PHP & MySQL, Tutorials

Simpler filesize calculations

When working with file sizes in PHP you work with bytes, which often is not what you want. In most cases I prefer to work with megabytes rather the bytes, I came across a snippet on Stackoverflow that solved this issue in a great way.

First, define the different sizes:

define('KB', 1024);
define('MB', 1048576);
define('GB', 1073741824);
define('TB', 1099511627776);

Then you can use them in if statements calculations ie to only allow images less than 20MB:

if ($size < 20*MB) {

Super handy!

David Carr

David Carr

For the past 12 years, I’ve been developing applications for the web using mostly PHP. I do this for a living and love what I do as every day there is something new and exciting to learn.

In my spare time, the web development community is a big part of my life. Whether managing online programming groups and blogs or attending a conference, I find keeping involved helps me stay up to date. This is also my chance to give back to the community that helped me get started, a place I am proud to be apart of.

Besides programming I love spending time with friends and family and can often be found together going out catching the latest movie, staying in playing games on the sofa or planning a trip to someplace I’ve never been before.