Update README.md

Author: akshaykurhekar

README.md

@@ -1,22 +1,3 @@
-<!-- conection for database using mysqli for local host -->
-
-<?php
-
-$con = mysqli_connect("localhost","root","password","database_name");
-
-?>
-
-<!-- connection by PDO -->
-
-<?php
-	$user='root';
-	$pass='';
- $dbname='database_name';
-
- $conn = new PDO('mysql:host=localhost;dbname= database_name', $user, $pass);
-if (!$conn) {
-die("Connection failed: " . $conn->connect_error);
-}
-	$conn->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
-?>
-
+SQL Database Connectivity using Mysqli and PDO method in PHP
+ 
+ PDO method is more secure then mysqli