MongDB PHP7

2022-09-06 17:14 更新

本文教程只適合在 PHP7 的環(huán)境,如果你是 PHP5 環(huán)境,你可以參閱 PHP MongDB 安裝與使用

PHP7 Mongdb 擴(kuò)展安裝

我們使用 pecl 命令來(lái)安裝:

$ /usr/local/php7/bin/pecl install mongodb

執(zhí)行成功后,會(huì)輸出以下結(jié)果:

……
Build process completed successfully
Installing '/usr/local/php7/lib/php/extensions/no-debug-non-zts-20151012/mongodb.so'
install ok: channel://pecl.php.net/mongodb-1.1.7
configuration option "php_ini" is not set to php.ini location
You should add "extension=mongodb.so" to php.ini

接下來(lái)我們打開(kāi) php.ini 文件,添加 extension=mongodb.so 配置。

可以直接執(zhí)行以下命令來(lái)添加。

$ echo "extension=mongodb.so" >> `/usr/local/php7/bin/php --ini | grep "Loaded Configuration" | sed -e "s|.*:\s*||"`

注意:以上執(zhí)行的命令中 php7 的安裝目錄為 /usr/local/php7/,如果你安裝在其他目錄,需要相應(yīng)修改 pecl 與 php 命令的路徑。


Mongodb 使用

PHP7 連接 MongoDB 語(yǔ)法如下:

$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");

插入數(shù)據(jù)

將 name 為"W3Cschool教程" 的數(shù)據(jù)插入到 test 數(shù)據(jù)庫(kù)的 w3cschool 集合中。

<?php
$bulk = new MongoDB\Driver\BulkWrite;
$document = ['_id' => new MongoDB\BSON\ObjectID, 'name' => 'W3Cschool教程'];

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

var_dump($_id);

$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");  
$writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite('test.w3cschool', $bulk, $writeConcern);
?>

讀取數(shù)據(jù)

這里我們將三個(gè)網(wǎng)址數(shù)據(jù)插入到 test 數(shù)據(jù)庫(kù)的 sites 集合,并讀取迭代出來(lái):

<?php
$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");  

// 插入數(shù)據(jù)
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['x' => 1, 'name'=>'W3Cschool教程', 'url' => 'http://m.hgci.cn']);
$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],
];

// 查詢數(shù)據(jù)
$query = new MongoDB\Driver\Query($filter, $options);
$cursor = $manager->executeQuery('test.sites', $query);

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

輸出結(jié)果為:

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

更新數(shù)據(jù)

接下來(lái)我們將更新 test 數(shù)據(jù)庫(kù) sites 集合中 x 為 2 的數(shù)據(jù):

<?php
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->update(
    ['x' => 2],
    ['$set' => ['name' => 'w3cschool在線工具', 'url' => '123.w3cschool.cn/webtools']],
    ['multi' => false, 'upsert' => false]
);

$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");  
$writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite('test.sites', $bulk, $writeConcern);
?>

接下來(lái)我們使用 "db.sites.find()" 命令查看數(shù)據(jù)的變化,x 為 2 的數(shù)據(jù)已經(jīng)變成了w3cschool在線工具:


刪除數(shù)據(jù)

以下實(shí)例刪除了 x 為 1 和 x 為 2的數(shù)據(jù),注意 limit 參數(shù)的區(qū)別:

<?php
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->delete(['x' => 1], ['limit' => 1]);   // limit 為 1 時(shí),刪除第一條匹配數(shù)據(jù)
$bulk->delete(['x' => 2], ['limit' => 0]);   // limit 為 0 時(shí),刪除所有匹配數(shù)據(jù)

$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");  
$writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite('test.sites', $bulk, $writeConcern);
?>

更多使用方法請(qǐng)參考:http://php.net/manual/en/book.mongodb.php


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