[英]Mysqli:mysqli_stmt::bind_param(): Number of variables doesn't match number of parameters in prepared statement
[英]mysqli_stmt_bind_param(): Number of variables doesn't match number of parameters in prepared statement in bind param
我收到此错误。我想注册到页面。 mysqli_stmt_bind_param():变量数与绑定参数中准备好的语句中的参数数不匹配。 `
<?php if(isset($_POST['submit'])) { // Was the form submitted?
$link = mysqli_connect("localhost", "root", "", "databaseInitialization") or die ("Connection Error " . mysqli_error($link));
$sql = "INSERT INTO user(first_name, last_name, email, password, bio, location, industry,salt) VALUES(?,?,?,?,?,?,?,?)";
if ($stmt = mysqli_prepare($link, $sql)) {
$fname = $_POST['fname'];
$lname = $_POST['lname'];
$email = $_POST['email'];
$_SESSION['email'] = $email;
$bio = $_POST['bio'];
$location = $_POST['location'];
$industry = $_POST['industry'];
$salt = mt_rand();
$password = password_hash($salt.$_POST['pass'], PASSWORD_BCRYPT) or die("bind param");
//echo "before bind";
mysqli_stmt_bind_param($stmt, 'sssssss', $fname, $lname, $password, $email, $bio, $location, $industry) or die("bind param");
//echo "after bind";
if(mysqli_stmt_execute($stmt)) {
echo "<h4><b><center>Success</center></b></h4>";
//this redirects to user.php - but still need to log in
header('location: user.php');
} else {
echo "<h4><b><center>Failed</center></b></h4>";
printf("<b><center>Error: %s</center></b>.\n", mysqli_stmt_error($stmt));
}
$result = mysqli_stmt_get_result($stmt);
}
}
else { ?>`
在您的插入中,有 8 列,只有 7 个绑定
1 2 3 4 5 6
INSERT INTO user(first_name, last_name, email, password, bio, location,
7 8
industry,salt)
VALUES(?,?,?,?,?,?,?,?)
1 2 3 4 5 6 7 8
绑定,缺少一个,大概是salt
1234567
mysqli_stmt_bind_param($stmt, 'sssssss',
1 2 3 4 5 6 7
$fname, $lname, $password, $email, $bio, $location, $industry) or die("bind param");
s、列和变量的数量必须相同,在本例中为 8。要修复只需在bind_param()
添加一个s
和$salt
,如下所示:
mysqli_stmt_bind_param($stmt, 'ssssssss', $fname, $lname, $password, $email, $bio, $location, $industry, $salt) or die("bind param");
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