How to put remember me (cookie) in PHP -

i making login page. can login page. in login page need put remember me checkbox , php. part in codes need put "remember me " codes ? please me.

this login1.php

<?php session_start(); //database connection $servername     = "localhost"; $username       = "root"; $password       = ""; $dbname         = "lala";  // create connection $link = mysql_connect($servername,$username,$password) or die("could not connect");  $db= mysql_select_db("$dbname",$link) or die ("could not select database");  $login = $_post['login']; $password = md5($_post['password']); $rememberme = $_post['remember_me'];  $result = mysql_query("select * admin working_id = '$login' , password = '$password'"); $count = mysql_num_rows($result);  if($count==1) {     //check remember me on or off     //if off session login     //else add cookie      $_session['username'] = $login;     $_session['password'] = $password;      $result1 = mysql_query("select * admin working_id = '$login' , password = '$password'");     while($row = mysql_fetch_array($result1)){         $_session['gp'] = $row['gptype'];     }     header('location:dashboard.php'); } else  {     $_session['username'] = null;     $_session['password'] = null;      ?>     <script type = "text/javascript">     alert("sorry , wrong username or password");     settimeout("location.href = 'abc.php';");     </script>     <?php } ?> 

this html

    <p><input type="password" name="password" value="" placeholder="password"></p>     </div>      <div id="form2">      <p class="remember_me">       <label>          <input type="checkbox" name="remember_me" id="remember_me">         remember me        </label>     </p></div>     <div id="form3">     <p class="submit"><input type="submit" name="commit" value="login"></p>   </form>   </div> 

just use code after getting $login , $password

<?php    if($_post["remember_me"]=='1' || $_post["remember_me"]=='on')                     {                     $hour = time() + 3600 * 24 * 30;                     setcookie('username', $login, $hour);                          setcookie('password', $password, $hour);                     } ?>