php how to delete code example

Example 1: php remove file

if(file_exists($file)) {
	unlink($file);
}

Example 2: php delete

<?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 delete a 
	record

	$sql 
	= "DELETE FROM MyGuests WHERE id=3";

	
if (mysqli_query($conn, $sql)) {
    echo "Record deleted 
	successfully";
} else {
    echo "Error 
	deleting record: " . mysqli_error($conn);
}

mysqli_close($conn);

?>

Example 3: php delete

<?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 delete a record

	$sql 
	= "DELETE FROM MyGuests WHERE id=3";

	
if ($conn->query($sql) === TRUE) {
    echo "Record 
	deleted successfully";
} else {
    echo 
	"Error deleting record: " . $conn->error;
}

$conn->close();

?>