assertEquals( "http://example.com\nhttp://example.org", sanitize_trackback_urls( "http://example.com{$break}http://example.org" ) ); } function breaks() { return array( array( "\r\n\t " ), array( "\r" ), array( "\n" ), array( "\t" ), array( ' ' ), array( ' ' ), array( "\n " ), array( "\r\n" ), ); } }