MWFunction.php

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<?php
class MWFunction {

        protected static function cleanCallback( $callback ) {
                if( is_string( $callback ) ) {
                        if ( strpos( $callback, '::' ) !== false ) {
                                // PHP 5.1 cannot use call_user_func( 'Class::Method' )
                                // It can only handle only call_user_func( array( 'Class', 'Method' ) )
                                $callback = explode( '::', $callback, 2);
                        }
                }

                if( count( $callback ) == 2 && $callback[0] == 'self' || $callback[0] == 'parent' ) {
                        throw new MWException( 'MWFunction cannot call self::method() or parent::method()' );
                }

                // Run autoloader (workaround for call_user_func_array bug: http://bugs.php.net/bug.php?id=51329)
                is_callable( $callback );

                return $callback;
        }

        public static function call( $callback ) {
                $callback = self::cleanCallback( $callback );

                $args = func_get_args();

                return call_user_func_array( 'call_user_func', $args );
        }

        public static function callArray( $callback, $argsarams ) {
                $callback = self::cleanCallback( $callback );
                return call_user_func_array( $callback, $argsarams );
        }

        public static function newObj( $class, $args = array() ) {
                if( !count( $args ) ) {
                        return new $class;
                }

                $ref = new ReflectionClass( $class );
                return $ref->newInstanceArgs( $args );
        }

}