Config.class.php

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<?php

class Config{

        private static $env;

        public static function load($file){

                $default = array(
                        'router'=>array(
                                'unsecure' => array(),
                                'secure' => array()
                        ),
                        'database'=>array()
                );

                $env = spyc_load_file($file);

                if( !is_array( $env ) )
                        throw new Exception("File \"{$file}\" not found",1001);

                $imports = array( );

                if( isset( $env['imports'] ) && is_array( $env['imports'] ) ){
                        $imports = $env['imports'];
                        unset( $env['imports'] );
                }

                foreach( $imports as $name => $rsc ){
                        $env = array_merge_recursive(
                                $env,
                                spyc_load_file(
                                        (
                                                dirname( $rsc["resource"] ) == '.' || strpos( $rsc["resource"], '/' ) != 0 ?
                                                        dirname( $file ) . '/'
                                                :
                                                        ''
                                        )
                                        .$rsc["resource"]
                                )
                        );
                }

                self::$env = array_merge_recursive( 
                        $env,
                        $default
                );
        }

        public static function get($uri){
                if( $uri=='' )
                        return '';

                $uri = explode( '/', trim( $uri, '/' ) );

                $rt= self::$env;

                foreach($uri as $lvl)
                        if( isset($rt[$lvl]) )
                                $rt = $rt[$lvl];
                        else{
                                $rt = '';
                                break;
                        }
                return $rt;
        }

}