PHP Create MySQL Tables

A database table has its own unique name and consists of columns and rows.

Create a MySQL Table Using MySQL and MySQLi

The CREATE TABLE statement is used to create a database in MySQL.

We will create a table named "MyGuests", with five columns: "id", "firstname", "lastname", "email" and "reg_date":

CREATE TABLE MyGuests (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
email VARCHAR(50),
reg_date TIMESTAMP
)


Notes on the table above:

The data type specifies what type of data the column can hold. For a complete reference of all the available data types, go to our Data Types reference.

After the data type, you can specify other optional attributes for each column:

  • NOT NULL - Each row must contain a value for that column, null values are not allowed
  • DEFAULT value - Set a default value that is added when no other value is passed
  • UNSIGNED - Used for number types, limits the stored data to positive numbers and zero
  • AUTO INCREMENT - MySQL automatically increases the value of the field by 1 each time a new record is added
  • PRIMARY KEY - Used to uniquely identify the rows in a table. The column with PRIMARY KEY setting is often an ID number, and is often used with AUTO_INCREMENT

    • Each table should have a primary key column (in this case: the "id" column). Its value must be unique for each record in the table.

    The following examples shows how to create the table in PHP:

    MySQLi Object-oriented

    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 to create table
     $sql = "CREATE TABLE MyGuests (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    firstname VARCHAR(30) NOT NULL,
    lastname VARCHAR(30) NOT NULL,
    email VARCHAR(50),
    reg_date TIMESTAMP
    )"    ;

    if ($conn->query($sql) === TRUE) {
        echo "Table MyGuests created successfully";
    } else {
        echo "Error creating table: " . $conn->error;
    }

    $conn->close();
    ?>


    MySQLi Procedural

    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 to create table
     $sql = "CREATE TABLE MyGuests (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    firstname VARCHAR(30) NOT NULL,
    lastname VARCHAR(30) NOT NULL,
    email VARCHAR(50),
    reg_date TIMESTAMP
    )"    ;

    if (mysqli_query($conn, $sql)) {
        echo "Table MyGuests created successfully";
    } else {
        echo "Error creating table: " . mysqli_error($conn);
    }

    mysqli_close($conn);
    ?>

    MySQL

    Example(MySQL)

    <?php
    $servername = "localhost";
    $username = "username";
    $password = "password";
    $dbname = "myDB";

    // Create connection
     $conn = mysql_connect($servername, $username, $password);
    // Check connection
     if (!$conn) {
        die("Connection failed: " . mysql_error());
    }
    $db=mysql_select_db($dbname ,$con);

    // sql to create table
     $sql = "CREATE TABLE MyGuests (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    firstname VARCHAR(30) NOT NULL,
    lastname VARCHAR(30) NOT NULL,
    email VARCHAR(50),
    reg_date TIMESTAMP
    )"    ;

    if (mysql_query($sql)) {
        echo "Table MyGuests created successfully";
    } else {
        echo "Error creating table: " . mysql_error();
    }

    mysql_close($conn);
    ?>





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