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mysqli_connect() in PHP

The mysqli_connect() is a tool in PHP that establishes a connection with MySQL database. It is an important command that connects PHP and MySQL database.

PHP and MySQL's relation gets established due to mysqli_connect().

• The mysqli_connect() function is used to establish a connection/relations of a MySQL database and PHP. This function returns a connection object on success, or false on failure.

• It allows PHP to interact with MySQL to perform operations like querying, selecting, dropping, inserting, updating, and deleting data.

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Coding to Establish Relation of PHP and MySQL

<?php
mysqli_connect("localhost", "root", "");
if (mysqli_connect_error()) {
    echo "Connection Error.";
} else {
    echo "Database Connection Succeed.";
}
?>

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How It Works

1. The mysqli_connect() function attempts to connect PHP with the MySQL database using server, username, and password.

2. If the connection fails, mysqli_connect_error() displays an error message.

3. If successful, a confirmation message is shown, and PHP can perform database operations such as querying, inserting, updating, or deleting data.

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Conclusion

The mysqli_connect() function is a fundamental command in PHP for establishing a reliable connection to MySQL databases. It serves as the bridge between PHP scripts and MySQL, enabling dynamic web applications to store, retrieve, and manage data efficiently. Understanding this function is essential for any developer working with PHP and MySQL.

Output of this coding is :

Database Conncetion Sucessfully.