Question

我的表中有一个用户列表。我如何获取该列表并将其作为一个PHP变量返回，每个用户名用逗号分隔？

Answer 1

您可以使用查询生成以逗号分隔的列表：

SELECT GROUP_CONCAT(username) FROM MyTable

否则你可以获取行并在PHP中加入它们：

$sql = "SELECT username FROM MyTable";
$stmt = $pdo->query($sql);
$users = array();
while ($username = $stmt->fetchColumn()) {
    $users[] = $username;
}
$userlist = join(",", $users);

Answer 2

你会fetch the list from the database，将其存储在an array，然后implode。

Answer 3

我能弄清楚的最好方法是存储每个列或字段的结果，然后回显内爆：

      $result = mysqli_query($conn, $sql) //store the result               
      $cols = array(); //instantiate an array
      while($col = mysqli_fetch_array($result)) {
          $cols[] = $col['username']; //step through results and save each username in array
      }
      echo implode(",",$cols); //turn the array into a comma separated string and echo it

这花了我一段时间来弄清楚该怎么做。希望对您有帮助！

从MySQL PHP创建逗号分隔列表

3 个答案: