Solved

Image manipulation and PHP

Posted on 2009-04-11
7
278 Views
Last Modified: 2012-05-06
I have 2 images:

image1.jpg (650 x 300 px)
image2.jpg (10 x 10 px)

Basically I want PHP to place image2.jpg over the top of image1.jpg, in a certain place (e.g. 100w, 100h), then save the whole thing as a JPEG.

Any ideas how I can about doing this?

Many thanks.
0
Comment
Question by:DReade83
  • 4
  • 3
7 Comments
 
LVL 109

Accepted Solution

by:
Ray Paseur earned 500 total points
ID: 24122620
http://us2.php.net/manual/en/function.imagecopymerge.php should get you started.  Can you please post the code you have so far?  Thanks, ~Ray
0
 

Author Comment

by:DReade83
ID: 24122626
I haven't any code just yet. Is it possible to add some text over the top of the second image, and then save the whole thing as one image?
0
 
LVL 109

Assisted Solution

by:Ray Paseur
Ray Paseur earned 500 total points
ID: 24122658
Yes, you can stack text or other images on top of a background image.  That function above does it for image stacking.  The imagestring() or imagestringup() functions can do it for text.  Then you can create the file with imagejpeg() and you're done.  There is a lot to be found in the GD functions for PHP.

Have a quick read of the functions on this page, and you will find almost everything you could desire!
http://us2.php.net/manual/en/ref.image.php

HTH, ~Ray
0
Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 

Author Closing Comment

by:DReade83
ID: 31569202
Thanks Ray! :-)
0
 
LVL 109

Expert Comment

by:Ray Paseur
ID: 24122685
Thanks for the points.  Here is a little code snippet that shows what I do to create a little image of a "captcha" number string.  If you look up the functions in the top part, you will get the gist of it quickly.

Cheers, ~Ray
<?php // CAPTCHA_NUMBER.PHP GENERATES A PICTURE OF A NUMBER
 $data	= base64_decode($_GET['dt']);
 $im	= imagecreate(46,13);
 $bg	= imagecolorallocate($im, 255,255,255);
 $gray	= imagecolorallocate($im, 188,188,188);
 $text	= imagecolorallocate($im, 178,34,34);  // firebrick
 imagestring($im,5,4,0,$data,$text);
 imageline($im,4,12,38,0,$gray);
 imagepng($im);
 imagedestroy($im);
?>
 
 
 
 
 
 
<html> <!-- GOES IN THE FORM SCRIPT -->
Type
<img style="display:inline;" src=captcha_number.php?dt=<?php $x = mt_rand(1000,10000); echo base64_encode($x);?> />
here:
<input type=hidden name='_newMd5' value="<?=md5($x)?>" />
&nbsp;
<input name="_newCode" type="text" maxlength="64" size="6" autocomplete="off" />
 
 
 
 
 
 
 
<?php // GOES IN THE ACTION SCRIPT
$newCode	= $_POST["_newCode"];
$newMd5		= $_POST["_newMd5"];
$newCode	= md5($newCode);
if ($newCode != $newMd5)
{
	die('Security code number did not match');
}

Open in new window

0
 

Author Comment

by:DReade83
ID: 24122694
Nice! I'll have a go! Thanks mate!
0
 
LVL 109

Expert Comment

by:Ray Paseur
ID: 24122696
'Welcome!
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction HTML checkboxes provide the perfect way for a web developer to receive client input when the client's options might be none, one or many.  But the PHP code for processing the checkboxes can be confusing at first.  What if a checkbox is…
Nothing in an HTTP request can be trusted, including HTTP headers and form data.  A form token is a tool that can be used to guard against request forgeries (CSRF).  This article shows an improved approach to form tokens, making it more difficult to…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.

837 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question