php – 在foreach循环中使用SQL结果

我觉得我错过了一些愚蠢明显的东西,我试图获得SQL查询的结果,然后在循环中使用它们.我觉得我错过了一些愚蠢明显的东西,我已经尝试过,有没有注释掉的线.

<?PHP
$sentToID = $_SESSION['userID'];

$query = "SELECT *
          FROM messages
          WHERE sentToID = '$sentToID'";

$results = MysqL_query($query);
//$userData = MysqL_fetch_array($results, MysqL_ASSOC);

foreach ($results as $result){
    $messageID = $result['messageID'];
    $sentFromID = $result['sentFromID'];
    $subject = $result['subject'];
    $body = $result['body'];
    $dateTime = $result['dateTime'];

    $query = "SELECT usertype 
              FROM user
              WHERE userID = '$sentFromID'";
    $messageResult = MysqL_query($query);
    $messageData = MysqL_fetch_array($messageResult, MysqL_ASSOC);

    $usertype = $messageData['usertype'];

    $query = "SELECT * 
              FROM $usertype
              WHERE userID = '$sentFromID'";

    $messageResult = MysqL_query($query);
    $messageData = MysqL_fetch_array($messageResult, MysqL_ASSOC);

    if ($usertype == "jobseeker"){
        $forname = $messageData['forename'];
        $surname = $messageData['surname'];
        echo "<div><p>" . $forename . " " . $surname . "</p>
              <p>Subject: " . $subject ."</p>
              <p>Body: " . $body . "</p></div>";
    }
    if ($usertype == "employer"){
        $forname = $messageData['forename'];
        $surname = $messageData['surname'];
        $companyName = $messageData['companyName'];

        echo "<div><p>" . $forename . " " . $surname . " - " . $companyName . "</p>
              <p>Subject: " . $subject ."</p>
              <p>Body: " . $body . "</p></div>";
    }
}
?>

任何帮助将不胜感激

解决方法:

而不是你的foreach(),你应该做这样的事情(更多信息见mysql_query() manual page)：

while($result = MysqL_fetch_assoc($results)) {
    // your code
}