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  • PHP 根据对象属性进行对象数组的排序(usort($your_data, "cmp");)(inside the class: usort($your_data, array($this, "cmp")))

    PHP 根据对象属性进行对象数组的排序(usort($your_data, "cmp");)(inside the class: usort($your_data, array($this, "cmp"))

    一、总结

    1、 usort($your_data, "cmp");

    2、usort($your_data, array($this, "cmp")) If you’re sorting the array from inside the class and your sorting function cmp is also defined inside the class, then use this:

    二、PHP 根据对象属性进行对象数组的排序

    根据对象属性进行对象数组的排序【转自 stackoverflow 】
    Sort array of objects by object fields

    Question
    How can I sort this array of objects by one of its fields, like name or count ?

      Array
    (
        [0] => stdClass Object
            (
                [ID] => 1
                [name] => Mary Jane
                [count] => 420
            )
    
        [1] => stdClass Object
            (
                [ID] => 2
                [name] => Johnny
                [count] => 234
            )
    
        [2] => stdClass Object
            (
                [ID] => 3
                [name] => Kathy
                [count] => 4354
            )
    
       ....

    Answer :
    Use usort, here’s an example adapted from the manual:

    function cmp($a, $b)
    {
        return strcmp($a->name, $b->name);
    }
    
    usort($your_data, "cmp");

    edits imported from comments:

    If you’re sorting the array from inside the class and your sorting function cmp is also defined inside the class, then use this:

    usort($your_data, array($this, "cmp"))

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  • 原文地址:https://www.cnblogs.com/Renyi-Fan/p/9095767.html
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