gernerate htpasswd and htaccess

protect_folder.php

<?php
// this script generates a .htaccess and .htpasswd files in a folder (if they don't already exist)
// just upload protect_folder.php and open it the browser.

$user = 'myuser';
$password = 'mypasswort';

$encrypted_password = crypt( $password, base64_encode( $password ) );

$folder_path = dirname( __FILE__ );

$htaccess_path = $folder_path . DIRECTORY_SEPARATOR . '.htaccess';
$htpasswd_path = $folder_path . DIRECTORY_SEPARATOR . '.htpasswd';

$access_text_parts = [
	'AuthType Basic',
	'AuthName "Password Protection"',
	'AuthUserFile ' . $folder_path . DIRECTORY_SEPARATOR . '.htpasswd',
	'Require valid-user'
];

$access_text = implode( "\n", $access_text_parts );

$pwd_text = $user . ':' . $encrypted_password;

if ( ! file_exists( $htaccess_path ) ) {
	createFile( $htaccess_path, $access_text );
} else {
	if ( strpos( file_get_contents( $htaccess_path ), 'AuthType Basic' ) === false ) {
		appendToFile( $htaccess_path, "\n" . $access_text );
	}
}

if ( ! file_exists( $htpasswd_path ) ) {
	createFile( $htpasswd_path, $pwd_text );
} else {
	if ( strpos( file_get_contents( $htpasswd_path ), $user . ':' ) == false ) {
		appendToFile( $htpasswd_path, "\n" . $pwd_text );
	}
}

function createFile ( $file_path, $content ) {
	$file = fopen( $file_path,'wb');
	fwrite( $file, $content );
	fclose( $fp );
}

function appendToFile ( $file_path, $content ) {
	$file = fopen( $file_path,'a+');
	fwrite( $file, $content );
	fclose( $fp );
}