如果不满足某些条件,我正在尝试创建错误消息。因此,用户填写表单,如果字段为空或未通过我的验证,则返回错误消息。
这是表格:
if (isset($_POST)) {
if (checkEmail($email) == TRUE && $name != NULL && $surName != NULL) {
mysql_query( "INSERT INTO USR_INFO (NAME, MAIL, SURNAME)
VALUES ('$name', '$email','$surName') ") or die(mysql_error());
header('Location: thanks.php');
}
else {
echo'<form action="<?php echo $_SERVER[\'PHP_SELF\']; ?>" method="POST">
<label for="name">First Name</label>
<input type="text" name="name" id="name" value="' .$_POST['name'].'" />
<span class="required">*</span>
<label for="surName">Last Name</label>
<input type="text" name="surName" id="surName" value="' .$_POST['surName']. '" />
<span class="required">*</span>
<label for="email">E-mail</label>
<input type="email" id="email" name="email" placeholder="example@domain.com" value="' .$_POST['email']. '" />
<span class="required">*</span>
<input type="submit" name="submit" id="submit">
</form>';
}
} else {
echo'<form action="<?php echo $_SERVER[\'PHP_SELF\']; ?>" method="POST">
<label for="name">First Name</label>
<input type="text" name="name" id="name" value="" />
<span class="required">*</span>
<label for="surName">Last Name</label>
<input type="text" name="surName" id="surName" value="" />
<span class="required">*</span>
<label for="email">E-mail</label>
<input type="email" id="email" name="email" placeholder="example@domain.com" value="" />
<span class="required">*</span>
<input type="submit" name="submit" id="submit">
</form>';
}
所以我尝试添加一个数组来显示错误信息,如下所示:
$errorMessage = array();
并使用正确的消息将其添加到html表单字段:
$error[] = "Error Message";
现在我所困扰的是,我只想在用户不符合条件的情况下显示错误
if ($name == NULL) {$error[] = "Error Message";}
if ($surName == NULL) {$error[] = "Error Message 2";}
if (checkEmail($email) == FALSE || NULL) {$error[] = "Error Message 3";}
但我不能让它发挥作用。当我尝试实现这个逻辑时,它将解析页面正常并且验证也可以正常工作,但如果我将所需字段留空,则错误消息将不会显示。我的猜测是我没有正确地循环它。
非常感谢帮助!
编辑:
我尝试了Frosty Z发布的答案,这就是我现在所拥有的:
if (isset($_POST)) {
$errorMessage = array();
if ($name == '') { $errors[] = "Input name please." }
if ($surName == '') { $errors[] = "Input last name please." }
if (!checkEmail($email)) { $errors[] = "Email address not valid." }
if (count($error) == 0) {
mysql_query( "INSERT INTO USR_INFO (NAME, MAIL, SURNAME)
VALUES ('$name', '$email', '$surName') ") or die(mysql_error());
header('Location: thanks.php');
exit;
else {
if (count($errors) > 0)
echo "<p>Sorry, there are problems with the information you have provided:</p>";
foreach($errors as $error)
echo '<p class="error">'.$error.'</p>';
echo'<form action="<?php echo $_SERVER[\'PHP_SELF\']; ?>" method="POST">
<label for="name">Name</label>
<input type="text" name="name" id="name" value="' .$_POST['name'].'" />
<span class="required">*</span>
<label for="surName">Last name</label>
<input type="text" name="surName" id="surName" value="' .$_POST['surName']. '" />
<span class="required">*</span>
<label for="email">E-mail</label>
<input type="email" id="email" name="email" placeholder="example@domain.com" value="' .$_POST['email']. '" />
<span class="required">*</span>
<input type="submit" name="submit" id="submit">
</form>';
}
} else {
echo'<form action="<?php echo $_SERVER[\'PHP_SELF\']; ?>" method="POST">
<label for="name">Name</label>
<input type="text" name="name" id="name" value="" />
<span class="required">*</span>
<label for="surName">Achternaam</label>
<input type="text" name="surName" id="surName" value="" />
<span class="required">*</span>
<label for="email">E-mail</label>
<input type="email" id="email" name="email" placeholder="example@domain.com" value="" />
<span class="required">*</span>
<input type="submit" name="submit" id="submit">
</form>';
}
这样我的页面就不会被解析了。我有错误报告但除了
之外它没有显示任何内容内部服务器错误500
在我的控制台日志(Firebug)
中答案 0 :(得分:3)
以下是对错误消息的最小处理的一些重写。
顺便说一句,你应该考虑采用一个不错的PHP框架来帮助你处理很多常见的开发任务。$name = '';
$surName = '';
$email = '';
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
$name = $_POST['name'];
$surName = $_POST['surName'];
$email = $_POST['email'];
$errors = array();
if ($name == '') { $errors[] = "Please type your name."; }
if ($surName == '') { $errors[] = "Please type your surname."; }
if (!checkEmail($email)) { $errors[] = "Wrong email format."; }
if (count($errors) == 0) {
// tip: use PDO or mysqli functions instead of mysql ones to bind variables.
// currently there is a risk of SQL injection here
mysql_query("INSERT INTO USR_INFO (NAME, MAIL, SURNAME)
VALUES ('$name', '$email','$surName') ") or die(mysql_error());
header('Location: thanks.php');
exit;
}
}
if (count($errors) > 0)
echo '<p>Sorry, there are problems with the information you have provided:</p>';
foreach($errors as $error)
echo '<p class="error">'.$error.'</p>';
echo '<form action="'.$_SERVER['PHP_SELF'].'" method="POST">
<label for="name">First Name</label>
<input type="text" name="name" id="name" value="'.htmlspecialchars($name).'" />
<span class="required">*</span>
<label for="surName">Last Name</label>
<input type="text" name="surName" id="surName" value="'.htmlspecialchars($surName).'" />
<span class="required">*</span>
<label for="email">E-mail</label>
<input type="email" id="email" name="email" placeholder="example@domain.com" value="'.htmlspecialchars($email).'" />
<span class="required">*</span>
<input type="submit" name="submit" id="submit">
</form>';