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请教怎么用键名分组

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2016-06-13 12:32:25804browse

请问如何用键名分组?

$arr1 = array (<br />
'0' => array ('fid' => 1, 'tid' => 1 , 'name' =>'Name2' ),<br />
'2' => array ('fid' => 1, 'tid' => 1,  'name' =>'Name1' ),<br />
'1' => array ('fid' => 1, 'tid' => 5 , 'name' =>'Name3' ),<br />
'3' => array ('fid' => 1, 'tid' => 7 , 'name' =>'Name4' ),<br />
'4' => array ('sid' => 2, 'tid' => 9,  'name' =>'Name5' ),<br />
'5' => array ('cid' => 2, 'tid' => 9,  'name' =>'Name5' )<br />
);


请问有什么最快的方法可以以键名fid,sid,cid分组。

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