how making login authentication
which authenticate username and password
if username and password authenticate from database then go to next page
otherwise redirect to login page
how login authentication built
Moderator: General Moderators
Re: how login authentication built
Hi there 
Below I'll write down in basics how to do so...
Registertion page:
- Write a new file with HTML code that will ask the user to fill user name, password & etc... /* In the HTML code there should be a <form> tag with "method=post" option... & a submit button. */
- This information should be sent into a PHP script, this PHP script will store the username & all of the other details asked from the user - except for the PASSWORD- into the database.
- The PHP will convert the password to MD5 type /* $PASSWORD=md5($_POST['password']); */ & will store the result into the database as well... /* I like to work with the MD5 encryption type... it is very well documented over the Internet & don't take lot of process from the CPU.
Login page:
- Write a new file with HTML code that will ask the user to fill it's username & password /* In the HTML code there should be a <form> tag with "method=post" option... & a submit button. */
- This information should be sent into a PHP script, this PHP script will check if the username exists inside a specific database, if it so... it will convert the Password that the user has filled into an MD5 encryption & will match it with the user password inside the database.
If login succeeded use the header function to redirect the user to the next page & if not it will be redirected to the login page again.. /* header("Location: http://www.google.com"); */
This is the basic!!
Hope that I helped.
Below I'll write down in basics how to do so...
Registertion page:
- Write a new file with HTML code that will ask the user to fill user name, password & etc... /* In the HTML code there should be a <form> tag with "method=post" option... & a submit button. */
- This information should be sent into a PHP script, this PHP script will store the username & all of the other details asked from the user - except for the PASSWORD- into the database.
- The PHP will convert the password to MD5 type /* $PASSWORD=md5($_POST['password']); */ & will store the result into the database as well... /* I like to work with the MD5 encryption type... it is very well documented over the Internet & don't take lot of process from the CPU.
Login page:
- Write a new file with HTML code that will ask the user to fill it's username & password /* In the HTML code there should be a <form> tag with "method=post" option... & a submit button. */
- This information should be sent into a PHP script, this PHP script will check if the username exists inside a specific database, if it so... it will convert the Password that the user has filled into an MD5 encryption & will match it with the user password inside the database.
If login succeeded use the header function to redirect the user to the next page & if not it will be redirected to the login page again.. /* header("Location: http://www.google.com"); */
This is the basic!!
Hope that I helped.