缩略图在php中生成图像问题

Question

我写了下面的代码来生成php中的图像缩略图，它对于某些图像工作正常但是在高分辨率/高尺寸图像的情况下它显示

此页面无效

问题。这里imagecreatefromjpeg()不工作。这是什么解决方案请帮帮我..

function make_accused_thumb($src, $dest, $desired_width) {

/* read the source image */
//ini_set('gd.jpeg_ignore_warning', 1);
//echo $src;exit;
//echo $src;exit;
$source_image = @imagecreatefromjpeg($src);
echo $src;exit;
if (!$source_image)
{
  $source_image= @imagecreatefromstring(file_get_contents($src));
}

$width = @imagesx($source_image);
$height = @imagesy($source_image);

/* find the "desired height" of this thumbnail, relative to the desired width  */
$desired_height = @floor($height * ($desired_width / $width));

/* create a new, "virtual" image */
$virtual_image = @imagecreatetruecolor($desired_width, $desired_height);

/* copy source image at a resized size */
@imageCopyResized($virtual_image, $source_image, 0, 0, 0, 0, $desired_width, $desired_height, $width, $height);

/* create the physical thumbnail image to its destination */
@header('Content-Type: image/jpeg');
@imagejpeg($virtual_image, $dest);

}