BOM头是UTF-8来告诉编辑器:我是UTF8编码。它的编码是\xEF\xBB\xBF 但是PHP在设计之初并没有考虑到BOM头的问题,所以在编解码的时候很容易出现问题 $result = trim($result, "\xEF\xBB\xBF"); print_r(json_decode($result, true)); exit; 还有一种比较矬: 1 2 3 4 5 $result = @iconv("UTF-8", "GBK//IGNORE", $result); $result = @iconv("GBK", "UTF-8//IGNORE", $result); print_r(json_decode($result, true)); exit;