MongoDB remove()方法在PHP中未定义 [英] MongoDB remove() method is undefined with PHP

问题描述

我正在使用PHP7 + mongoDB.与作曲家一起安装的PHP驱动程序.

I'm using PHP7 + mongoDB. PHP driver installed with composer.

我有以下代码:

<?php
require 'vendor/autoload.php';

$m= new MongoDB\Client("mongodb://127.0.0.1/");

$db = $m->test_database;

$collection = $db->test_table;

$document = array( "first_name" => "Dude", "last_name" => "Dudly" ); 

$collection->insertOne($document);

$cursor = $collection->find();

foreach ($cursor as $document) {
    echo $document["first_name"] . "\n";
}

$collection->remove();
?>

这将按预期打印出" Dude ". 但也有以下例外情况:

This prints out "Dude" as expected. But also the following exception:

在...中调用未定义的方法MongoDB \ Collection :: remove()...

并且不会删除集合中插入的数据.

And the inserted data in the collection is not removed.

你知道这是怎么回事吗?

Any idea what's wrong here?

谢谢！

推荐答案

从

From the docs, remove operation takes query filter for removing documents from collection.

$collection->remove($document, array("justOne" => true));// With filter to remove single entry
$collection->remove(array());//Empty filter will remove all the entries from collection.

您可以使用最新的php驱动程序 http://php.net/manual/zh/set.mongodb.php

Btw you can use newest driver for php http://php.net/manual/en/set.mongodb.php

1 :更新:没有意识到OP正在使用针对MongoDB的composer.

Update: Didn't realize OP was using composer for MongoDB.

您必须使用 deleteOne 和带有最新驱动程序的 deleteMany 变体.

You've to use deleteOne and deleteMany variant with latest driver.

$deleteResult = $collection->deleteOne(["first_name" => "Dude"]);

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