Resize an image

[TapeGun007]

 

echo "<img src='test/zimages.jpg'>";
$thumb = ImageCreateTrueColor($finalwidth, $finalheight);
$source = @ImageCreateFromJpeg('test/zimages.jpg');
ImageCopyResized($thumb, $source, 0, 0, 0, 0, $finalwidth, $finalheight, $width, $height);
@ImageJpeg($thumb);

[TapeGun007]

I've read 100 posts on how to resize an image, and when I run this, it just spits out a bunch of garbage text (which when I pasted that in the original post, it deleted most of what I typed).  I checked all the variables, and they are outputting the correct numbers.

 

What am I doing wrong here?

Edited October 8, 2013 by TapeGun007

[Ch0cu3r]

The following line

@ImageJpeg($thumb);

will return the raw binary data for the resized image.

 

You cannot mix raw image data with html.

 

What you need to do is save this php code in a seperate file, say call this zimages.php and make it server the correct content type for jpg images

<?hpp
header('Content-type: image/jpeg'); // <-- added header content type

$thumb = ImageCreateTrueColor($finalwidth, $finalheight);
$source = @ImageCreateFromJpeg('test/zimages.jpg');
ImageCopyResized($thumb, $source, 0, 0, 0, 0, $finalwidth, $finalheight, $width, $height);
@ImageJpeg($thumb);

?>

Then in your html you'll call this script using

echo "<img src='zimages.php'>";

Which should display the resized image of test/zimages.jpg

Edited October 8, 2013 by Ch0cu3r

[Barand]

Don't forget to call

image_destroy($thumb);
image_destroy($source);

after @ImageJpeg($thumb) to release the memory.

[TapeGun007]

Thank you gentlemen for the great input.  However, I noticed something rather weird as it still fails to work.

 

 

<?php
header('Content-type: image/jpeg');
?>
test

 

These are my first four lines of code, and I remarked everything else out.  When I run this, I get a small broken image in the top left corner... and the word "test" never prints to the screen.

[Barand]

Not surprising - that is hardly a valid piece of image creation code. There is no imagecreate() and no imagejpeg()

[TapeGun007]

Ok, thanks... I will go look those up. I don't mind reading and research, just need a point in the right direction.