PHP删除传值有关问题

PHP删除传值问题
现在我准备传ID用来判断删除哪条数据

PHP code

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--><a href="delect_sj.php?hid=%7B%24row%5Bh_id%5D%7D">删除</a>

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PHP code

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-->mysql_select_db($db_name,$connection)or die("选择数据库失败");
$query="delect from hotel_activities_2 where " ;//主要是这怎么写
if (mysql_query($query)){
    echo "删除数据成功";
}else{
echo "删除失败";    
}
mysql_close($connection);

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