Image resizing with PHP


<?php

function imageResize($width, $height, $target) {

//takes the larger size of the width and height and applies the
formula accordingly…this is so this script will work
dynamically with any size image

if ($width > $height) {
$percentage = ($target / $width);
} else {
$percentage = ($target / $height);
}

//gets the new value and applies the percentage, then rounds the value
$width = round($width * $percentage);
$height = round($height * $percentage);

//returns the new sizes in html image tag format…this is so you
can plug this function inside an image tag and just get the

return "width=\"$width\" height=\"$height\"";

}

?>

The Function in Action

<?php

//get the image size of the picture and load it into an array
$mysock = getimagesize("images/sock001.jpg");

?>

<!-using a standard html image tag, where you would have the
width and height, insert your new imageResize() function with
the correct attributes –>

<img src="images/sock001.jpg" <?php imageResize($mysock[0],
$mysock[1], 150); ?>>

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