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This function allows you to input your image , the percentage you wish

This function allows you to input your image , the percentage you wish
the width to be displayed at and the percentage you wish the height to be displayed at


imageresize.php code 

<?php 
function ResizeImage($image ,$width ,$height) 
{ 
//image resizer by myscripting 
//get the size of the original 
$size = GetImageSize($image); 
//divide the width / height percentage by 100 
$new_width = 100 / $width; 
$new_height = 100 / $height; 
//store the resized dimensions in a variable 
$sizeh = $size[1]/ $new_height; 
$sizew= $size[0]/ $new_width; 
//display the new resized image 
$new_image = "<img src = \"$image\" height=\"$sizeh\" width =\"$sizew\">"; 
echo $new_image; 
} 
?> 

Here is how we call this script with some examples . 

<?php 
require("imageresize.php"); 
//this reduces the image 
ResizeImage("1.gif",50,50); 
echo "<br>"; 
//we can increase an image as well 
ResizeImage("1.gif",150,150); 
?>