Download image from server (php)

Hello) help me please

var previewImg = Ti.UI.createImageView({
                image: 'http://mydomain.com/account/getpreviewimgone',
                width: '15%',
                left: '1.5%',
                defaultImage: '/previewImgEmpty.png'
            });
 
 
///not working Php:
$content = file_get_contents('web/messagessImgs/9122857713/1/tixhr-691020399.jpeg');
        return $cont;