means not equal to, $exists does not exist
echo 'count :'.$collection->count().""; #All
echo 'count:'.$collection->count(array('uid'=>'zz123'))." "; #You can add conditions
echo 'count:'.$collection->count(array('age'=>array('$gt'=>10,'$lte'=> ;30))).""; #greater than 50 and less than or equal to 74
echo 'count:'.$collection->find()->limit(5)->skip(0)-> ;count(true).""; #Get the actual number of results returned

#All documents in the collection
$cursor = $collection->find()->snapshot();
foreach ($ cursor as $id => $value) {
 echo "$id: "; var_dump($value);
 echo "";
}

#Query a piece of data
$cursor = $collection->findOne();

#Exclude the column if false is not displayed
$cursor = $collection->find()->fields(array("age" =>false,"tel"=>false));
#Specify column true to display
$cursor = $collection->find()->fields(array("user_name"=>true)) ;

#(tel,age nodes exist) and age!=0 and age<50
$where=array('tel'=>array('$exists'=>true),'age'=> array('$ne'=>0,'$lt'=>50,'$exists'=>true));
$cursor = $collection->find($where);

#Paging Get the result set
$cursor = $collection->find()->limit(5)->skip(0);

#Sort
$cursor = $collection->find()->sort (array('age'=>-1,'type'=>1)); #1 means descending order -1 means ascending order, the order of parameters affects the sorting order
#index
$collection->ensureIndex(array( 'age' => 1,'money'=>-1)); #1 means descending order -1 means ascending order
$collection->ensureIndex(array('age' => 1,'money'=> ;-1),array('background'=>true)); #Index creation is run in the background (the default is to run synchronously)
$collection->ensureIndex(array('age' => 1,' money'=>-1),array('unique'=>true)); #This index is unique



#Get query results
$cursor = $collection->find();
$ array=array();
foreach ($cursor as $id => $value) {
 $array[]=$value;
}

#Close connection
$conn->close();
?> ;

MongoDB, PHP