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Additional PHP Material example from a Well House Consultants training course
More on Additional PHP Material
More on Additional PHP Material
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Source Code
<?php
header("image/jpeg");
$image = imagecreatefromjpeg($_GET[img]);
$result = imagecreate(100,75);
$fg = imagecolorallocate($result,255,255,255);
imagefilledrectangle($result,0,0,100,75,$fg);
$w = imagesx($image);
$h = imagesy($image);
$wscale = 100 / $w;
$hscale = 75 / $h;
// Following reduces image size to maintain aspect ratio
// Switch < to > to provide cropped thumbnails
// Just use simple constants to let aspect ratio change and distort images
if ($wscale < $hscale) {
$xresult = 100;
$yresult = $h * $wscale;
$xoffset = 0;
$yoffset = (75 - $yresult)/2;
} else {
$yresult = 75;
$xresult = $w * $hscale;
$xoffset = (100 - $xresult) / 2;
$yoffset = 0;
}
ImageCopyresized($result,$image,$xoffset,$yoffset,0,0,$xresult,$yresult,$w,$h);
imagejpeg ($result);
?>
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Other Examples
This example comes from our "Additional PHP Material" training module. You'll find a description of the topic and some
other closely related examples on the "Additional PHP Material" module index page.
Learn about this subject
This module and example are covered on our public PHP Programming course. If you have a group of
three or more trainees who need to learn the subject, we can also arrange a
private or on site course for you.
Full description of the source code
You can learn more about this example on the training courses listed on this page,
on which you'll be given a full set of training notes.
Many other training modules are available for download (for limited use) from our download centre or under an Open Training Notes License from our sister site http://www.training-notes.co.uk.
Many other training modules are available for download (for limited use) from our download centre or under an Open Training Notes License from our sister site http://www.training-notes.co.uk.
Other resources
• Our Solutions centre provides a number of longer technical articles.
• Our Opentalk forum provides a question and answer centre.
• The Horse's mouth provides a daily tip or thought.
• Further resources are available via the resources centre.
• All of these resources can be searched through through our search engine
• Our Opentalk forum provides a question and answer centre.
• The Horse's mouth provides a daily tip or thought.
• Further resources are available via the resources centre.
• All of these resources can be searched through through our search engine
Purpose of this website
This is a sample program, class demonstration or answer from a
training course. It's main purpose
is to provide an after-course service to customers who have attended our
public private or
on site courses, but the examples are made
generally available under conditions described below.
Web site author
Conditions of use
Past attendees on our training courses are welcome to use individual
examples in the course of their programming, but must check
the examples they use to ensure that they are suitable for their
job. Remember that some of our examples show you how not to do
things - check in your notes. Well House Consultants take no responsibility
for the suitability of these example programs to customer's needs.
This program is copyright Well House Consultants Ltd. You are forbidden from using it for running your own training courses without our prior written permission. See our page on courseware provision for more details.
This program is copyright Well House Consultants Ltd. You are forbidden from using it for running your own training courses without our prior written permission. See our page on courseware provision for more details.
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