PHP does not return database result

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PHP does not return database result

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#1 by (-1 votes)

1

Hello,

I have the following function:

function makeLogin($user, $pass) {
    $pdo = new PDO("mysql:host=".HOSTNAME.";dbname=".DATABASE.";charset=utf8;", USERNAME, PASSWORD);
    $sql = $pdo->prepare("SELECT user, pass FROM users WHERE user = :user AND pass = :pass");
    $sql->bindParam(":user", $user);
    $sql->bindParam(":pass", $pass);
    $sql->execute();
    $users = $sql->fetchAll(PDO::FETCH_ASSOC);
    if(count($users) <= 0) {
        return "false";
    } else {
        return "true";
    }
}

If found in the database, the user and the password, PHP returns true, otherwise false, but does not find the user and the password.

I'm using the following SQL:

CREATE TABLE IF NOT EXISTS 'users' (
  'id' int(10) unsigned NOT NULL AUTO_INCREMENT,
  'user' varchar(36) COLLATE utf8_unicode_ci DEFAULT NULL,
  'pass' varchar(36) COLLATE utf8_unicode_ci NOT NULL,
  PRIMARY KEY ('id')
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=3 ;

INSERT INTO 'users' ('id', 'user', 'pass') VALUES
(1, 'admin', 'admin');

Example usage:

if(makeLogin($_POST['usuario'], $_POST['senha']) == 'true') {
        setcookie('logged', true,  time() + 86400);
} else {
    setcookie('logged', false,  time() + 86400);
}

The post is admin and admin .

Thank you in advance.

php mysql

asked by anonymous 18.01.2017 / 11:17

1 answer

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score -1 · Answer 1

Look, I tested your code here and it worked.

If you are using your code on the hosting server make sure it is not in phpmymadmin style syntax

For example, I went through the same problem sometime.

My query was correct but did not bring results, so I decided to put those single quotes (') and guess what? It worked!

My suggestion

Switch:

$sql = $pdo->prepare("SELECT user, pass FROM users WHERE user = :user AND pass = :pass");

By:

$sql = $pdo->prepare("SELECT 'user', 'pass' FROM 'users' WHERE 'user' = :user AND 'pass' = :pass");