MongoDB Installation and use

I. MongoDB server-side installation, command-line statements

1. Go to the official website to download the latest MongoDB installation package, unzip--clip move--Rename
Cd/tmp
Curl-o http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.6.4.tgz
Tar zxf mongodb-linux-x86_64-2.6.4.tgz
MV Mongodb-linux-x86_64-2.6.4/usr/local/mongodb

2. Install--Create a Data folder---log files and folders
Cd/usr/local/mongodb

mkdir data

mkdir logs

CD logs
Touch Db.log

Cd.. /bin

./mongod--dbpath=/usr/local/mongodb/data--logpath=/usr/local/mongodb/logs/db.log--fork

3. Edit the configuration file, join the boot boot
Vim/etc/rc.local

/usr/local/mongodb/bin/mongod--dbpath=/usr/local/mongodb/data--logpath=/usr/local/mongodb/logs/db.log--fork

4. Open the MongoDB terminal
/usr/local/mongodb/bin/mongo

View Database Show DBS

Select or create a database use test

Create a new user table Db.user

Insert Data Db.user.save ({"A": 1, "B": 2});

Find the data used Db.user.find ();

View Table Show Tables | Show collections

Delete database Db.dropdatabase (); (* Enter database first, semicolon '; ')

Delete Table Db.cccc.drop (); Ibid. ）

Two. MongoDB PHP extension Installation

1. Select the appropriate version of MongoDB--http://pecl.php.net/package/mongo

Cd/tmp
Curl-o http://pecl.php.net/get/mongo-1.4.1.tgz
Tar zxf mongo-1.4.1.tgz
CD MONGO-1.4.1/

2. Compile--need to know phpize and Php-config Road strength
Whereis phpize
Whereis Php-config

/usr/bin/phpize

Ls

./configure--with-php-config=/usr/bin/php-config

Make && make install

Cd/usr/lib64/php/modules

Ls

Vim/etc/php.ini

Extension = mongo.so

Restart httpd

Three. PHP Operation MongoDB

$conn =new Mongo ();//The simplest connection
$db = $conn->test;//Select or create test database
$collection = $db->user;//Select table

New
$obj = Array ("title" = "java". Rand (1,1111), "Author" = "Bill Watterson", "Age" =>mt_rand (1,100));
$collection->insert ($obj);
echo $obj [' _id ']. ' <br> ';

Delete Collection
$collection->remove ();

Modify
$where = Array (' Author ' = ' Bill Watterson ');
$newdata = Array (' $set ' =>array (' title ' = ' ngix1111 '));
$upsert = Array (' Upsert ' =>false); If no modified data is present, the default is false to insert this data
$multi = Array (' multiple ' =>true); Whether to modify all matching records, default false to modify only one
$collection->update ($where, $newdata, $multi);

Inquire
$collection->count ();//Total

Note: $GT is greater than, $GTE is greater than or equal, $lt is less than, $lte is less than or equal, $ne is not equal, $exists does not exist
$where = Array (' Age ' =>array (' $gt ' =>10, ' $lte ' =>40));
echo $collection->count ($where);

$query = Array (' Age ' =>array (' $gt ' =>60)); Query criteria
$fields = Array (' _id ' =>false, ' author ' =>false);//Display field
$cursor = $collection->find ();//Get All records
$cursor = $collection->find ($query, $fields);

Sort
$cursor->sort (Array (' age ' =>-1);//(-1 reverse, 1 positive order)
Show only partial records
$cursor->limit (4);//Display only 100 rows

foreach traversal
foreach ($cursor as $key = = $value) {
echo "<pre>";
Print_r ($value);
echo "</pre>";
}

While traversal
/*
while ($cursor->hasnext ()) {
$r = $cursor->getnext ();
echo "<pre>";
Print_r ($R);
echo "</pre>";
}
*/

$array = Iterator_to_array ($cursor);//array key name is $id
$conn->close ();

MongoDB installation and use