CURLINFO_CONTENT_TYPE
CURL: Get Returned Content Mime Type
例如 :以下代码可以查询出天地图的tile图像类型为jpg
"http://t0.tianditu.com/img_c/wmts/wmts?Service=WMTS&Request=GetTile&Version=1.0.0&Style=Default&Format=tiles&serviceMode=KVP&layer=img&TileMatrixSet=c&TileMatrix=1&TileRow=0&TileCol=0"
// Store the mime-type, if any. (Note: CURL manages the buffer returned by
// this call.)
char* ctbuf = NULL;
if ( curl_easy_getinfo(_curl, CURLINFO_CONTENT_TYPE, &ctbuf) == 0 && ctbuf )
{
sp._resultMimeType = ctbuf;
}
跟踪发现 ctbuf 为 "image/jpeg"
可参考 http://www.satya-weblog.com/2010/07/php-curl-get-returned-content-mime-type.html。 内容相同