PHP, manipulating images and thumbnails?

Posted by learner.php on Stack Overflow See other posts from Stack Overflow or by learner.php
Published on 2010-05-24T09:17:40Z Indexed on 2010/05/24 9:21 UTC
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php

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images

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display

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thumbnails

I am using php and mysql. I allow my registered users to upload photos, the photos are store in filesystem format, then I will keep the original/max size of : width: 1600px and heigh: 1200px. In the user profile page, I would like to display the image, it maybe one of the 5 types of thumnails: 500x500, 300x300, 200x200, 100x100 or 50x50. What is the best way to create the thumbnails, here are my current solutions:

I am thinking of create 1 thumbnail, then from that thumbnail, i will resize in [img src="" width="XX"] tag, alternatively, store the different thumbnails size in database, then get and display it
Create 5 thumbnails for each photos? (I am afraid this is a bad way)

Whats the best practices?

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