php.ini

;for windows
extension_dir = "ext"
extension=php_pdo_sqlite.dll
extension=php_sqlite3.dll

;for linux
extension=php_pdo_sqlite.so
extension=php_sqlite3.so

router.php

<?PHP
//bases on http://silex.sensiolabs.org/doc/web_servers.html#php-5-4
$filename = __DIR__.preg_replace('#(\?.*)$#', '', $_SERVER['REQUEST_URI']);
if (php_sapi_name() === 'cli-server' && is_file($filename)) {
    return false;
}else {
	$path=preg_replace('#(\?.*)$#', '', $_SERVER['REQUEST_URI']);
	if(substr($path,strlen($path) - 1, 1) !== '/' ){
		if(substr($path,strlen($path) - 4, 4) !== '.php'){
			header( 'Location: '.$path . '/index.php' );
		}
		else
			return false;
	}else{	
     include_once $_SERVER['DOCUMENT_ROOT'].$_SERVER['SCRIPT_NAME'];
	 }
}
?>

sqlite-wp-config.php

<?php
//fork https://github.com/szepeviktor/wordpress-plugin-construction/blob/master/sqlite-wp-config.php
/*
    wp-config file for SQLite Integration
    Convert MySQL - mysql2sqlite.sh: https://gist.github.com/esperlu/943776
    Administer: https://bitbucket.org/phpliteadmin/public
    Installation
    wget -q -O- https://wordpress.org/latest.tar.gz | tar -xz
    cd wordpress/wp-content/plugins/
    wget https://downloads.wordpress.org/plugin/sqlite-integration.zip
    unzip sqlite-integration.zip
    cp sqlite-integration/db.php ../
*/
define( 'USE_MYSQL', false );
define( 'DB_NAME', 'sqlite' );
define( 'DB_CHARSET', 'utf8' );
//define( 'USE_MYSQL', true );
//define( 'DB_FILE', '.ht.sqlite' );
//define( 'DB_DIR', '/ABS/PATH/wp-content/database/' );
// Dummy data for plugins
define( 'DB_USER', 'sqlite' );
define( 'DB_PASSWORD', 'sqlite' );
define( 'DB_HOST', 'sqlite' );
define( 'DB_COLLATE', '' );
$table_prefix = 'sql3_';
/*
    Salts
    Alt + U (mcedit/Paste output of...)
    wget -qO- https://api.wordpress.org/secret-key/1.1/salt/
*/
/*
    Webserver
    apt-get install -y php5-cli
    php -S
*/
/* That's all, stop editing! Happy blogging. */
/** Absolute path to the WordPress directory. */
if ( !defined('ABSPATH') )
    define('ABSPATH', dirname(__FILE__) . '/');
/** Sets up WordPress vars and included files. */
require_once(ABSPATH . 'wp-settings.php');

wp-config.php

/**#@+
 * Authentication Unique Keys and Salts.
 * get it from here,https://api.wordpress.org/secret-key/1.1/salt
 * ....
 */
define('AUTH_KEY',         'put your unique phrase here');
define('SECURE_AUTH_KEY',  'put your unique phrase here');
define('LOGGED_IN_KEY',    'put your unique phrase here');
define('NONCE_KEY',        'put your unique phrase here');
define('AUTH_SALT',        'put your unique phrase here');
define('SECURE_AUTH_SALT', 'put your unique phrase here');
define('LOGGED_IN_SALT',   'put your unique phrase here');
define('NONCE_SALT',       'put your unique phrase here');
/**
 * WordPress Database Table prefix.
 * ...
 */
$table_prefix  = 'wp_';