PHP中的对象排序 [英] Sort Object in PHP

问题描述

在 PHP 中排序对象的优雅方式是什么?我很想完成类似的事情.

What is an elegant way to sort objects in PHP? I would love to accomplish something similar to this.

$sortedObjectArary = sort($unsortedObjectArray, $Object->weight);

基本上指定我要排序的数组以及我要排序的字段.我研究了多维数组排序，那里可能有一些有用的东西，但我没有看到任何优雅或明显的东西.

Basically specify the array I want to sort as well as the field I want to sort on. I looked into multidimensional array sorting and there might be something useful there, but I don't see anything elegant or obvious.

推荐答案

几乎一字不差地来自手册:

Almost verbatim from the manual:

function compare_weights($a, $b) { 
    if($a->weight == $b->weight) {
        return 0;
    } 
    return ($a->weight < $b->weight) ? -1 : 1;
} 

usort($unsortedObjectArray, 'compare_weights');

如果您希望对象能够自行排序，请参见此处的示例 3:http://php.net/usort

If you want objects to be able to sort themselves, see example 3 here: http://php.net/usort

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