为什么这种mongo排序在PHP中不起作用? [英] Why is this mongo sort not working in PHP?

问题描述

我正在按照PHP文档中的示例对集合中的某些记录进行排序:

I'm following an example from the PHP docs to sort some records in a collection:

    $cursor = $mongo->party_scores->find()->limit(10);
    $cursor = $cursor->sort(array("score",-1));
    foreach($cursor as $doc) {
        print_r($doc);
    }

这样做，我看到文档的顺序是随机的(未排序).

Doing this, I see the documents in a random order (not sorted).

但是从mongo控制台执行此查询会产生正确排序的响应:

But executing this query from the mongo console produces a correctly sorted response:

db.party_scores.find().sort({score : -1 })

我觉得肯定有一些我想念的东西.

I feel like there must be something obvious I'm missing.

推荐答案

我认为我看到了问题.而不是这样做:

I think I see the problem. Instead of doing this:

$cursor->sort(array("score",-1))

尝试一下:

$cursor->sort(array("score" => -1))

容易犯错，但是很沮丧地发现您是否马上就看不到它.

Easy mistake to make, but very frustrating to find if you don't see it right away.

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