title: Image resize with codeigniter
body: <p>I've been searching for some tutorial or something that helps me solve this issue, I'm developing a website where users place ads offering rooms and when they place an ad they have the possibility to add some photos. I want to resize and decrease some quality of the photos  so they won't become to big. The problem is sometimes users insert weird resolutions, so I want to do something like the css background-size: cover property does. Resize photo so the smaller side fit and crop the rest.</p>