[英]Sort Multidimensional Array Alphabetically not Working?
So I have an array called $links 所以我有一个名为$ links的数组
array(
[0] = array(
'type' => 'thread'
'url' => 'blah blah blah'
),
[1] = array(
'type' => 'media'
'url' => 'blah blah blah'
),
[2] = array(
'type' => 'website'
'url' => 'blah blah blah'
)
);
What I am trying to do is sort this array alphabetically using "type". 我想做的是使用“类型”按字母顺序对数组进行排序。 For this I am using usort()
为此,我正在使用usort()
usort($links, create_function('$b, $a', 'return $a["type"] - $b["type"];'));
The problem is, this is not actually sorting the array... all it does is REVERSE the array. 问题是,这实际上不是对数组进行排序。它所做的只是反转数组。 After running through, I get Website > Media > Thread. 运行完后,我得到网站>媒体>线程。 If I process it a second time, it reverses back to Thread > Media > Website. 如果我第二次处理它,它会返回到“线程”>“媒体”>“网站”。
The final result should be Media > Thread > Website. 最终结果应该是“媒体”>“线程”>“网站”。 Am I missing something? 我想念什么吗? Why is this not sorting correctly? 为什么不能正确排序?
试试这个,代替:
usort($links, create_function('$a, $b', 'return strcmp($a["type"], $b["type"]);'));
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