I have a class to read and output the image content, if $width is set, it will resize the image, and then output it.

If I call the function like this $image->readImage('123.jpg'); , it can output the image file correctly, but when I call $image->readImage('123.jpg'); , it just display a black image with resized width & height.

And I tried to replace the code from

@imagejpeg($thumb, null, 100);

to

@imagejpeg($image, null, 100);

will works~

-

protected function readImage($fileName, $width = 0) 

{ if ($width <= 0) { return @file_get_contents($this->destination . '/' . $fileName); } else { $imageSize = @getimagesize($this->destination . '/' . $fileName); $actualWidth = $imageSize[0]; $actualHeigth = $imageSize[1];

if ($actualWidth <= $width) { return @file_get_contents($this->destination . '/' . $fileName); } $height = (100 / ($actualWidth / $width)) * .01; $height = @round($actualHeigth * $height);

$image = @imagecreatefromjpeg($this->destination . '/' . $fileName); $thumb = @imagecreatetruecolor($width, $height); @imagecopyresampled($thumb, $image, 0, 0, 0, 0, $width, $height, $actualWidth, $actualHeight);

ob_start(); @imagejpeg($thumb, null, 100); $bits = ob_get_contents(); ob_end_clean();

return $bits; } }

Any experts know what happened and help me to solve it ?

Thanks.