Question

在这里，我想将$part1和$part2值分配给Mysqli查询。但是问题是$part2值没有进入查询。我无法找到我的代码会出现什么问题。

$string = 'Enter a domain name' . "\r\n";
socket_write($client, $string, strlen($string)) or die("Could not write output\n");

$str = '';
while ($input = socket_read($client, 1024)) {
$str .= $input;
if (strpos($str, "\n") !== false) {
    break 1;
}}
$part = explode(".", $str);
$part1 = $part[0];
$part2= $part[1];

$sql =  "SELECT DomainCategory.Name "
    . "FROM DomainName_Client, DomainNameType, DomainCategory, OrderDomain_Client "
    . "WHERE DomainName_Client.Name='$part1' "
    . "AND DomainNameType.Name='$part2' "
    . "AND DomainName_Client.TypeID=DomainNameType.ID "
    . "AND DomainCategory.ID=DomainName_Client.DomainCategoryID "
    . "AND OrderDomain_Client.DomainNameID=DomainName_Client.ID";

      $result = $mysqli->query($sql);
      $row1 = $result->num_rows;

if ($row1 > 0) {

$row = $result->fetch_array(MYSQLI_NUM);
printf("%s\n", $row[0]);
} else {
echo 'This is not a Registered Domain';
}

Answer 1

与PDO联系

    try
     {
      $dbh = new PDO("pgsql:host=$host;port=5432;dbname=$db;user=$user;password=$pass");
      echo "Connected";
    }
    catch (Exception $e)
    {
      echo "Unable to connect: " . $e->getMessage() ."
";
    }

准备你的声明：

        $sth = $dbh->prepare("SELECT DomainCategory.Name "
        . "FROM DomainName_Client, DomainNameType, DomainCategory,                OrderDomain_Client "
        . "WHERE DomainName_Client.Name='?' "
        . "AND DomainNameType.Name='?' "
        . "AND DomainName_Client.TypeID=DomainNameType.ID "
        . "AND DomainCategory.ID=DomainName_Client.DomainCategoryID "
        . "AND OrderDomain_Client.DomainNameID=DomainName_Client.ID");

执行：

`enter code here`
    $sth->execute(array($part1, $part2));
    $red = $sth->fetchAll();

Answer 2

根据Combinu的建议，PDO是更好的方法。但是，为了配合你的想法，我会连接变量的内容。

$scope.retrieveClientName = function(store) { // pass in store so we can attach results here
   $http({
      method: 'GET',
      url: 'http://mywebsite.com/api/v1/clients?client_id='+store.client_id
   }).
   success(function(data, status, headers, config) {
      return store.clients = data; // attach result in object
   }).
   error(function(data, status, headers, config) {
      $scope.name = 'Error!';
   });
}

$http({
    method: 'GET',
    url: 'http://mywebsite.com/api/v1/stores/'
}).
success(function(data, status, headers, config) {
    $scope.stores = data;
    angular.forEach($scope.stores, function(store){
        $scope.retrieveClientName(store); // no need .then here
    });
}).
error(function(data, status, headers, config) {
    $scope.name = 'Error!';
});

<tbody>
    <tr ng-repeat="store in stores">
        <td>{{store.name}}</td>
        <td> {{store.type}} </td>
        <td><span ng-repeat="client in store.clients"> <!-- use data here -->
                {{client.name}}
            </span>
        </td>
        <td>{{store.address}}</td>
    </tr>
</tbody

Answer 3

使用{$ part2}并检查$ part2在asignment之后是否有值

$sql =  "SELECT DomainCategory.Name "
    . "FROM DomainName_Client, DomainNameType, DomainCategory, OrderDomain_Client "
    . "WHERE DomainName_Client.Name='{$part1}' "
    . "AND DomainNameType.Name='{$part2}' "
    . "AND DomainName_Client.TypeID=DomainNameType.ID "
    . "AND DomainCategory.ID=DomainName_Client.DomainCategoryID "
    . "AND OrderDomain_Client.DomainNameID=DomainName_Client.ID";

Answer 4

使用Join Query而不是简单选择Query with where condition

`"SELECT DomainCategory.Name FROM DomainName_Client join DomainNameType on DomainNameType.ID = DomainName_Client.TypeID join DomainCategory on DomainCategory.ID=DomainName_Client.DomainCategoryID join OrderDomain_Client on OrderDomain_Client.DomainNameID=DomainName_Client.ID WHERE DomainName_Client.Name = '".$part1."' AND DomainNameType.Name = '".$part2."'";`

变量确实在PHP中传递

4 个答案: