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代码工作正常,但我仍然想在页面刷新时生成随机结果。现在代码给了我结果,例如链接 n.1,2,3,4,5... 我不希望它们是随机的,例如没有。3,9,1,...

这是代码:

<?php


function print_cloud()
{ global $use_ads_scrl; $res=""; if ($use_ads_scrl=="yes"){$res=print_cloud2();}  return $res; }

function print_cloud2()
{

global $table_ads, $HTTP_GET_VARS;

$city_sch="";
if ($HTTP_GET_VARS['city']!=""){$city_sch="and city='".$HTTP_GET_VARS['city']."' ";}

$sql_query="select * from $table_ads where (adcommkey is null or adcommkey=0) and visible=1 $city_sch
order by idnum desc limit 10";

$sql_res=mysql_query("$sql_query");

$min = '8'; // Minimum font size in pixel.
$max = '22'; // Maximum font size in pixel.
$decor = 'text-decoration:none;font-weight:100;'; // Inline CSS per link.

$k1=""; $html_res="";
while ($row = mysql_fetch_array($sql_res)){
$k1="1";
if($row['adphotos']=='yes'){$check_ph=$photo_mark;} else {$check_ph="";}

$html_res=$html_res."
<a style=' ".$decor." font-size:".rand($min,$max)."px; font-family:tahoma,sans-serif; color:#3B5998;'    href='index.php?md=details&id= ".$row['idnum']." '> ".$row['title']." </a> 
";


}

$html_res="
$html_res
";

if ($k1==""){$html_res="";}

return $html_res;
}

?>
4

1 回答 1

0

改变

order by idnum desc limit 10

order by RAND() limit 10

这将从您的表中返回 10 个随机结果。

编辑:要从最近的 X 条目返回随机结果,您可以尝试使用子查询返回最近的 10 个结果,然后随机排序该查询的结果。

SELECT *
FROM (SELECT * FROM $table_ads
      WHERE (adcommkey is null or adcommkey=0)
      AND visible=1
      ORDER BY idnum DESC LIMIT 10) `recent`
ORDER BY RAND()
于 2011-12-15T17:22:16.283 回答