PHP Insert Data Into MySQL
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PHP Insert Data Into MySQL
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Insert Data Into MySQL Using MySQLi and PDO
After a database and a table have been created, we can start adding data in
them.
Here are some syntax rules to follow:
- The SQL query must be quoted in PHP
- String values inside the SQL query must be quoted
- Numeric values must not be quoted
- The word NULL must not be quoted
The INSERT INTO statement is used to add new records to a MySQL table:
INSERT INTO table_name (column1, column2, column3,...)
VALUES (value1, value2, value3,...)
To learn more about SQL, please visit our SQL tutorial.
In the previous chapter we created an empty table named "MyGuests" with
five columns: "id", "firstname", "lastname", "email" and "reg_date".
Now, let us fill the table with data.
Note: If a column is AUTO_INCREMENT (like the "id" column) or TIMESTAMP
(like the "reg_date" column), it is no need to be specified in
the SQL query; MySQL will automatically add the value.
The following examples add a new record to the "MyGuests" table:
Example (MySQLi Object-oriented)
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error)
die("Connection failed: " . $conn->connect_error);
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', 'john@example.com')";
if ($conn->query($sql) === TRUE)
echo "New record created successfully";
else
echo "Error: " . $sql . "<br>" . $conn->error;
$conn->close();
?>
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Example (MySQLi Procedural)
<?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());
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', 'john@example.com')";
if (mysqli_query($conn, $sql))
echo "New record created 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 the PDO error mode to exception
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', 'john@example.com')";
// use exec() because no results are returned
$conn->exec($sql);
echo "New record created successfully";
catch(PDOException $e)
echo $sql . "<br>" . $e->getMessage();
$conn = null;
?>
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