PHP" method="post" enctype="multipart/form-data">

PHP.net/upload-tmp-dir ;upload_tmp_dir =

PHP;"> move_uploaded_file(src_url,goa_url)

PHP.net/upload-max-filesize upload_max_filesize = 2M

PHP will accept. ; http://PHP.net/post-max-size post_max_size = 8M

file($file['tmp_name']);

PHP;"> PHP upload($_FILES['file']); function upload($file){ if($file['error']!=0){ return false; } //3M $max_size = 3145728; if($max_size<$file['size']){ return false; } //设置一个后缀名与mime的映射关系 $type_map = array( '.jpeg'=>array('image/jpeg','image/pjpeg'),'.jpg'=>array('image/jpeg','.png'=>array('image/png','image/x-png'),'.gif'=>array('image/gif') ); //后缀 $allow_ext_list = array('.jpeg','.png','.jpg'); $ext = strtolower(strrchr($file['name'],'.')); if(!in_array($ext,$allow_ext_list)){ echo '不支持该图片格式'; return false; } //MIME $allow_mime_list = array(); foreach($allow_ext_list as $val){ $allow_mime_list = array_merge($allow_mime_list,$type_map[$val]); } //浏览器提供信息坚持 $allow_mime_list = array_unique($allow_mime_list); if(!in_array($file['type'],$allow_mime_list)){ echo '不支持该图片格式'; return false; } //PHP自身检查 $file_mime = new Finfo(FILEINFO_MIME_TYPE); $mime = $file_mime->file($file['tmp_name']); if(!in_array($mime,$allow_mime_list)){ echo '不支持该图片格式'; return false; } //目录存储 $up_loadpath = './'; $sub_dir = date('Ymdh'); if(!is_dir($up_loadpath.$sub_dir)){ mkdir($up_loadpath.$sub_dir); } $prefix = 'bee_'; $name = uniqid($prefix,true).$ext; if(move_uploaded_file($file['tmp_name'],$up_loadpath.$sub_dir.$name)){ echo '上传成功'; return $name; }else{ echo '上传失败'; return false; } }