PHP Simple Sign-in Tutorial

Furqan Aziz | 17 Oct 2013 | Tutorials

PHP Simple Sign-in Tutorial
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This tutorial is about simple sign-in php code for beginners. You can also protect pages from unauthorized persons.
  1. You will learn to make one database table, one form , checking php page, user session page, config page and secret page.
  2. First create a simple form using below code or you can use your own sign in form.
    • <form  method="post" action="CheckLogin.php">
      <input type="email" name="inputEmail"  id="inputEmail" placeholder="Email">
      <input type="password" name="inputPassword" id="inputPassword" placeholder="Password" maxlength="15" minlength="6"  >
      <button type="submit" >Sign in</button>
  3. Now you will run below SQL Code to make a simple table in your database.
    • CREATE TABLE IF NOT EXISTS `members` (
      `id` int(4) NOT NULL AUTO_INCREMENT,
      `name` varchar(65) NOT NULL DEFAULT '',
      `email` varchar(65) NOT NULL DEFAULT '',
      `password` varchar(65) NOT NULL DEFAULT '',
      `Type` varchar(10) NOT NULL,
      PRIMARY KEY (`id`)
  4. Now its time to connect to the database, so we will make database connection file config.php
    • <?php
      $con = mysql_connect("localhost","root","yourpaswword");
      if (!$con)
      die('Could not connect: ' . mysql_error());
      mysql_select_db("YourDbName", $con);
  5. Now when form submitted it will go to CheckLogin.php page and here is code for page.
    • <?php
      // Start Session because we will save some values to session varaible.
      // include config file for php connection
      // memebers table name
      // Define $myusername and $mypassword
      // To protect MySQL injection
      $myusername = stripslashes($myusername);
      $mypassword = stripslashes($mypassword);
      $myusername = mysql_real_escape_string($myusername);
      $mypassword = mysql_real_escape_string($mypassword);
      below query will check username and password exists in system or not
      $sql="SELECT * FROM $tbl_name WHERE email='$myusername' AND password='$mypassword'";
      // Mysql_num_row is used for counting table records
      // If result matched $myusername and $mypassword, table record must be equal to 1 	
      	$sql2=mysql_query("SELECT Type,email,name FROM $tbl_name WHERE email='$myusername'");
      //Depending on type of user we will redirect to various pages		
      	if($row[0] == 'abc')	 { header( "location:http://localhost/abc.php"); 	}
      	else if($row[0] == 'xyz')	 { header( "location:http://localhost/xyz.php"); 	}
      	else if($row[0] == 'Admin')	 { header( "location:http://localhost/admin.php"); 	}
      	else    {   header( "location:http://localhost/index.php");  }
  6. Now on user pages like abc.php, xyz.php or admin.php your will write below lines on top of the page to make them protected.
    • <?php
  7. Below is code for UserSession_xyz.php. you will also make other pages for other users.
    • <?php
Above tutorial is very useful for making websites pages secure and make user Sing-In System. You can also use some features of this tutorials. For more information please post a comment on Blog.
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