我正在制作测试登录表单，而我正在使用localhosted mysql数据库。我试图通过使用名为pageid的id将整个登录表单放在一个文件中。每个pageid都有它自己的html页面，我拥有一切回声。但就在查询之前（...）;命令，脚本停止在PHP中写入并将其作为普通文本放入。为什么这样，任何人都可以帮助解决它。如果有任何办法更聪明，我愿意接受建议。完整的代码在下面。谢谢你提前:)）
<?php
$connection = new mysqli("localhost", "root", "usbw", "loginform");
if(!isset($_GET["pageid"])) {
header("Location: index.php?pageid=1");
die();
} elseif($_GET["pageid"] == 1) {
echo '
<html>
<head>
<style type="text/css">
html, body {
height: 100%;
}
html {
display: table;
margin: auto;
}
body {
background-color: rgb(208, 128, 0);
display: table-cell;
vertical-align: middle;
}
#username, #password {
width: 300px;
height: 25px;
font-size: 25px;
border-color: black;
}
#login, #register {
font-size: 25px;
background: transparent;
border-color: black;
}
#register {
margin-left: 114px;
}
</style>
</head>
<body>
<form method="post" action="index.php?pageid=7">
<input type="text" id="username" placeholder="Username"><br><br>
<input type="password" id="password" placeholder="Password"><br><br>
<input type="submit" id="login" value="Login">
<input type="button" id="register" value="Register" onclick="window.location = \'index.php?pageid=2\';">
</form>
<?php
if(isset($_POST["username"]) & isset($_POST["password"])) {
$usernameHash = hash("sha512", $_POST["username"]);
$passwordHash = hash("sha512", $_POST["password"]);
$request = "SELECT * FROM users";
$result = $connection -> query($request);
while($user = $result -> fetch_assoc()) {
if($user["username"] == $usernameHash) {
if($user["password"] == $passwordHash) {
header("Location: index.php?pageid=3&userid=" . $user["id"]);
die();
} else {
header("Location: index.php?pageid=4");
die();
}
} else {
header("Location: index.php?pageid=4");
die();
}
}
} else {
echo "not ok";
}
?>
</body>
</html>
';
} elseif($_GET["pageid"] == 2) {
echo '
<html>
<head>
<style type="text/css">
html, body {
height: 100%;
}
html {
display: table;
margin: auto;
}
body {
background-color: rgb(208, 128, 0);
display: table-cell;
vertical-align: middle;
}
#usernameReg, #passwordReg, #passwordConfirm, #firstName, #lastName, #email, #phoneNr {
width: 300px;
height: 25px;
font-size: 25px;
border-color: black;
}
#firstName, #lastName {
width: 233px;
}
#email {
width: 400px;
}
#phoneNr {
width: 200px;
}
#register {
font-size: 25px;
background: transparent;
border-color: black;
}
</style>
</head>
<body>
<form method="post" action="index.php?pageid=8">
<input type="text" id="usernameReg" placeholder="New username"><br><br>
<input type="password" id="passwordReg" placeholder="New password"><br><br>
<input type="password" id="passwordConfirm" placeholder="Confirm password"><br><br><br>
<input type="text" id="firstName" placeholder="First name"><br><br>
<input type="text" id="lastName" placeholder="Last name"><br><br><br>
<input type="text" id="email" placeholder="New email"><br><br>
<input type="text" id="phoneNr" placeholder="Phone number"><br><br>
<input type="submit" id="register" value="Register">
</form>
<?php
if(isset($_POST["usernameReg"]) & isset($_POST["passwordReg"]) & isset($_POST["passwordConfirm"]) & isset($_POST["firstName"]) & isset($_POST["lastName"]) & isset($_POST["email"]) & isset($_POST["phoneNr"])) {
if($_POST["passwordReg"] != $_POST["passwordConfirm"]) {
header("Location: index.php?pageid=6");
die();
}
$usernameHash = hash("sha512", $_POST["usernameReg"]);
$passwordHash = hash("sha512", $_POST["passwordReg"]);
$firstNameHash = hash("sha512", $_POST["firstName"]);
$lastNameHash = hash("sha512", $_POST["lastName"]);
$emailHash = hash("sha512", $_POST["email"]);
$phoneNrHash = hash("sha512", $_POST["phoneNr"]);
$request = "SELECT * FROM users";
$result = $connection -> query($request);
while($user = $result -> fetch_assoc()) {
if($user["username"] != $usernameHash) {
if($user["email"] != $emailHash) {
if($user["phoneNr"] != $phoneNrHash) {
$request = "INSERT INTO users (`username`, `password`, `firstName`, `lastName`, `email`, `phoneNr`) VALUES (\'" . $usernameHash . "\', \'" . $passwordHash . "\', \'" . $firstNameHash . "\', \'" . $lastNameHash . "\', \'" . $emailHash . "\', \'" . $phoneNrHash . "\')";
$result = $connection -> query($request);
header("Location: index.php?pageid=5");
die();
} else {
header("Location: index.php?pageid=6");
die();
}
} else {
header("Location: index.php?pageid=6");
die();
}
} else {
header("Location: index.php?pageid=6");
die();
}
}
} else {
echo "not ok";
}
?>
</body>
</html>
';
} elseif($_GET["pageid"] == 3) {
} elseif($_GET["pageid"] == 4) {
} elseif($_GET["pageid"] == 5) {
