怎么才能列出字段所有的值呢
haop字段:好评等于1,中评等于2,差评等于3
select * from pingjia where uid='$uid' and haop='$haop' order by id desc limit";
现在是
?uid=5&haop=1 可以列出等于1的好评,现在想显示全部的怎么搞啊
$radio=intval($_GET['haop']);
if($radio===0){
$pingx="比如提交value=’0‘的时候怎么显示全部呢";
}
else
{
$pings="&haop=$radio";
}
回复讨论(解决方案)
你把sql改成select * from pingjia where uid='$uid' order by id desc;就好啦
把 and haop='$haop' 去掉就可以了。
可是去掉and haop='$haop'就不能查询到这个值了
例如这样的,去掉就不生效了...
?uid=5&haop=1
用了个笨办法
if($radio===0){
select * from pingjia where uid='$uid' and haop='$haop' order by id desc limit";
}
else
{
select * from pingjia where uid='$uid' order by id desc limit";
}
虽然能行了,但好像太不科学了,哎!~
一般这种条件查询语句是这样写的
$sql = "select xx from yy where 1=1"; if(条件1){$sql .= " and a=.. ";} if(条件2){$sql .= " and b=.. ";}然后后面跟上分页和order
你去掉了and haop='$haop',后边url地址后边就不要跟&haop=1了。

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