我在网站中有一个搜索表单,希望有几个由用户输入的搜索词来执行数据库搜索,词如下:
- Keywords
- 物业出售(出售、出租...)
- 房产类型(公寓、排屋......)
- State
- 最低价格
- 最高价格
这是使用上述术语的输入执行搜索的脚本
public function get_property_list_by_search($start, $per_page, $keyword, $prop_for, $min, $state, $ptype, $max, $mysqli)
{
if(empty($start) && empty($per_page))
{
return 0;
}
$start = preg_replace('/[^0-9]/', '', $mysqli->real_escape_string($start));
$per_page = preg_replace('/[^0-9]/', '', $mysqli->real_escape_string($per_page));
$keyword = $mysqli->real_escape_string(stripslashes($keyword));
$prop_for = $mysqli->real_escape_string(stripslashes($prop_for));
$state = $mysqli->real_escape_string(stripslashes($state));
$ptype = $mysqli->real_escape_string(stripslashes($ptype));
$min_price = self::num_clean($mysqli->real_escape_string($min));
$max_price = self::num_clean($mysqli->real_escape_string($max));
$t1 = '';
$t2 = '';
$t3 = '';
$t4 = '';
$t5 = '';
if(isset($keyword) && !empty($keyword)){
$t1 = " AND `proj_title` LIKE '%".$keyword."%' OR `proj_addr` LIKE '%".$keyword."%' OR `proj_area` LIKE '%".$keyword."%'";
}
if(isset($prop_for) && !empty($prop_for)){
$t2 = " AND `proj_for`='".$prop_for."'";
}
if(isset($state) && !empty($state)){
$t3 = " AND `state`='".$state."'";
}
if(isset($ptype) && !empty($ptype)){
$t4 = " AND `proj_cat`='".$ptype."'";
}
//min & max
if((isset($min_price) && !empty($min_price)) && (isset($max_price) && !empty($max_price))){
$t5 = " AND `price` BETWEEN '".$min_price."' AND '".$max_price."'";
}
//min only
if(!empty($min_price) && empty($max_price)){
$t5 = " AND `price` >= '".$min_price."'";
}
//max only
if(empty($min_price) && !empty($max_price)){
$t5 = " AND `price` <= '".$max_price."'";
}
$sql = $mysqli->query("SELECT * FROM `project` WHERE `status`='1' ".
$t1." ".$t2." ".$t3." ".$t4." ".$t5." ".
"ORDER BY `posted_date` DESC LIMIT ".$start.", ".$per_page);
if($sql->num_rows > 0){
return $sql;
}else{
return false;
}
}
查询输出将类似于:
SELECT * FROM `project`
WHERE `proj_title` LIKE '%keywords%'
OR `proj_addr` LIKE '%keywords%'
OR `proj_area` LIKE '%keywords%'
AND `proj_for`='Sale' AND `state`='Somewhere' AND `proj_cat`='8' AND `price` BETWEEN '250000' AND '600000'
(数据类型为price
is DECIMAL(10,2)
,它存储的值就像250000.00
)
然而,返回的结果并不像预期的那样(不准确),它还会得出价格超过 600000 且项目类别超出“8”的结果,这不适合最终用户在网站中搜索。
有什么方法可以细化查询以执行更具体的操作吗?