Php 在表单提交时将值放入数组

目前我得到的值是这样的

$property_buildingorlocation = ($_GET['buildingorlocation']);

有时用户会输入

buildingname、areaname、cityname（数组大小为3）

arename、cityname（数组大小为2）

cityname（数组大小为1）

因此将有2个逗号，1个逗号或没有逗号

我想将数据放入数组，根据输入的数量或逗号（上面提到的大小）动态设置数组的大小

接下来，如果数组大小是3，那么我想用and运算符搜索三个mysql列（可选）

如果数组大小是2，那么我想用and运算符搜索两个mysql列（可选）

如果数组大小为1，则在1 mysql列中搜索

我知道我在用一个如此开放的问题来推动它，但我需要帮助。。。从早上开始我就一直在做这件事，我想不出来了……

把数据放到数组中

$searchparams=explode(',',$property_buildingorlocation);
$searchparams=('trim',$searchparams);

计算元素的数量

$searchparamscount=count($searchparams);

你的逻辑使用

---

最后使用了下面的逻辑。。。它正在工作

if (!empty($property_buildingorlocation)) {

    $searchparams = array_map('trim', explode(',', $property_buildingorlocation));
    $searchparamscount=count($searchparams);

    // If Property Buildingname, Areaname and City are given
    if ($searchparamscount == 3) {
    $wheres[] = 'property_buildingname LIKE :property_buildingname AND property_areaname LIKE :property_areaname AND property_city LIKE :property_city';
    $params[':property_buildingname'] = $searchparams[0];
    $params[':property_areaname'] = $searchparams[1];

    $select7 = $con->prepare("SELECT city_id, city_name from tbl_city WHERE city_name LIKE (:property_city)");
    $select7->setFetchMode(PDO::FETCH_ASSOC);
    $select7->bindParam(':property_city', $searchparams[2], PDO::PARAM_STR);
    $select7->execute();
        while($data7=$select7->fetch()){ 
        $searchparams[2] = $data7['city_id'];
        }
    $params[':property_city'] = $searchparams[2];

    // If Property Areaname and City are given
    } else if ($searchparamscount == 2) {
    $wheres[] = 'property_areaname LIKE :property_areaname AND property_city LIKE :property_city';
    $params[':property_areaname'] = $searchparams[0];

    $select7 = $con->prepare("SELECT city_id, city_name from tbl_city WHERE city_name LIKE (:property_city)");
    $select7->setFetchMode(PDO::FETCH_ASSOC);
    $select7->bindParam(':property_city', $searchparams[1], PDO::PARAM_STR);
    $select7->execute();
        while($data7=$select7->fetch()){ 
        $searchparams[1] = $data7['city_id'];
        }   
    $params[':property_city'] = $searchparams[1];   
    } 

    // If Property City is given
    else if ($searchparamscount == 1) {
    $wheres[] = 'property_city LIKE :property_city';

    $select7 = $con->prepare("SELECT city_id, city_name from tbl_city WHERE city_name LIKE (:property_city)");
    $select7->setFetchMode(PDO::FETCH_ASSOC);
    $select7->bindParam(':property_city', $searchparams[0], PDO::PARAM_STR);
    $select7->execute();
        while($data7=$select7->fetch()){ 
        $searchparams[0] = $data7['city_id'];
        }   
    $params[':property_city'] = $searchparams[0];
    }           
}

---

谢谢@Alexey。。。最终使用了非常有用的逻辑您总是使用$searchparams[0]，您确定这样做有效吗？可能是$searchparams[0]、$searchparams[1]和$searchparams[2]？是的，我修复了它，谢谢你指出。。它出现在testingcode中，现在变得越来越复杂，但我已经发布了正确的答案

if (!empty($property_buildingorlocation)) {

    $searchparams = array_map('trim', explode(',', $property_buildingorlocation));
    $searchparamscount=count($searchparams);

    // If Property Buildingname, Areaname and City are given
    if ($searchparamscount == 3) {
    $wheres[] = 'property_buildingname LIKE :property_buildingname AND property_areaname LIKE :property_areaname AND property_city LIKE :property_city';
    $params[':property_buildingname'] = $searchparams[0];
    $params[':property_areaname'] = $searchparams[1];

    $select7 = $con->prepare("SELECT city_id, city_name from tbl_city WHERE city_name LIKE (:property_city)");
    $select7->setFetchMode(PDO::FETCH_ASSOC);
    $select7->bindParam(':property_city', $searchparams[2], PDO::PARAM_STR);
    $select7->execute();
        while($data7=$select7->fetch()){ 
        $searchparams[2] = $data7['city_id'];
        }
    $params[':property_city'] = $searchparams[2];

    // If Property Areaname and City are given
    } else if ($searchparamscount == 2) {
    $wheres[] = 'property_areaname LIKE :property_areaname AND property_city LIKE :property_city';
    $params[':property_areaname'] = $searchparams[0];

    $select7 = $con->prepare("SELECT city_id, city_name from tbl_city WHERE city_name LIKE (:property_city)");
    $select7->setFetchMode(PDO::FETCH_ASSOC);
    $select7->bindParam(':property_city', $searchparams[1], PDO::PARAM_STR);
    $select7->execute();
        while($data7=$select7->fetch()){ 
        $searchparams[1] = $data7['city_id'];
        }   
    $params[':property_city'] = $searchparams[1];   
    } 

    // If Property City is given
    else if ($searchparamscount == 1) {
    $wheres[] = 'property_city LIKE :property_city';

    $select7 = $con->prepare("SELECT city_id, city_name from tbl_city WHERE city_name LIKE (:property_city)");
    $select7->setFetchMode(PDO::FETCH_ASSOC);
    $select7->bindParam(':property_city', $searchparams[0], PDO::PARAM_STR);
    $select7->execute();
        while($data7=$select7->fetch()){ 
        $searchparams[0] = $data7['city_id'];
        }   
    $params[':property_city'] = $searchparams[0];
    }           
}