我有 3 個網頁，一個用于登錄，一個用于注冊，最后一個是主頁（索引）。我有 2 個來自登錄的變量和 5 個來自注冊的變量，所有變量都被發送到主頁，因此當我在登錄變量中注冊時沒有值，因此會出現錯誤“注意未定義的索引” ，當我注冊時，也會發生同樣的情況，但錯誤顯示了登錄的變量。我在谷歌上進行了很多搜索，發現了一個名為 unset 的函數來禁用變量，但沒有任何反應。// Sous WAMP$bdd = new PDO('mysql:host=localhost;dbname=test exbook;charset=utf8', 'root', '');$reponse = $bdd->query('SELECT * FROM registration');$nom = $_POST['nom'];$birthday = $_POST['birthday'];$genre = $_POST['genre'];$email = $_POST['email'];$password = password_hash($_POST['password'], PASSWORD_DEFAULT);if (isset($nom , $birthday , $genre , $email, $password )) { unset($nom); unset($birthday); unset($genre); unset($email); unset($password);} else { $req = $bdd->prepare('INSERT INTO registration(`Nom`, `Date de naissance`, `Genre`, `Email`, `Password`) VALUES(?,?,?,?,?)'); $req->execute(array($nom, $birthday, $genre, $email, $password));}while ($donnees = $reponse->fetch()) { echo $donnees['Nom'];}$bdd = new PDO('mysql:host=localhost;dbname=test exbook;charset=utf8', 'root', '');$emailsignup = $_POST['emailsignup'];if (isset($emailsignup)) { unset($emailsignup);} else{ $bdd1 = $bdd->query('SELECT * FROM registration WHERE $emailsignup');}感謝您閱讀本文并盡力提供幫助。祝你今天過得愉快 ：）
1 回答
倚天杖
TA貢獻1828條經驗 獲得超3個贊
未定義索引錯誤來自 $_POST 變量。當您嘗試emailsignup參數nom, birthday...時，$_POST 數組中不存在。你可以這樣做：
// Sous WAMP
$bdd = new PDO('mysql:host=localhost;dbname=test exbook;charset=utf8', 'root', '');
$reponse = $bdd ->query('SELECT * FROM registration');
$hasnom=isset($_POST['nom']);
$hasbirthday=isset($_POST['birthday']);
$hasgenre=isset($_POST['genre']);
$hasemail=isset($_POST['email']);
$haspass = $isset($_POST['pass']);
if ($hasnom && $hasbirthday && $hasgenre && hasemail && haspass) {
$nom=$_POST['nom'];
$birthday=$_POST['birthday'];
$genre=$_POST['genre'];
$email=$_POST['email'];
$password=password_hash($_POST['password'], PASSWORD_DEFAULT);
$req = $bdd ->prepare('INSERT INTO registration(`Nom`, `Date de naissance`, `Genre`, `Email`, `Password`) VALUES(?,?,?,?,?)');
$req->execute(array($nom,$birthday,$genre,$email,$password));
}
while ($donnees = $reponse->fetch())
{
echo $donnees['Nom'];
}
?>
<?php
$bdd = new PDO('mysql:host=localhost;dbname=test exbook;charset=utf8', 'root', '');
$hasemailsignup=isset($_POST['emailsignup']);
if ($hasemailsignup) {
$emailsignup = $_POST['emailsignup'];
$bdd1=$bdd ->query('SELECT * FROM registration WHERE $emailsignup');
}
?>
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