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查找数组某个指定键值,必须用遍历吗?该如何解决

WBOY
WBOYOriginal
2016-06-13 09:58:371174browse

查找数组某个指定键值,必须用遍历吗?
数组格式如下:

PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Array(    [0] => Array        (            [0] => ID            [1] => Nickname        )    [1] => Array        (            [0] => 29            [1] => Test1        )    [2] => Array        (            [0] => 654            [1] => Xxx1        ))

比如要找到ID=29的这条记录,我现在是使用foreach遍历数组
PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->foreach($array as $value){    if($value[0]==29)    {        //判断条件成立,进行相关操作        }}

请问还有没有更高效的方法?

可能有人说用in_array函数,但是假如记录中除了id为29的外,nickname这个键值也有可能会出现29的情况,用这个函数查询就会有问题。

------解决方案--------------------
$array[1]高效了
in_array不行那用array_keys($array, 29)或者array_search(29,$array)
------解决方案--------------------
PHP code
$array = array(0 => array('id', 'name'), array('29', 'test'), array('65', '29'));array_walk($array, $theValue = 'checkvalue', 29);if ($theValue == true) {    echo 'ok';}function checkvalue($value, $key, $number){    if ($value[0] == $number) {        //something        return true;    }}<div class="clear">
                 
              
              
        
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