function cfolderResizeImage($file, $target_with_no_ext, $target_width = 40, $target_height = 40)
{
$source_properties = getimagesize($file);
$image_type = $source_properties[2];
if( $image_type == IMAGETYPE_JPEG )
{
$image_resource_id = imagecreatefromjpeg($file);
$target_layer = fn_resize($image_resource_id,$source_properties[0],$source_properties[1], $target_width, $target_height);
imagejpeg($target_layer, $target_with_no_ext. ".jpg", $target_width, $target_height);
}
elseif( $image_type == IMAGETYPE_GIF )
{
$image_resource_id = imagecreatefromgif($file);
$target_layer = fn_resize($image_resource_id,$source_properties[0],$source_properties[1], $target_width, $target_height);
imagegif($target_layer, $target_with_no_ext. ".gif", $target_width, $target_height);
}
elseif( $image_type == IMAGETYPE_PNG )
{
$image_resource_id = imagecreatefrompng($file);
$target_layer = fn_resize($image_resource_id,$source_properties[0],$source_properties[1], $target_width, $target_height);
imagepng($target_layer, $target_with_no_ext. ".png", $target_width, $target_height);
}
}
function fn_resize($image_resource_id, $width, $height, $target_width, $target_height)
{
$h = $height * $target_width / $width;
if ($h>$target_height)
{
$w = $target_width;
}
else
{
$h = $target_height;
$w = $width * $target_height / $height;
}
$target_layer=imagecreatetruecolor($w,$h);
imagecopyresampled($target_layer,$image_resource_id,0,0,0,0,$w,$h, $width,$height);
return $target_layer;
}
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