我想實現的功能,其中它會檢查是否如果用戶在我的數據庫已經存在,是它會插入所有註冊數據,但它似乎沒有工作=(可能有人請幫我找出錯誤所在。真的很感謝所有的答案提前。PHP檢查用戶是否存在PDO
<?php
require '../ppuyakul/php/db_conn.php';
$message = '';
//Prepare date
$DOB = date("Y-m-d", strtotime($_POST['year'].'-'. $_POST['month'].'-'. $_POST['day']));
$accessType = "0";
//Check enpty field
if(!empty($_POST['email']) && !empty($_POST['password']) && !empty($_POST['fullname']) && !empty($_POST['username']) && !empty($_POST['password_confirmation']) && !empty($_POST['gender']) && !empty($_POST['country']) && !empty($_POST['state']) && !empty($_POST['city']) && !empty($_POST['day']) && !empty($_POST['month']) && !empty($_POST['year'])):
// Enter the new user in the database
$sql = "INSERT INTO assignment2 (fullname, username, email, password, gender, country, state, city, DOB, type) VALUES (:fullname, :username, :email, :password, :gender, :country, :state, :city, :DOB, :type)";
$stmt = $conn->prepare($sql);
$stmt->bindParam(':fullname', $_POST['fullname']);
$stmt->bindParam(':username', $_POST['username']);
$stmt->bindParam(':email', $_POST['email']);
$stmt->bindParam(':password', password_hash($_POST['password'], PASSWORD_BCRYPT));
$stmt->bindParam(':gender', $_POST['gender']);
$stmt->bindParam(':country', $_POST['country']);
$stmt->bindParam(':state', $_POST['state']);
$stmt->bindParam(':city', $_POST['city']);
$stmt->bindParam(':DOB', $DOB);
$stmt->bindParam(':type', $accessType);
$chk = $conn->prepare("SELECT username FROM assignment2 WHERE username = :name");
$chk->bindParam(':name', $username);
$chk->execute();
if($chk->rowCount() > 0):
$message = 'Error ! ! User already exists';
else:
if($stmt->execute()):
$message = 'Successfully created new user';
else:
$message = 'Sorry there must have been an issue creating your account';
endif;
endif;
endif;
?>
$ username是如何設置的? –
嗨Paul感謝so muc h爲您的回覆,我嘗試在這裏聲明 '$ all_rows = $ chk-> fetchAll(PDO :: FETCH_ASSOC); 的foreach($ ALL_ROWS爲$行): $用戶名= $行[ 「用戶名」]; $ _GLOBAL ['username'] = $ username; endforeach;' 之前'如果($ chk-> rowCount時()> 0):' 但仍沒有運氣 –
我看不出有什麼最初發布的代碼?當我搜索$ username時(在我的第一條評論之前),這個頁面上只有一個'點擊'。上面的代碼中沒有foreach。爲你的rowCount檢查添加一個else,並打印'找不到行'(或其他),看看你得到了什麼。你也可以使用$ username來查看輸出結果。 –