Working with Databases in PHP

Working with Databases in PHP

Databases in PHP are used to store data and can be used to store user information, website content, and other types of data. PHP provides a set of functions for working with databases, such as connecting to a database, performing queries, and creating tables.

For example, a simple function that connects to a database:

function connectToDB($host, $user, $pass, $dbname) {
    $conn = mysqli_connect($host, $user, $pass, $dbname);
    return $conn;
}

In this example, the function connectToDB() is declared and takes four parameters, $host, $user, $pass, and $dbname. The function uses the mysqli_connect() function to connect to a database, and then returns the connection. The output of this function when called with the parameters “localhost”, “root”, “password”, and “my_db” would be a database connection object.

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