Php foreach代码不适用于筛选API

按城市和酒店搜索我的数据库中的城市和酒店。我的代码没有工作。你能查一下我的密码吗。也许代码中有错误

$countryName =  $_GET['countrycode'];
$url        =  'https://api.sandbox.amadeus.com/v1.2/hotels/search-box?apikey=EbdwHszYlp0f7fQB6YHo40SIhu4ZAomm&south_west_corner=51.328476%2C%20-10.758522&north_east_corner=55.320949%2C%20-5.474099&check_in=2017-06-19&check_out=2017-06-29&number_of_results=1000';
$response  = file_get_contents($url);
$apiResults = json_decode($response, true);
$apiResults = $apiResults["results"];

$finalArray = [];
$dbResults   = $wpdb->get_results(
    $wpdb->prepare("
        SELECT * 
          FROM hotels
         WHERE county = %s",
        $countryName
    ),
    ARRAY_A 
);


# If atleast 1 row is fecthed from
# database
if ($dbResults->num_rows) {
    foreach ($dbResults as $dbResult) {
        echo $storedCountryName = $dbResult["county"];
        echo $storedHotelName   = $dbResult["hotel"];
        foreach ($apiResults as $apiResult) {
            if ($storedCountryName  === $apiResult['address']['city']
                && $storedHotelName === $apiResult['property_name']) 
            {
                $finalArray[] = $apiResult;


            }

        }

    }
}
var_dump($finalArray);

var_dump（$finalArray）；结果：

array (size=0)
  empty

---

试试这个，让我知道

我将这一行

if（$dbResults->num_rows）{

替换为

if（$wpdb->num_rows>0）{

它应该会起作用

    $countryName =  $_GET['countrycode'];
$url        =  'https://api.sandbox.amadeus.com/v1.2/hotels/search-box?apikey=EbdwHszYlp0f7fQB6YHo40SIhu4ZAomm&south_west_corner=51.328476%2C%20-10.758522&north_east_corner=55.320949%2C%20-5.474099&check_in=2017-06-19&check_out=2017-06-29&number_of_results=1000';
$response  = file_get_contents($url);
$apiResults = json_decode($response, true);
$apiResults = $apiResults["results"];

$finalArray = [];

$dbResults   = $wpdb->get_results(
    $wpdb->prepare("
        SELECT * 
          FROM hotels
         WHERE county = %s",
        $countryName
    ),
    ARRAY_A 
);


# If atleast 1 row is fecthed from
# database
if ($wpdb->num_rows>0) {
    foreach ($dbResults as $dbResult) {
        echo $storedCountryName = $dbResult["county"];
        echo $storedHotelName   = $dbResult["hotel"];
        foreach ($apiResults as $apiResult) {
            $ResultArray= array();
            if ($storedCountryName  == $apiResult['address']['city']
                && $storedHotelName == $apiResult['property_name']) 
            {
                $ResultArray = $apiResult;
                $finalArray[] = $ResultArray;

            }

        }

    }
}
var_dump($finalArray);

---

试试这个，让我知道

我将这一行

if（$dbResults->num_rows）{

替换为

if（$wpdb->num_rows>0）{

它应该会起作用

    $countryName =  $_GET['countrycode'];
$url        =  'https://api.sandbox.amadeus.com/v1.2/hotels/search-box?apikey=EbdwHszYlp0f7fQB6YHo40SIhu4ZAomm&south_west_corner=51.328476%2C%20-10.758522&north_east_corner=55.320949%2C%20-5.474099&check_in=2017-06-19&check_out=2017-06-29&number_of_results=1000';
$response  = file_get_contents($url);
$apiResults = json_decode($response, true);
$apiResults = $apiResults["results"];

$finalArray = [];

$dbResults   = $wpdb->get_results(
    $wpdb->prepare("
        SELECT * 
          FROM hotels
         WHERE county = %s",
        $countryName
    ),
    ARRAY_A 
);


# If atleast 1 row is fecthed from
# database
if ($wpdb->num_rows>0) {
    foreach ($dbResults as $dbResult) {
        echo $storedCountryName = $dbResult["county"];
        echo $storedHotelName   = $dbResult["hotel"];
        foreach ($apiResults as $apiResult) {
            $ResultArray= array();
            if ($storedCountryName  == $apiResult['address']['city']
                && $storedHotelName == $apiResult['property_name']) 
            {
                $ResultArray = $apiResult;
                $finalArray[] = $ResultArray;

            }

        }

    }
}
var_dump($finalArray);

试一试

=

表示您也在检查数据类型。可能您的数据库字段数据类型和json响应字符串数据类型不匹配。因此从条件中删除一个=并仅比较值。

尝试

---

=

表示您也在检查数据类型。可能您的数据库字段数据类型和json响应字符串数据类型不匹配。因此从条件中删除一个=并仅比较值。

从county=%s的酒店选择*的结果是什么？Hi@vel，它的长代码你能从这里下载从county=%s的酒店选择*的结果吗？嗨@vel，它的长代码。你能从这里下载吗？我用

如果（$dbResults->num_rows）{

替换这一行

如果（$wpdb->num_rows>0）{

它工作了，但只显示一个酒店信息！在api url中，两个酒店与我的匹配database@rayan005，回答已更新。立即检查。仍然相同的概率回答已再次更新。您必须检查if条件。打印这些值并检查

$storedCountryName

&&

$storedHotelName

。如果（$dbResults->num_rows）{with

if（$wpdb->num_rows>0）{

它工作了，但只显示一个酒店信息！在api url中，两个酒店与我的匹配database@rayan005，答案更新。现在检查。仍然相同的概率答案再次更新。您必须检查if条件。打印这些值并检查

$storedCountryName

&&

$storedHotelName

。我可以知道为什么得到-1吗？我不认为我的答案不正确。@downvoter愿意留下解释：）我可以知道为什么我得到-1吗？我不认为我的答案不正确。@downvoter愿意留下解释：）