Создание превьюшек

                        
<?php

function resize ($filename, $size)

{

$pref = 'mini_';

$img = strtolower(strrchr(basename($filename), "."));

$imgname = basename($filename);

$formats = array('.jpg', '.gif', '.png', '.bmp');

if (in_array($img, $formats))

{

list($width, $height) = getimagesize($filename);

$new_height = $height * $size;

$new_width = $new_height / $width;

$thumb = imagecreatetruecolor($size, $new_width);

switch ($img)

{

case '.jpg': $source = @imagecreatefromjpeg($filename); break;

case '.gif': $source = @imagecreatefromgif($filename); break;

case '.png': $source = @imagecreatefrompng($filename); break;

case '.bmp': $source = @imagecreatefromwbmp($filename); break;

}

imagecopyresized($thumb, $source, 0, 0, 0, 0, $size, $new_width, $width, $height);

switch ($img)

{

case '.jpg': imagejpeg($thumb, $pref.$imgname); break;

case '.gif': imagegif($thumb, $pref.$imgname); break;

case '.png': imagepng($thumb, $pref.$imgname); break;

case '.bmp': imagewbmp($thumb, $pref.$imgname); break;

}

}

else return 'Error';

@imagedestroy($thumb);

@imagedestroy($source);

return $imgname;

}

# - > Пример работы: < - #



echo '<img src="mini_'.resize('http://www.webnotes.com.ua/demo/img-resize/test.jpg',200).'" />';

?>