1連接

?

db.getCollection('test').find({})

?

// 連接Mongo數據庫 ? 數據庫地址:端口/賬號:密碼;

$mongo = new Mongo('mongodb://localhost:27017/admin:admin');

$this->link = new \MongoClient('mongodb://user:password@host:port/dbname);

?

// 選擇一個數據庫和要操作的集(如果沒有數據庫默認創建)

$collection = $mongo->selectDB('rrs_result')->selectCollection('content');

2添加

<?php

$content = array(

? ? 'title'=>'葉子-吳佰清',

? ? 'author'=>'吳佰清',

? ? 'url'=>'http://www.cnblogs.com/wubaiqing/archive/2011/09/17/2179870.html',

);

$collection->insert($ );

?

?

?

2查詢

查詢所有數據:

?

$result = $col->findOne($condition, $fields);

?

?

<?php

$rows = $collection->find();

?

foreach ($rows as $key => $val)

{

? ? var_dump($val);

}

?>

?

{

? ? "_id" : ObjectId("5a163546b845c5d0888269bf”),對象

? ? "title" : "葉子-吳佰清",

? ? "author" : "authoaar"

}

?

?

SELECT a,b FROM users ? 等于? ? ||$db->users->find(array()條件,字段array("a" => 1, "b" => 1));

SELECT * FROM users WHERE age=33 ? || $db->users->find(條件array("age" => 33));

SELECT a,b FROM users WHERE age=33 ? ||$db->users->find(條件array("age" => 33),字段 array("a" => 1, "b" => 1));

and

SELECT * FROM users WHERE a=1 and b='q' ? ? ||? $db->users->find(array("a" => 1, "b" => "q"));

order

SELECT * FROM users WHERE a=1 or b=2 ||$db->users->find(array('$or' => array(array("a" => 1), array("b" => 2))));

limit

SELECT * FROM users LIMIT 1 ||$db->users->find()->limit(1);

?

?

排序

SELECT a,b FROM users WHERE age=33 ORDER BY name ? ? || ? $db->users->find(array("age" => 33), array("a" => 1, "b" => 1))->sort(array(排序"name" => 1));

SELECT * FROM users ORDER BY name DESC ? ||? $db->users->find()->sort(array("name" => -1));

?

大于小于

SELECT * FROM users WHERE age>33 || $db->users->find(array("age" => array('$gt' => 33))); ? 大于

SELECT * FROM users WHERE age<33 || $db->users->find(array("age" => array('$lt' => 33)));

SELECT * FROM users WHERE age>33 AND age<=40 $db->users->find(array("age" => array('$gt' => 33, '$lte' => 40)));

?

like

SELECT * FROM users WHERE name LIKE "%Joe%" ||? $db->users->find(array("name" => new MongoRegex("/Joe/")));

SELECT * FROM users WHERE name LIKE "Joe%" ||? $db->users->find(array("name" => new MongoRegex("/^Joe/")));

?

distinct

SELECT DISTINCT last_name FROM users $db->command(array("distinct" => "users", "key" => "last_name"));

count

SELECT COUNT(*y) FROM users $db->users->count();

?

SELECT COUNT(*y) FROM users where AGE > 30 $db->users->find(array("age" => array('$gt' => 30)))->count();

?

SELECT COUNT(AGE) from users $db->users->find(array("age" => array('$exists' => true)))->count();

?

?

3

更改數據:

?

<?php

$where = array('title'=>'葉子-吳佰清');

$set = array('title'=>'葉子');

?

$collection->update($where,array(

? ? '$set'=>$set,

));

?>

?

UPDATE users SET a=1 WHERE b='q' $db->users->update(array("b" => "q"), array('$set' => array("a" => 1)));

UPDATE users SET a=a+2 WHERE b='q' $db->users->update(array("b" => "q"), array('$inc => array("a" => 2)));

?

4

<?php

$collection->remove(array(

? ? 'title'=>'葉子',

));

?>

?

DELETE FROM users WHERE z="abc" $db->users->remove(array("z" => "abc"));

?

?

?

4創建索引

? CREATE INDEX myindexname ON users(name) ||? $db->users->ensureIndex(array("name" => 1));

CREATE INDEX myindexname ON users(name,ts DESC) ||? $db->users->ensureIndex(array("name" => 1, "ts" => -1));

?

4explain顯示了mysql如何使用索引來處理select語句以及連接表。可以幫助選擇更好的索引和寫出更優化的查詢語句。

EXPLAIN SELECT * FROM users WHERE z=3 $db->users->find(array("z" => 3))->explain()

?

?

?

?

?

?

?

?

待解決

1update

$result = $col->update($condition,$data,$option);第三個參數是什么

?

$options = array(
? ? 'upsert' => false,
? ? 'multiple' => true,
);

?

?

?

?

?

?

?

?

?

4

$result = $col->aggregate($pipeline);

?

?

轉載于:https://www.cnblogs.com/keiweila/p/7884036.html

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