} elseif($_GET["pageid"] == 6) {
}
?>
This is how it looks, but shouldn't look. (i.stack.imgur link)
答案 0 :(得分：-1)
虽然这不是打印html页面的正确方法，但替换为以下内容以使其正常工作
<?php
$connection = new mysqli("localhost", "root", "usbw", "loginform");
if(!isset($_GET["pageid"])) {
header("Location: index.php?pageid=1");
die();
} elseif($_GET["pageid"] == 1) {
echo '
<html>
<head>
<style type="text/css">
html, body {
height: 100%;
}
html {
display: table;
margin: auto;
}
body {
background-color: rgb(208, 128, 0);
display: table-cell;
vertical-align: middle;
}
#username, #password {
width: 300px;
height: 25px;
font-size: 25px;
border-color: black;
}
#login, #register {
font-size: 25px;
background: transparent;
border-color: black;
}
#register {
margin-left: 114px;
}
</style>
</head>
<body>
<form method="post" action="index.php?pageid=7">
<input type="text" id="username" placeholder="Username"><br><br>
<input type="password" id="password" placeholder="Password"><br><br>
<input type="submit" id="login" value="Login">
<input type="button" id="register" value="Register" onclick="window.location = \'index.php?pageid=2\';">
</form>
<?php
if(isset($_POST["username"]) & isset($_POST["password"])) {
$usernameHash = hash("sha512", $_POST["username"]);
$passwordHash = hash("sha512", $_POST["password"]);
$request = "SELECT * FROM users";
$result = $connection -> query($request);
while($user = $result -> fetch_assoc()) {
if($user["username"] == $usernameHash) {
if($user["password"] == $passwordHash) {
header("Location: index.php?pageid=3&userid=" . $user["id"]);
die();
} else {
header("Location: index.php?pageid=4");
die();
}
} else {
header("Location: index.php?pageid=4");
die();
}
}
} else {
echo "not ok";
}
?>
</body>
</html>
';
} elseif($_GET["pageid"] == 2) {
echo '
<html>
<head>
<style type="text/css">
html, body {
height: 100%;
}
html {
display: table;
margin: auto;
}
body {
background-color: rgb(208, 128, 0);
display: table-cell;
vertical-align: middle;
}
#usernameReg, #passwordReg, #passwordConfirm, #firstName, #lastName, #email, #phoneNr {
width: 300px;
height: 25px;
font-size: 25px;
border-color: black;
}
#firstName, #lastName {
width: 233px;
}
#email {
width: 400px;
}
#phoneNr {
width: 200px;
}
#register {
font-size: 25px;
background: transparent;
border-color: black;
}
</style>
</head>
<body>
<form method="post" action="index.php?pageid=8">
<input type="text" id="usernameReg" placeholder="New username"><br><br>
<input type="password" id="passwordReg" placeholder="New password"><br><br>
<input type="password" id="passwordConfirm" placeholder="Confirm password"><br><br><br>
<input type="text" id="firstName" placeholder="First name"><br><br>
<input type="text" id="lastName" placeholder="Last name"><br><br><br>
<input type="text" id="email" placeholder="New email"><br><br>
<input type="text" id="phoneNr" placeholder="Phone number"><br><br>
<input type="submit" id="register" value="Register">
</form>
</body>
</html>
';
if(isset($_POST["usernameReg"]) & isset($_POST["passwordReg"]) & isset($_POST["passwordConfirm"]) & isset($_POST["firstName"]) & isset($_POST["lastName"]) & isset($_POST["email"]) & isset($_POST["phoneNr"])) {
if($_POST["passwordReg"] != $_POST["passwordConfirm"]) {
header("Location: index.php?pageid=6");
die();
}
$usernameHash = hash("sha512", $_POST["usernameReg"]);
$passwordHash = hash("sha512", $_POST["passwordReg"]);
$firstNameHash = hash("sha512", $_POST["firstName"]);
$lastNameHash = hash("sha512", $_POST["lastName"]);
$emailHash = hash("sha512", $_POST["email"]);
$phoneNrHash = hash("sha512", $_POST["phoneNr"]);
$request = "SELECT * FROM users";
$result = $connection -> query($request);
while($user = $result -> fetch_assoc()) {
if($user["username"] != $usernameHash) {
if($user["email"] != $emailHash) {
if($user["phoneNr"] != $phoneNrHash) {
$request = "INSERT INTO users (`username`, `password`, `firstName`, `lastName`, `email`, `phoneNr`) VALUES (\'" . $usernameHash . "\', \'" . $passwordHash . "\', \'" . $firstNameHash . "\', \'" . $lastNameHash . "\', \'" . $emailHash . "\', \'" . $phoneNrHash . "\')";
$result = $connection -> query($request);
header("Location: index.php?pageid=5");
die();
} else {
header("Location: index.php?pageid=6");
die();
}
} else {
header("Location: index.php?pageid=6");
die();
}
} else {
header("Location: index.php?pageid=6");
die();
}
}
} else {
echo "not ok";
}
} elseif($_GET["pageid"] == 3) {
} elseif($_GET["pageid"] == 4) {
} elseif($_GET["pageid"] == 5) {
} elseif($_GET["pageid"] == 6) {
}
?>