运行后确保MySQL进程关闭

Question

我有一个在PHP和MySQL中运行的站点，最近它已经开始没有响应而没有加载页面。我的Web主机因为开放流程而说出来了：

Id  User    Host    db  Command Time    State   Info
28312497    eximstats   localhost   eximstats   Sleep   0    NULL   
42808356    integra_integra 82.152.148.162:63299    integra_integra Sleep   3177     NULL
42808809    integra_integra 82.152.148.162:63302    integra_integra Sleep   3057     NULL
42813450    integra_integra 82.152.148.162:63308    integra_integra Sleep   2714     NULL
42824809    integra_integra 82.152.148.162:63313    integra_integra Sleep   2605     NULL

如何确保流程不会保持开放？

我的查询如下：

$sql="SELECT * From table where... ";
$rs=mysql_query($sql,$conn);

然后：

$result=mysql_fetch_array($rs);

或

while($result=mysql_fetch_array($rs))
{
echo data here...
}