how to remove php code example

Example 1: uninstall php ubuntu 18.04

$ sudo apt-get purge php7.*
$ sudo apt-get autoclean
$ sudo apt-get autoremove

Example 2: how to uninstall php

sudo apt-get remove –purge php* sudo apt-get purge php*

Example 3: 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);

?>