On Jan 4, 2008, at 6:18 AM, Jonathan Wagener wrote:
Hi, I would like to know how I can make phpthumb work, I don't really
understand how it works. How do I make it create thumbnails?
I haven't looked at phpthumb... but ImageMagick is sort of the
"industry standard" for thumbnail creation. Flickr uses it, for
example. It uses less system resources than GD and offers some easy
methods to crop/constrain the thumbnails.
It's not actually part of php. It's a standalone command-line
application. I believe there is a php extension for it... but it's
not necessary, you can call command-line tools using the backtick
operator.
The name command-line tool to create thumbnails with ImageMagick is
called "convert" ("mogrify" can be used to resize a file and overwrite
it). Pretty much every *nix based host will have it available. It's
available for windows too -- http://www.imagemagick.org.
It's so simple... you'll love it. Check this out:
<?php
$sourceImagePath = '/path/to/my/image.jpg';
// get string position of last dot (so we know where the file
extension is)
$extPos = strrpos($sourceImagePath, '.');
// create thumbnail path by appending -thumb before the extension
// obviously can change this to work however you like
$thumbImagePath = substr($sourceImagePath, 0, $extPost) . "-thumb" .
substr($sourceImagePath, $extPost);
// use ImageMagick to generate a thumbnail constrained to 100x100
$result = `convert $sourceImagePath -thumbnail 100x100 $thumbImagePath`;
?>
Want to get crazy and resize all jpg's to say 600x600 and create
100x100 thumbnails and name them sequentially?
<?php
$sourceFolder = '/path/to/my/folder';
$result = `convert '$sourceFolder/*.jpg' -thumbnail 600x600 %03d-
resized.jpg`;
$result = `convert '$sourceFolder/*-resized.jpg' -thumbnail 100x100
%03d-thumb.jpg`;
?>
There's TONS more options for ImageMagick: http://www.imagemagick.org/Usage
Good luck,
Rob
_______________________________________________
New York PHP Community Talk Mailing List
http://lists.nyphp.org/mailman/listinfo/talk
NYPHPCon 2006 Presentations Online
http://www.nyphpcon.com
Show Your Participation in New York PHP
http://www.nyphp.org/show_participation.php
