PHP array_multisort() 函数怎么保持数字键不被重新索引
怪我咯
怪我咯 2017-04-10 15:12:42
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$arr = array( '100'=>array('age'=>22,'name'=>'jack','date'=>'2014'), '110'=>array('age'=>23,'name'=>'mary','date'=>'2012'), '120'=>array('age'=>24,'name'=>'lilei','date'=>'2015') ); array_multisort对数组按age倒序后date倒序,然后120被重新索引为0,怎么保持呢?目前是用$arr_another = $arr保留原数组 //感谢公子 uasort($arr, function($a, $b) { if( $a['age'] === $b['age'] ){ return $a['date'] - $b['date']; } return $a['age'] - $b['age']; }); print_r($arr);
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