php sql connection
<?php $servername = "localhost"; $username = "username"; $password = "password"; $dbname = "myDB"; // Create connection $conn= mysqli_connect($servername,$username,$password,$dbname); // Check connection if (!$conn) { die("Connection failed: " . mysqli_connect_error()); } echo "Connected Successfully."; ?>
mysql cli connect with password
mysql --user=root --password=mypass
database connectivity in php
<?php ///////////neha jaiswal///// /////set variable///////// $serve="localhost"; $user="root"; $password=""; $db="cart_system";///database name ///create connection with db//// $conn=mysqli_connect($serve,$user,$password,$db); ////check condition for connection fail or not if ($conn) { echo "connection success"; }else {echo "connection unsuccess"; } ?>
test mysql connection
Example (MySQLi Object-Oriented) <?php $servername = "localhost"; $username = "username"; $password = "password"; // Create connection $conn = new mysqli($servername, $username, $password); // Check connection if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error); } echo "Connected successfully"; ?> Example (MySQLi Procedural) <?php $servername = "localhost"; $username = "username"; $password = "password"; // Create connection $conn = mysqli_connect($servername, $username, $password); // Check connection if (!$conn) { die("Connection failed: " . mysqli_connect_error()); } echo "Connected successfully"; ?> Example (PDO) <?php $servername = "localhost"; $username = "username"; $password = "password"; try { $conn = new PDO("mysql:host=$servername;dbname=myDB", $username, $password); // set the PDO error mode to exception $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); echo "Connected successfully"; } catch(PDOException $e) { echo "Connection failed: " . $e->getMessage(); } ?>
using mysql database with php
<?php $servername = "localhost"; $username = "yourusername"; // For MYSQL the predifined username is root $password = "yourpassword"; // For MYSQL the predifined password is " "(blank) // Create connection $conn = new mysqli($servername, $username, $password); // Check connection if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error); } echo "Connected successfully"; ?>
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