PHP7 连接 MongoDB 语法如下

PHP7 连接 MongoDB 语法如下：

$manager = new MongoDBDriverManager("mongodb://localhost:27017");

插入数据

将 name 为"菜鸟教程" 的数据插入到 test 数据库的 runoob 集合中。

<?php
$bulk = new MongoDBDriverBulkWrite;
$document = ["_id" => new MongoDBBSONObjectID, "name" => "菜鸟教程"];

$_id= $bulk->insert($document);

var_dump($_id);

$manager = new MongoDBDriverManager("mongodb://localhost:27017");  
$writeConcern = new MongoDBDriverWriteConcern(MongoDBDriverWriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite("test.runoob", $bulk, $writeConcern);
?>

读取数据

这里我们将三个网址数据插入到 test 数据库的 sites 集合，并读取迭代出来：

<?php
$manager = new MongoDBDriverManager("mongodb://localhost:27017");  

// 插入数据
$bulk = new MongoDBDriverBulkWrite;
$bulk->insert(["x" => 1, "name"=>"菜鸟教程", "url" => "http://www.runoob.com"]);
$bulk->insert(["x" => 2, "name"=>"Google", "url" => "http://www.google.com"]);
$bulk->insert(["x" => 3, "name"=>"taobao", "url" => "http://www.taobao.com"]);
$manager->executeBulkWrite("test.sites", $bulk);

$filter = ["x" => ["$gt" => 1]];
$options = [
    "projection" => ["_id" => 0],
    "sort" => ["x" => -1],
];

// 查询数据
$query = new MongoDBDriverQuery($filter, $options);
$cursor = $manager->executeQuery("test.sites", $query);

foreach ($cursor as $document) {
    print_r($document);
}
?>

输出结果为：

stdClass Object
(
    [x] => 3
    [name] => taobao
    [url] => http://www.taobao.com
)
stdClass Object
(
    [x] => 2
    [name] => Google
    [url] => http://www.google.com
)

更新数据

接下来我们将更新 test 数据库 sites 集合中 x 为 2 的数据：

<?php
$bulk = new MongoDBDriverBulkWrite;
$bulk->update(
    ["x" => 2],
    ["$set" => ["name" => "菜鸟工具", "url" => "tool.runoob.com"]],
    ["multi" => false, "upsert" => false]
);

$manager = new MongoDBDriverManager("mongodb://localhost:27017");  
$writeConcern = new MongoDBDriverWriteConcern(MongoDBDriverWriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite("test.sites", $bulk, $writeConcern);
?>

接下来我们使用 "db.sites.find()" 命令查看数据的变化，x 为 2 的数据已经变成了菜鸟工具：

删除数据

以下实例删除了 x 为 1 和 x 为 2的数据，注意 limit 参数的区别：

<?php
$bulk = new MongoDBDriverBulkWrite;
$bulk->delete(["x" => 1], ["limit" => 1]);   // limit 为 1 时，删除第一条匹配数据
$bulk->delete(["x" => 2], ["limit" => 0]);   // limit 为 0 时，删除所有匹配数据

$manager = new MongoDBDriverManager("mongodb://localhost:27017");  
$writeConcern = new MongoDBDriverWriteConcern(MongoDBDriverWriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite("test.sites", $bulk, $writeConcern);
?>

更多使用方法请参考：http://php.net/manual/en/book.mongodb.php。