how to resize images in php

[franknu]

Ok, i want to resize images in php the problem is that i want to resize the images when they display

i wonder what is the best approach

 

this is the code that  i  have to display the pictures

 

<?php
                $image = preg_replace('#^.*/public_html#', '', $row['Picture3']);
            echo '<img src="' . $image . '" width="250" height="250">'; 
			 ?>  

 

basicly, i want the pictures to be resize proporsionaly

 

help thank u

[bobleny]

I generally don't like to do this, but take a look at this guys post.

http://www.phpfreaks.com/forums/index.php/topic,138251.0.html

 

I'm not saying his script works, but he does. It is interesting and it might give you some ideas for your own...

[papaface]

Its quite simple. Just use something like this

<?php
$path = "images/image.jpg";
$size = getimagesize($path);
$height = $size[1] /5;
$width = $size[0] / 5;
?>
<img src="<?php echo $path; ?>" width="<?php echo $width; ?>" height="<?php echo $height; ?>">

 

That will proportionally reduce the size by a 80% I think.

[franknu]

well that is to upload the file, i want to resize the images proporsionaly when i displayed it

[franknu]

what if i want to kinda asign a value like with 250 so what will be proportional well be the height  to 250

[papaface]

I think that is probably possible through simple calculations.

Something like

$height = "250";
$width = $size[0] / 100 * 250;

Not sure if that would work, but you get the idea.

[dj-kenpo]

doing it that way is really heavy on the server cpu if you're getting even moderate hits. your site will slow down fast unless you have a dedicated server.