我试图从登录表单中转义输入,以防止sql注入。但我得到的错误是:
致命错误:未捕获错误:在F:\ Apache24 \ htdocs \ Site1 \ user \ login.php中调用未定义函数mysql_real_escape_string():17堆栈跟踪:F:\ Apache24 \ htdocs中抛出#0 {main}第17行的Site1 \ user \ login.php
我还没有清理或验证用户输入,因为我还在构建页面,但我想测试它是否正确连接到数据库。这是登录页面的代码:
<!DOCTYPE html>
<?php
include('../includes/pdo_connect.php');
$expiry = time()+60*60*24;
if(!setcookie('userdata[user_id]', $user_id, $expiry, '', '', '', TRUE)){
echo "<script>alert('could not set cookie');</script>";
}
?>
<html>
<head>
<title>Login</title>
<link rel="stylesheet" type="text/css" href="../styles/login_style.css">
<?php
global $con;
if(isset($_POST['login_ok'])){
$email = mysql_real_escape_string($_POST['email']);
$pass = mysql_real_escape_string($_POST['password']);
try{
$query = "select * from user where user_email=':email' and password=':pass'";
$stmt = $con->prepare();
$stmt->bindParam(':email', $email, PDO::PARAM_STR);
$stmt->bindParam(':pass', $pass, PDO::PARAM_STR);
$stmt->execute();
$result = $stmt->fetchAll();
foreach($result as $row) {
$user_id = $row['user_id'];
//$user_first_name = $row['user_first_name'];
header("Location:profile.php");
}
} catch(PDOException $e){
echo "Error: ".$e->getMessage();
}
}
?>
</head>
<body>
<div class="wrapper">
<header>
</header>
<div class="form_div">
<div class="form">
<form id="register_form" method="post" action="" autocomplete="autocomplete">
<table>
<tr>
<td id="label">Email: </td>
<td id="input"><input type="text" name="email" required="required" id="input_box"></td>
</tr>
<td id="label">Password: </td>
<td id="input"><input type="password" name="password" id="input_box"></td>
</tr>
<tr id="button_row">
<td colspan="2"><input type="reset" value="Reset" id="button">
<input type="submit" value="Login" id="button" name="login_ok"></td>
</tr>
</table>
</form>
</div>
</div>
</div>
</body>
</html>
答案 0 :(得分:2)
mysql_
API已过时,已从PHP中删除(支持PDO和mysqli_
)。
你正在使用PDO,所以你应该使用PDO方法来防御SQL注入,你已经是:
$stmt->bindParam(':email', $email, PDO::PARAM_STR);
足以抵御SQL注入。