php如何提取照片的相关参数?

kacacn

请问一下那位前辈!用php提取照片拍照时的光圈,焦距等参数,是否在编译时要加什么参数?还是用其他什么方法啊?

geel

查看手册中exif段

kacacn

简介
With the exif extension you are able to work with image meta data. For example, you may use exif functions to read meta data of pictures taken from digital cameras by working with information stored in the headers of the JPEG and TIFF images.

需求
Your PHP must be compiled in with --enable-exif. PHP does not require any additional library for the exif module. Windows users must also have the mbstring extension enabled.

安装
To enable exif-support configure PHP with --enable-exif

Windows users must enable both the php_mbstring.dll and php_exif.dll DLL's in php.ini. The php_mbstring.dll DLL must be loaded before the php_exif.dll DLL so adjust your php.ini accordingly.

看来是要重新编译php了,加--enable-exif 了,谢了!