此代码中的某些内容无法正常工作。需要你的帮助。
我在外部文件中编写了一个函数:
function userExists($conn, $user){
$sql = "SELECT COUNT(*) FROM user WHERE email = :email";
$stmt = $conn->prepare($sql);
$stmt->bindParam(':email', $user);
$stmt->execute();
$results = $stmt->fetch(PDO::FETCH_ASSOC);
if(count($results) > 0):
return true;
else:
return false;
endif;
}
我在这里称这个功能:
if(!empty($_POST['email']) && !empty($_POST['password'])):
$email = $_POST['email'];
$password = $_POST['password'];
$records = $conn->prepare('SELECT id,username,email,password,active FROM user WHERE email = :email');
$records->bindParam(':email', $_POST['email']);
$records->execute();
$results = $records->fetch(PDO::FETCH_ASSOC);
if(userExists($conn, $email) === false){
echo 'False';
}else{
echo 'True';
}
endif;
但每次输出都是真的..也许我看不到树木的木材。
THX
答案 0 :(得分:1)
结果将始终大于0,因为您的查询返回值0.因此结果确实包含值。而是这样做
"SELECT COUNT(*) AS Total FROM user WHERE email = :email";"
if($result['Total'] > 0)
{.....}