php从数据库中选取ID在数组中存在的记录，并按数组中的顺序排列？该如何处理

php从数据库中选取ID在数组中存在的记录，并按数组中的顺序排列？
比如$arr={"5","7",1"","10","3","8"},要从数据库中选取ID值为5，7，1，10，3，8的记录，并且按这个顺序排列。

------解决方案--------------------

SQL code

SELECT * FROM table WHERE id IN(5,7,1,10,3,8) ORDER BY FIND_IN_SET(id,'5,7,1,10,3,8');<br><font color="#e78608">------解决方案--------------------</font><br>//我的测试结果显示PHP排序速度优于MySQL排序速度,刷新了NN次只有1次是PHP慢过MySQL的,请大家也测试一下吧<br><br><?php <br>//date_default_timezone_set('Asia/Shanghai');? <br>$link = mysql_connect('localhost','root');<br>mysql_select_db('test');<br><br>$timeS1 = microtime();<br>$sql = "SELECT * FROM `lean` WHERE id IN(5,7,1,10,3,8) ORDER BY FIND_IN_SET(id,'5,7,1,10,3,8')";<br>//for($i = 1, $i 	$result = mysql_query($sql);<br>	while($row = mysql_fetch_array($result))<br>	{<br>		<br>	}<br>//}<br>$timeE1 = microtime();<br>echo '由数据库自行处理的起止时差为: '.($timeE1 - $timeS1).'<br>';<br><br>//释放译一下php的内存先,免得因为前面的变量影响了效率<br>unset($timeS1);<br>unset($timeS2);<br>unset($link);   //已经自动设定了活动数据库了,当前调试不用传递这个,所以把它也释放了吧<br>unset($sql);<br>unset($result);<br>unset($row);<br><br><br><br>//////////////////////<br>$timeS2 = microtime();<br>$sql = "SELECT * FROM `lean` WHERE id IN(5,7,1,10,3,8)";<br>$result = mysql_query($sql);<br>$data = array();<br>$i = 0;<br>while($row = mysql_fetch_array($result))<br>{<br>	$data[$row['id']] = $row;<br>	$i++;<br>}<br><br>$r = sortdata($data, array(5,7,1,10,3,8));<br><br>$timeE2 = microtime();<br>echo '由PHP处理的起止时差为: '.($timeE2 - $timeS2);<br><br>echo '<pre class="brush:php;toolbar:false">排序结果<br>';<br>print_r($r);<br>echo '

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';

//排序函数
function sortdata($arr,$order){
$r = array();
$i = 0;
foreach($arr as $key => $value){
$r[$order[$i]] = $value;
$i++;
}
return $r;
}