php怎么获取二维数组指定的某个字段的值?
需求:有如下数组$arr,数组中有两个模块一个net 一个login,我怎么根据net模块获取最后一个marks,
其中net模块和login模块的数据还是一条一条正往$arr里插,net模块亦可能是 find add up del chark 或者更多字段,
就是不管他插多少,我上来一下能找到最后一个marks,如现在你找到del 下的最后一个marks ,前提是我不知道del是组后一个,我要是知道的话,我搞个索引就好了,还有个foreach ,不要遍历,遍历速度不快,谁能给个速度快点?
$arr = array("net" => array( "find" => array("marks"=>"1234","name"=>"lisi"), "add" => array("marks"=>"12","name"=>"lisi2"), "up" => array("marks"=>"15","name"=>"lisi3"), "del" => array("marks"=>"9","name"=>"lisi4") ), "login" => array( "find" => array("marks"=>"16661","name"=>"lisi5"), "add" => array("marks"=>"18881","name"=>"lisi6") ) );
回复讨论(解决方案)
$v = end($arr['net']);$k = key($arr['net']);echo $k;print_r($v);
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