PHP MySQL inserts data

Use MySQLi and PDO towards MySQL insert data

After creating the database and tables , We can add data to the table .

Here are some grammar rules ：

• PHP in SQL Query statements must use quotation marks
• stay SQL String values in query statements must be quoted
• The value of a numeric value does not need quotation marks
• NULL Values don't need quotes

INSERT INTO Statements are usually used to direct MySQL Table add new record ：

INSERT INTO table_name (column1, column2, column3,...)
VALUES (value1, value2, value3,...)

Learn more about SQL knowledge , Please check our  SQL course .

We have created tables in the previous chapters "MyGuests", Table fields have : "id", "firstname", "lastname", "email" and "reg_date". Now? , Let's start filling the table with data .

	Be careful ：  If the column is set AUTO_INCREMENT ( Such as "id" Column ) or TIMESTAMP ( Such as "reg_date" Column ),, We don't need to be in SQL Specify a value in the query statement ; MySQL Automatically adds a value to the column .

The following example shows "MyGuests" A new record has been added to the table :

example (MySQLi - object-oriented )

<?php $servername = "localhost"; $username = "username"; $password = "password"; $dbname = "myDB"; // Create connection $conn = new mysqli($servername, $username, $password, $dbname); // Detection connection if ($conn->connect_error) { die(" The connection fails : " . $conn->connect_error); } $sql = "INSERT INTO MyGuests (firstname, lastname, email) VALUES ('John', 'Doe', '[email protected]ample.com')"; if ($conn->query($sql) === TRUE) { echo " New record inserted successfully "; } else { echo "Error: " . $sql . "<br>" . $conn->error; } $conn->close(); ?>

example (MySQLi - Process oriented )

<?php $servername = "localhost"; $username = "username"; $password = "password"; $dbname = "myDB"; // Create connection $conn = mysqli_connect($servername, $username, $password, $dbname); // Detection connection if (!$conn) { die("Connection failed: " . mysqli_connect_error()); } $sql = "INSERT INTO MyGuests (firstname, lastname, email) VALUES ('John', 'Doe', '[email protected]')"; if (mysqli_query($conn, $sql)) { echo " New record inserted successfully "; } else { echo "Error: " . $sql . "<br>" . mysqli_error($conn); } mysqli_close($conn); ?>

example (PDO)

<?php $servername = "localhost"; $username = "username"; $password = "password"; $dbname = "myDBPDO"; try { $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password); // Set up PDO Wrong mode , Used to throw an exception $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $sql = "INSERT INTO MyGuests (firstname, lastname, email) VALUES ('John', 'Doe', '[email protected]')"; // Use exec() , No results returned $conn->exec($sql); echo " New record inserted successfully "; } catch(PDOException $e) { echo $sql . "<br>" . $e->getMessage(); } $conn = null; ?>