从JFIF数据创建文件

时间:2013-11-05 14:48:00

标签: php ldap jpeg

我有一个我们的LDAP数据库的转储,我正在尝试使用PHP从中提取所有图像。图像似乎以JFIF格式存储(至少根据http://tools.ietf.org/html/rfc2798#page-5)。但是,我无法弄清楚如何从中创建JPEG文件;我尝试file_put_contents将name.jpeg中的所有内容,imagecreatefromstring的输出转储到imagejpeg以及其中的一些变体。但是,要么我没有正确使用它们,要么我只是一共尝试这个错误。

所以问题是:

以下是该领域的一小部分:

jpegPhoto:: /9j/4AAQSkZJRgABAQAAAQABAAD//gA+Q1JFQVRPUjogZ2QtanBlZyB2Mi4wICh1c2lu
 ZyBJSkcgSlBFRyB2NjIpLCBkZWZhdWx0IHF1YWxpdHkK/9sAQwAIBgYHBgUIBwcHCQkICgwUDQwLCww
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 QBkAwEiAAIRAQMRAf/EAB8AAAEFAQEBAQEBAAAAAAAAAAABAgMEBQYHCAkKC//EALUQAAIBAwMCBAMF
 BQQEAAABfQECAwAEEQUSITFBBhNRYQcicRQygZGhCCNCscEVUtHwJDNicoIJChYXGBkaJSYnKCkqNDU
 2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6g4SFhoeIiYqSk5SVlpeYmZqio6Slpq
 eoqaqys7S1tre4ubrCw8TFxsfIycrS09TV1tfY2drh4uPk5ebn6Onq8fLz9PX29/j5+v/EAB8BAAMBA
 QEBAQEBAQEAAAAAAAABAgMEBQYHCAkKC//EALURAAIBAgQEAwQHBQQEAAECdwABAgMRBAUhMQYSQVEH
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 aY2RlZmdoaWpzdHV2d3h5eoKDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8
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 k3E4AIU7fy61UuYcnzI2JU8hT1FTC6epmTwXsqbt7Ej07fX9KlzJhZBuVsgqehB7YrORlTaSoYA8qel
 aJnjkhQlZELHK7W3ACiStshnTaP4nlN8ftigI6hXeLIYnsTnOfwr0fw1IpjZEkVo3fcnGHbBBPsPujO
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1 个答案:

答案 0 :(得分:1)

数据是base64编码的,首先对其进行解码,然后将其保存到文件中。见http://www.php.net/manual/en/function.base64-decode.php