php mongodb从mongodb数组字段中删除项

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

// 选择数据库和集合
$database = "mydb";
$collection = "mycollection";

// 构建查询条件
$filter = ['_id' => new MongoDB\BSON\ObjectID('5f3e2a4b7d9a7c1e9c000000')];

// 构建更新操作
$update = ['$pull' => ['myArrayField' => 'itemToRemove']];

// 构建更新选项
$options = ['multi' => false];

// 构建更新命令
$command = new MongoDB\Driver\Command([
    'update' => $collection,
    'updates' => [
        [
            'q' => $filter,
            'u' => $update,
            'upsert' => false,
            'multi' => false
        ]
    ]
]);

// 执行更新命令
$result = $manager->executeCommand($database, $command);

// 检查更新结果
if ($result->getModifiedCount() > 0) {
    echo "成功从MongoDB数组字段中删除项。";
} else {
    echo "未找到匹配的项，无需删除。";
}
?>