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894天前/********************** |
*@filename - path to the image |
*@tmpname - temporary path to thumbnail |
*@xmax - max width |
*@ymax - max height |
*/ |
function resize_image($filename, $tmpname, $xmax, $ymax) |
{ |
$ext = explode(".", $filename); |
$ext = $ext[count($ext)-1]; |
|
if($ext == "jpg" || $ext == "jpeg") |
$im = imagecreatefromjpeg($tmpname); |
elseif($ext == "png") |
$im = imagecreatefrompng($tmpname); |
elseif($ext == "gif") |
$im = imagecreatefromgif($tmpname); |
|
$x = imagesx($im); |
$y = imagesy($im); |
|
if($x <= $xmax && $y <= $ymax) |
return $im; |
|
if($x >= $y) { |
$newx = $xmax; |
$newy = $newx * $y / $x; |
} |
else { |
$newy = $ymax; |
$newx = $x / $y * $newy; |
} |
|
$im2 = imagecreatetruecolor($newx, $newy); |
imagecopyresized($im2, $im, 0, 0, 0, 0, floor($newx), floor($newy), $x, $y); |
return $im2; |
} |
