Warning: imagejpeg() [function.imagejpeg]: Unable to open 'uploads/570c4c99f1b14.jpg

[wsbnet]

chmod 777
Warning: imagejpeg() [function.imagejpeg]: Unable to open 'uploads/570c4c99f1b14.jpg

[wsbnet]

forget mkdir
$webDir = 'uploads/'.$dir.'/'.date("Ymd").'/';
file_exists($webDir) || (mkdir($webDir,0777,true) && chmod($webDir,0777));