我有一个搜索表单(搜索属性,不动产):
HTML: 标签已被忽略
<input type="text" name="keywords" placeholder="keywords"/>
<select name="status" id="select-property-status" class="search-select">
<option value="" selected="selected">Tous</option>
<option value="1">Sale</option>
<option value="0">Rent</option>
</select>
<select name="type" id="select-property-type" class="search-select">
<option value="" selected="selected">Tous</option>
<option value="appartement">Appartement</option>
<option value="duplex">Duplex</option>
<option value="studio">Studio</option>
<option value="villa">Villa</option>
</select>
<select name="emplacement" id="select-property-emplacement" class="search-select">
<option value="" selected="selected">Tous</option>
<option value="La Goulette">La Goulette</option>
<option value="Gammarth">Gammarth</option>
<option value="La Marsa">La Marsa</option>
<option value="El Mourouj">El Mourouj</option>
</select>
<input name="surface_min" type="text" placeholder="min" value="" />
<input name="surface_max" type="text" placeholder="max" value="" />
<input name="rooms_min" type="text" placeholder="min" value="" />
<input name="rooms_max" type="text" placeholder="max" value="" />
<input name="price_min" type="text" placeholder="Prix min" value="" />
<input name="price_max" type="text" placeholder="Prix max" value="" />
<input type="hidden" name="search_form" value="True" required="required"/>
<input type="submit" name="submit" value="Search" class="search-button" />
现在 search-results.php:
// Saving search terms in variables
$keyword = strtolower(htmlspecialchars($_POST['keywords'])); // string from text field
$status = htmlspecialchars($_POST['status']); // 0 or 1
$type = htmlspecialchars($_POST['type']); // string value from option
$emplacement = htmlspecialchars($_POST['emplacement']); // string value from option
$surface_min = htmlspecialchars($_POST['surface_min']); // integer from text field
$surface_max = htmlspecialchars($_POST['surface_max']);// integer from text field
$chambres_min = htmlspecialchars($_POST['rooms_min']);// integer from text field
$chambres_max = htmlspecialchars($_POST['rooms_max']);// integer from text field
$prix_min = htmlspecialchars($_POST['price_min']);// integer from text field
$prix_max = htmlspecialchars($_POST['price_max']);// integer from text field
// create an empty array
$where_array = array();
// if user type in or choose an option in the search form
// > create a string with its value and put it in $where_array
if($keyword != '') $where_array[] = ' LOWER(prop_title) LIKE "%'.$keyword.'%" OR LOWER(prop_desc) LIKE "%'.$keyword.'%"';
if($status != '') $where_array[] = 'prop_status = '.$status.'';
if($type != '') $where_array[] = 'prop_type = "'.$type.'"';
if($emplacement != '') $where_array[] = 'prop_place = "'.$emplacement.'"';
if($surface_min != '') $where_array[] = 'prop_surface >= '.$surface_min.'';
if($surface_max != '') $where_array[] = 'prop_surface <= '.$surface_max.'';
if($rooms_min != '') $where_array[] = 'prop_rooms >= '.$rooms_min.'';
if($rooms_max != '') $where_array[] = 'prop_rooms <= '.$rooms_max.'';
if($price_min != '') $where_array[] = 'prop_price >= '.$price_min.'';
if($price_max != '') $where_array[] = 'prop_price <= '.$price_max.'';
// join all the array elements (the strings) saved in $where_array by the string : AND
$where_string = implode(" AND ", $where_array);
// the sql query
$search = "SELECT * FROM proprietes WHERE $where_string";
$search = $db->query($search);
// if the query exists
if($search)
{
// loop through all the properies that matches the WHERE conditions
foreach($search as $search_result)
{
// echo the title of the property
echo htmlspecialchars($search_result['prop_title']);
}
}
else
{
// which one is right ?
echo 'Error occured !';
echo 'No property found !';
}
问题
单独选择时,所有搜索字段都可以正常工作,所有组合都可以正常工作,除了:
关键字AND状态字段,从proprietes表返回的数据不应该:我在文本字段中输入单词“villa”然后在选择框中选择“For Sale”(sale = 1,rent = 0)但结果给出了我所有的别墅出售和出租!我使用$search->debugDumpParams();
来回应这个:
SELECT * FROM proprietes WHERE LOWER(prop_title) LIKE "%villa%" OR LOWER(prop_desc) LIKE "%villa%" AND prop_status = 1
我认为这是我的逻辑和语法错误!有什么帮助吗?
谢谢。
答案 0 :(得分:1)
这里有很多,但您的输出查询显示了问题。
未正确使用未指定的布尔条件(AND
和OR
)。应该更像这样
SELECT * FROM proprietes
WHERE prop_status = 1
AND (LOWER(prop_title) LIKE "%villa%" OR LOWER(prop_desc) LIKE "%villa%")
您需要更改阵列中的逻辑,使其更像这样。换句话说,在查询中有OR
的任何地方,它都应该括在括号中
答案 1 :(得分:1)
我想如果你把这行代码更改为
if($keyword != '')
$where_array[] = ' (LOWER(prop_title) LIKE "%'.$keyword.'%" OR LOWER(prop_desc) LIKE "%'.$keyword.'%")';
它会纠正您的查询。
如果您使用双引号,那么它也可能更具可读性,那么您不需要所有.
连接,并且代码变得更容易阅读。
if($keyword != '')
$where_array[] = " (LOWER(prop_title) LIKE '%$keyword%' OR LOWER(prop_desc) LIKE '%$keyword%')";