获得图片的二进制,怎么进行图片缩略?
mongodb 数据库 图片 二进制 存储
我用的是mongodb数据库,以二进制的形式存储图片,问题是获取到二进制,怎么对它进行缩略操作呢?回复讨论(解决方案)
$im = imagecreatefromstring('获得的图片数据');
接下来就没有特别的地方了
imagecreatefromstring()真的可以识别二进制吗?我试试,先谢谢了!
$im = imagecreatefromstring('获得的图片数据');
接下来就没有特别的地方了 那怎么把图片转成二进制形式呢?
这就有点奇怪了,你不是“以二进制的形式存储图片”的吗?怎么还要问呢?
这就有点奇怪了,你不是“以二进制的形式存储图片”的吗?怎么还要问呢? 这是以前的大神做的,看不懂啊。。。我要做的是把二进制图片缩小,再转为二进制,不破坏原来的结构。。。能讲讲怎么实现的吗?谢谢
... 图片操作
imagegif($im, '文件名');
$s = file_get_contents('文件名');
或
... 图片操作
ob_start();
imagegif($im);
$s = ob_get_clean();

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