Complete Notes on PHP

The mysqli_connect() function is used to create a connection in PHP. resource mysqli_connect (server, username, password) To create a connection in PHP, typically you would use the PDO (PHP Data Objects) or MySQLi extension. Here’s a basic example of how to create a database connection using PDO: phpCopy code <?php $servername = “localhost”; $username = … Read more

There are two methods to connect MySQL database with PHP. Procedural and object-oriented style. To connect MySQL database with PHP, you can use the MySQLi (MySQL Improved) or PDO (PHP Data Objects) extension. Here’s how you can connect using both methods: Using MySQLi extension: phpCopy code <?php $servername = “localhost”; $username = “username”; $password = … Read more

The mail() function is used to send email in PHP. bool mail($to,$subject,$message,$header); To send an email in PHP, you can use the mail() function. Here’s a basic example: phpCopy code $to = “recipient@example.com”; $subject = “Test email”; $message = “This is a test email sent from PHP.”; $headers = “From: sender@example.com\r\n”; $headers .= “Reply-To: sender@example.com\r\n”; … Read more

The readfile() function is used to download the file in PHP. int readfile ( string $filename ) To download a file in PHP, you typically follow these steps: Specify the file to be downloaded: You need to know the path or URL of the file you want to download. Set appropriate headers: Use PHP’s header … Read more

The move_uploaded_file() function is used to upload file in PHP. bool move_uploaded_file ( string $filename , string $destination ) To upload a file in PHP, you can follow these steps: Create an HTML form with an input field of type “file” to allow users to select the file they want to upload. Use the $_FILES … Read more