Assigning a unique identification to each project in a portfolio (PHP?)

I have a specific problem regarding my website that I built with HTML, CSS, Masonry, and a little bit of PHP.

On my homepage, You can see that I am using JQuery Masonry to display my work. Every time I add a project, the layout is reordered quite a bit, as expected. It is very hard to predict where certain projects will land in the开发者_C百科 grid (since the height varies from project to project).

After you click an image, you are taken to the project page, with a project navigation at the top (Previous Project / Next Project). There is no fancy PHP or CMS going on here. I manually update the prev and next project links whenever I upload a new project. This usually means updating links on every project page (18 pages). I do this because when masonry rearranges the project grid on the homepage (after adding a new project), the prev and next project links will be out of date and will not be correct. For example, after uploading a new project, when I click "next project" it will take me to the incorrect project because the grid on the homepage is different than it was before.

I order the images from left to right, starting on the first row.

I would like to have a PHP include for the project navigation, but I do not know PHP very well. The code would achieve something like, "after clicking on the next project link go to x project"

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Ok here is the most basic PHP pagination tutorial I could find. It doesn't even use a database, just an array:

Array Pagination in PHP

Although I suspect you would be helping yourself a great deal if you sat down for a day and learnt the basics of PHP scripting. It's quite a simple first language:

PHP - A simple tutorial