随机选择一个文件

Question

Im writing a script to send a random image by email to myself daily, what i want to do is set a variable $image to equal a 'random' image in a directory called /images.

It dosnt matter which the image is just (ie. it dosnt need to be truly random it could be done on date, image size, alphabetical name ect.)

The images are a mixture of .jpg, .jpeg, .png, .gif.

Whats the best way to assign a random image to the $image vairable ?

Answer 1

 $images = array('image1.png', 'image2.png', 'image3.jpg');

 $selectedimage = rand(0,count($images));

 $image = $images[$selectedimage];