Cron Job - 如何在特定日期之间执行两次脚本？

Question

I am new to php and database stuff, but have looked around and cannot find a solution.

What I'm trying to accomplish:

I have a slideshow of images. The images come from Flickr's API, stored in a database table, then the database data is generated into a JSON link.

My question is, is there a way to execute the php script that calls the flickr API everytime the slideshow circle through all the images in the JSON link? I could specify every 1 minutes, but that may be too long if there are only a few images in the slideshow.

If you can't do that,

is there a way to execute the script every 1 minute on only fridays from 9pm EST to 3am EST?

Answer 1

The answer is yes there is a way but how all depends on the slideshow you are using. If you didn't build it i would hunt for a function that's probably running at the end of the slideshow to trigger it to loop to the beginning. When you find that function you can alter it to run the script that connects to the API to get new images.

You might have to delay the loop in the slideshow long enough for the new images to load.