php多条件外加查询

程序员文章站 2022-06-09 09:48:26

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php多条件叠加查询


header("Content-Type:text/html;charset=utf-8");
include("../manage/include/function.php");
	$brand=substr($_POST["brand"],0,strlen($_POST["brand"])-1); 
	$color=substr($_POST["color"],0,strlen($_POST["color"])-1); 
	$caizhi=$_POST["caizhi"];
	$style=$_POST["style"];
	$kucun=$_POST["kucun"];
	echo($brand."");
	echo($color."");
	echo($caizhi."");
	echo($style."");
	echo($kucun);

	$q="select * from pros_pro where (1=1)";
	if($brand!=null){
		$q=$q+"and psp_brand in(".$brand.")";
	}
	if($color!=null){
		$q=$q+"and psp_color in(".$color.")";
	}
	if($caizhi!=null){
		$q=$q+"and psp_caizhi='".$caizhi."'";
	}
	if($style!=null){
		$q=$q+"and psp_style='".$style."'";
	}
	if($kucun!=null){
		$q=$q+"order by psp_stock desc";
	}else
	{
		$q=$q+"order by psp_id desc";
	}


	$rows=query($q);
	if($row=mysql_fetch_array($rows))
	{
		do{
?>

    }while($row=mysql_fetch_array($rows));
	}
	else
	{?>
没有符合条件的信息，请重新定义搜索条件!


	}
	?>

这个代码有神马问题？为什么会报错：Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in /data/home/hmu069081/htdocs/products/get_post.php on line 37
且没有符合条件的信息，可是我选的条件明明是有记录的