我现在的代码是从SQL中获取移动应用程序中的数据,首先添加显示,我需要将其设置为显示最后添加为我的Android应用程序中的第一个。我有api代码如下,最近根据我的要求显示,但对于cid和援助我需要最新的(必须显示最近作为第一)。我的代码如下 感谢
<?php include("includes/connection.php");
error_reporting(0);
mysql_query("SET NAMES 'utf8'");
if(isset($_GET['cid']))
{
if(isset($_GET['cat_id']))
{
$cat_id=$_GET['cat_id'];
$query="SELECT * FROM tbl_quotes
LEFT JOIN tbl_category ON tbl_quotes.cat_id= tbl_category.cid
where tbl_quotes.cat_id='".$cat_id."'";
}
else if(isset($_GET['latest']))
{
$limit=$_GET['latest'];
$query="SELECT * FROM tbl_quotes
LEFT JOIN tbl_category ON tbl_quotes.cat_id= tbl_category.cid
ORDER BY tbl_quotes.id DESC LIMIT $limit";
}
else
{
$query="SELECT cid,category_name,category_image FROM tbl_category";
}
$resouter = mysql_query($query);
$set = array();
$total_records = mysql_num_rows($resouter);
if($total_records >= 1){
while ($link = mysql_fetch_array($resouter, MYSQL_ASSOC)){
$set['Quotes'][] = $link;
}
}
/* output in format */
//echo $val= str_replace('\\/', '/', json_encode($set));
header( 'Content-Type: application/json; charset=utf-8' );
echo str_replace('\\/', '/',json_encode($set,JSON_UNESCAPED_UNICODE));
}
else{
if(isset($_GET['aid']))
{
$author_id=$_GET['aid'];
$qry="SELECT * FROM tbl_quotes
LEFT JOIN tbl_author ON tbl_quotes.aid= tbl_author.author_id
where tbl_quotes.aid='".$author_id."'";
}
else if(isset($_GET['latest']))
{
$limit=$_GET['latest'];
$qry="SELECT * FROM tbl_quotes
LEFT JOIN tbl_author ON tbl_quotes.aid= tbl_author.author_id
LEFT JOIN tbl_category ON tbl_quotes.cat_id= tbl_category.cid
ORDER BY tbl_quotes.id DESC LIMIT $limit";
}
else
{
$qry="SELECT author_id,author_name,author_image FROM tbl_author";
}
$resultouter = mysql_query($qry);
$author_set = array();
$total_records = mysql_num_rows($resultouter);
if($total_records >= 1){
while ($link = mysql_fetch_array($resultouter, MYSQL_ASSOC)){
$author_set['Quotes'][] = $link;
}
}
// echo $value= str_replace('\\/', '/', json_encode($author_set));
/* output in format */
header( 'Content-Type: application/json; charset=utf-8' );
echo str_replace('\\/', '/',json_encode($author_set,JSON_UNESCAPED_UNICODE));
}
?>
答案 0 :(得分:2)
当您使用SELECT
语句查询表中的数据时,结果集不会按任何顺序排序。要对结果集进行排序,请使用ORDER BY
ORDER BY column1 [ASC|DESC]
你的代码中的: -
$query="SELECT * FROM tbl_quotes
LEFT JOIN tbl_category ON tbl_quotes.cat_id= tbl_category.cid
ORDER BY tbl_quotes.id DESC,date DESC LIMIT $limit";
如果您的列数据类型不是date
或datetime
我们cast()
,那么: -
CAST(column_name AS DATETIME);
CAST(column_name AS DATE);
答案 1 :(得分:0)
也可以使用order by作为日期。
ORDER BY tbl_quotes.id DESC, DATE(your_date_column) desc
另请参阅此documentation了解更多信息