... PEAR::XML_SerializerXML has never been so easy Introduction to PHP-GTKIntroduction to PHP-GTKGetting started with desktop applications in PHPAn Introduction to SQLiteAn Introduction to SQLiteSQL for the massesObject ... /* Create a button */ 30 $button = &new GtkButton(‘Ok’); 3132 /* Connect the click_button() function to the clicked signal */ 33 $button->connect(‘clicked’, ‘click_button’); 3435 ... $$PPrrooppVVaalluuee to an error message(“$PropName isn’t defined”), but we could also set it to FALSE, to zero, to a blank string, or to whatever makessense.Finally, we return TRUE from ____ggeett(()). This...