我正在编写一个用于创建登录用户名和密码的表格。
如果帐户创建成功，那么我希望该用户进入实际的LOGIN表单。
我创建了一系列检查，并传递了变量$errcheck，以便程序知道该怎么做。如果有错误，$errcheck将被设置为1。默认值为0。
如果输入字段中有错误，则将再次显示帐户创建表单，如果一切正常，则会将用户详细信息插入表中，并将用户带到“登录”页面。
但是，每次将信息添加到表后，我只能让页面重新加载自身。我在表单的操作部分所做的事情是否被允许？我继续并包含了所有代码，以防对此有任何疑问。谢谢。
<!DOCTYPE html>
<head>
<style>
.error {color: #FF0000;}
</style>
</head>
<body>
<?php
$busow_namef = $busow_namel= $owner_email = $bus_psswd = $psswd_confirm = "";
$busname_ERR = $busowname_ERR = $owneremail_ERR = $psswd_ERR =
$psswdconfirm_ERR = "";
$errcheck = 0;
if ($_SERVER["REQUEST_METHOD"]=="POST") {
//??????????????????? Check Login information ???????????????????
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
if (empty($_POST["busow_namef"])) {
$busowname_ERR = "Business owner's name is required";
$errcheck = 1;
} else {
$busownamef = test_input($_POST["busow_namef"]);
}
if (empty($_POST["busow_namel"])) {
$busowname_ERR = "business owner's name is required";
$errcheck = 1;
} else {
$busownamel = test_input($_POST["busow_namel"]);
}
if (empty($_POST["bus_psswd"])) {
$psswd_ERR = "You must enter a password.";
$errcheck = 1;
} else if ((mb_strlen($_POST["bus_psswd"])) < 8) {
$psswd_ERR = "The password must be 8-10 characters long and only include numbers and letters.";
$errcheck = 1;
} else {
$bus_psswd = test_input($_POST["bus_psswd"]);
}
if (empty($_POST["psswd_confirm"])) {
$psswdconfirm_ERR = "Please confirm password.";
$errcheck= 1;
} else if ($_POST["psswd_confirm"] != $_POST["bus_psswd"]) {
$psswdconfirm_ERR = "The passwords do not match.";
$errcheck = 1;
} else {
$psswd = test_input($_POST["psswd_confirm"]);
$h_psswd = password_hash($psswd, PASSWORD_DEFAULT);
}
if (empty($_POST["tandc"])) {
$checktandc_ERR= "You must accept the terms and conditions.";
$errcheck= 1;
} else {
$tandc = test_input($_POST["tandc"]);
}
if (empty($_POST["owner_email"])) {
$owneremail_ERR = "Please enter an email address.";
$errcheck = 1;
} else {
$_POST["owner_email"] = (filter_var($_POST["owner_email"], FILTER_SANITIZE_EMAIL));
}
if (filter_var($_POST["owner_email"] , FILTER_VALIDATE_EMAIL)){
$owneremail = $_POST["owner_email"];
} else {
$owneremail_ERR = "Please enter a valid email address.";
$errcheck = 1;
}
//???????????????? Connect to database ??????????????????????????
$link = mysqli_connect('domain', 'user', 'passwd');
if (!$link) {
die('Could not connect: ' . mysqli_error());
}
mysqli_select_db(database, $link);
if (!mysqli_select_db(louisville_ky1, $link)) {
echo "database not selected";
} else {
$sql = "SELECT owner_email FROM 3bus_owners WHERE owner_email = '$owneremail' ";
$result = mysql_query($sql, $link);
if (mysql_num_rows($result) > 0 ) {
$errcheck = 1;
$owneremail_ERR = "This email is already registered. Please register with another address or click login.";
} else {
$errcheck = 0;
$query = "INSERT INTO 3bus_owners (owner_email, h_psswd, busow_namef, busow_namel) VALUES ('$owneremail', '$h_psswd', '$busownamef',
'$busownamel')";
$result2 = mysql_query($query, $link);
} //end if num rows >0
}//end connection check
} // ???????????????????? end if server request method ????????????????
?>
<!-- ~~~~~~~~~~~~~~~~~~~~~~~~Begin HTML FORM~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<h2>Create Business Login</h2>
<br>
<form method="post" action="<?php if ($errcheck = 1) { echo
htmlspecialchars($_SERVER["PHP_SELF"]);
} else { echo 'ownersignin.php'; }?>">
Business Owner's Name:<br>
First Name:<br><input type="text" name="busow_namef" value="<?php echo
$busow_namef;?>">
<span class="error">* <?php echo $busowname_ERR;?></span>
<br>
Last Name:<br><input type="text" name="busow_namel"value="<?php echo
$busow_namel;?>">
<span class="error">* <?php echo $busowname_ERR;?></span>
<br>
Business Owner's E-mail: *this will be your username for login and does not have to be posted in listing
<br>
<input type="text" name="owner_email" size="40"value="<?php echo
$owner_email;?>">
<span class="error">*<?php echo $owneremail_ERR;?></span>
<br><br>
Password: <input type="password" name="bus_psswd" size="11" maxlength="10">
<span class="error">*<?php echo $psswd_ERR;?></span>
<br>
Confirm Password: <input type="password" name="psswd_confirm" size="11" maxlength="10">
<span class="error">*<?php echo $psswdconfirm_ERR;?></span>
<br>
<br>
<input type="checkbox" name="tandc">I have read and accept the
<a href="/termsandconditions.php" target= "_blank">Terms and
Conditions</a>.
<span class="error">*<?php echo $checktandc_ERR;?></span>
<br>
<br>
<input type="submit" name="submit" value="Create Login">
</form>
</body>
答案 0 :(得分：0)
snippit：
<form method="post" action="<?php if ($errcheck = 1) { echo htmlspecialchars($_SERVER["PHP_SELF"]); } else { echo 'ownersignin.php'; }?>">
我从未见过这样写过的表单动作属性，但是...尝试将“ PHP_SELF”周围的“双引号”更改为单引号：$ _SERVER ['PHP_SELF']。那可能会引起问题，因为它可能被解释为：
action="<?php if ($errcheck = 1) { echo htmlspecialchars($_SERVER["
然后，验证该代码示例是否来自以下页面：“ ownersignin.php”。听起来好像是此页面的名称，而不是表单将重定向到的页面的名称。
echo 'ownersignin.php';
如果这是您的代码所在页面的名称，则它将无限循环地发送给您。
答案 1 :(得分：0)
注册成功后，您不应重新打印注册表格。而是将用户重定向到登录表单。
在完成所有验证检查后，请执行以下操作：
if (!$errcheck) {
header("Location: ownersignup.php");
exit;
}
?>
<!-- ~~~~~~~~~~~~~~~~~~~~~~~~Begin HTML FORM~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<h2>Create Business Login</h2>
<br>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>">
...