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。
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。
PHP7 連接 MongoDB 語(yǔ)法如下:
$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");
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); ?>
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://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 )
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:
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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