<?php // directory that contains the images$image_path = "/images/";// array that contains the images. The position in the array maps to the day of the week. 1 = monday, 2 = tuesday, etc.$images = ["monday.jpg","tuesday.jpg","wednesday.jpg","thursday.jpg","friday.jpg","saturday.jpg","sunday.jpg"];// Output the image:print '<img src="' . $image_path . $images[date('N')+1] . '" alt="description of picture" />';// Note: date('N') function requires PHP 5.1.0 or higher (as documented in php.net/date)?>