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Encrypting Password - Make your Login More Secure with md5() function.

Tutorials > Encrypting Password - Make your Login More Secure with md5() function.


Learn how to encrypt your mySQL data record with a powerful function "md5()". Great for secure your passsword record in Member Login system. This function out-put a 32 character hexadecimal number.

Syntax :

md5(string str [, bool raw_output]);

This tutorial shows in 1 file "md5.php".

md5.php

This file including with a form with 1 text fields "password" and show the result when you submit.

Source Code

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<form id="form1" name="form1" method="post" action="<? echo $PHP_SELF; ?>">
<input name="password" type="text" id="password" />
<input type="submit" name="Submit" value="Submit" />
</form>
<hr />
<?
if($_POST['password']){
// if POST value "password" exists.
$result=md5($_POST['password']);
// Make the md5() value and put it in $result.
echo "md5() result of '$_POST[password]' is : <br>";
echo $result;
}
?>

</body>
</html>

* You can apply it to your Member-Login script for more security.

  • Apply md5() to the real in-put password and put it's result as "password" into database when sign-up in the first time.
  • When you make the Login script, apply md5() for the in-put password as the same above but this result for check the matching in the database.
    See Login - Logout with a Session in 1 file.

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