本文实例为大家分享了php强制下载文件函数，供大家参考，具体内容如下

public function down() { $id = $this->_get('id'); $M = M("downloads"); $data=$M->where("id=$id and status=1")->find(); !$data && exit; $filename = iconv('UTF-8','GBK',$data['filename']); $savename = $data['savename']; $myfile = $data[url] ? $data[url] : 'Uploads/file/'.$savename; if(file_exists($myfile)){ $M->where("id=$id")->setInc('downloads'); $file = @ fopen($myfile, "r"); header("Content-type: application/octet-stream"); header("Content-Disposition: attachment; filename=" .$filename ); while (!feof($file)) { echo fread($file, 50000); } fclose($file); exit; }else{ echo '文件不存在！'; } }

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