开放注册的限型及WordPress站点 ,一般都会根据不同等级的同用用户角色来赋予不同的权限。文件上传功能就是户角一个比较常用的功能,那么,色可上传小宝直装v3.0下载如何限制不同用户角色可上传的限型及文件类型及大小呢?下面倡萌就来说说这个问题
。 让用户拥有上传文件的同用香肠派对辅助器v1.0.2权限默认情况下,有些用户是户角不允许上传文件的,你可以在主题的色可上传 functions.php 添加下面的代码:  //允许用户投稿时上传文件 if ( current_user_can(contributor) && !current_user_can(upload_files) ) add_action(admin_init, allow_contributor_uploads); function allow_contributor_uploads() { $contributor = get_role(contributor); $contributor->add_cap(upload_files); } 上面的代码就是给 contributor 这个用户角色添加了 upload_files (上传文件)的权限。 
限制用户上传文件的限型及类型首先
,大家可以先了解一下 WordPress 默认允许上传的同用文件类型 ,打开WordPress的户角 /wp-includes/functions.php 文件
,然后搜索 function wp_get_mime_types 定位到那里
,色可上传你就会看到详细的限型及香肠派对辅助菜单文件类型:  function wp_get_mime_types() { // Accepted MIME types are set here as PCRE unless provided. return apply_filters( mime_types, array( // Image formats jpg|jpeg|jpe => image/jpeg, gif => image/gif, png => image/png, bmp => image/bmp, tif|tiff => image/tiff, ico => image/x-icon, // Video formats asf|asx|wax|wmv|wmx => video/asf, avi => video/avi, divx => video/divx, flv => video/x-flv, mov|qt => video/quicktime, mpeg|mpg|mpe => video/mpeg, mp4|m4v => video/mp4, ogv => video/ogg, mkv => video/x-matroska, // Text formats txt|asc|c|cc|h => text/plain, csv => text/csv, tsv => text/tab-separated-values, ics => text/calendar, rtx => text/richtext, css => text/css, htm|html => text/html, // Audio formats mp3|m4a|m4b => audio/mpeg, ra|ram => audio/x-realaudio, wav => audio/wav, ogg|oga => audio/ogg, mid|midi => audio/midi, wma => audio/wma, mka => audio/x-matroska, // Misc application formats rtf => application/rtf, js => application/javascript, pdf => application/pdf, swf => application/x-shockwave-flash, class => application/java, tar => application/x-tar, zip => application/zip, gz|gzip => application/x-gzip, rar => application/rar, 7z => application/x-7z-compressed, exe => application/x-msdownload, // MS Office formats doc => application/msword, pot|pps|ppt => application/vnd.ms-powerpoint, wri => application/vnd.ms-write, xla|xls|xlt|xlw => application/vnd.ms-excel, mdb => application/vnd.ms-access, mpp => application/vnd.ms-project, docx => application/vnd.openxmlformats-officedocument.wordprocessingml.document, docm => application/vnd.ms-word.document.macroEnabled.12, dotx => application/vnd.openxmlformats-officedocument.wordprocessingml.template, dotm => application/vnd.ms-word.template.macroEnabled.12, xlsx => application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, xlsm => application/vnd.ms-excel.sheet.macroEnabled.12, xlsb => application/vnd.ms-excel.sheet.binary.macroEnabled.12, xltx => application/vnd.openxmlformats-officedocument.spreadsheetml.template, xltm => application/vnd.ms-excel.template.macroEnabled.12, xlam => application/vnd.ms-excel.addin.macroEnabled.12, pptx => application/vnd.openxmlformats-officedocument.presentationml.presentation, pptm => application/vnd.ms-powerpoint.presentation.macroEnabled.12, ppsx => application/vnd.openxmlformats-officedocument.presentationml.slideshow, ppsm => application/vnd.ms-powerpoint.slideshow.macroEnabled.12, potx => application/vnd.openxmlformats-officedocument.presentationml.template, potm => application/vnd.ms-powerpoint.template.macroEnabled.12, ppam => application/vnd.ms-powerpoint.addin.macroEnabled.12, sldx => application/vnd.openxmlformats-officedocument.presentationml.slide, sldm => application/vnd.ms-powerpoint.slide.macroEnabled.12, onetoc|onetoc2|onetmp|onepkg => application/onenote, // OpenOffice formats odt => application/vnd.oasis.opendocument.text, odp => application/vnd.oasis.opendocument.presentation, ods => application/vnd.oasis.opendocument.spreadsheet, odg => application/vnd.oasis.opendocument.graphics, odc => application/vnd.oasis.opendocument.chart, odb => application/vnd.oasis.opendocument.database, odf => application/vnd.oasis.opendocument.formula, // WordPerfect formats wp|wpd => application/wordperfect, ) ); } => 的前面为格式,后面为格式描述。同用如果你要禁止上传其中的户角某些类型
,可以参考下面的香肠派对辅助器免root例子: 将下面的代码添加到主题的 functions.php 文件: //禁止上传avi和mp4格式的文件 add_filter(upload_mimes, custom_upload_mimes); function custom_upload_mimes ( $existing_mimes=array() ) { unset ($existing_mimes[avi]); unset ($existing_mimes[mp4]); return $existing_mimes; } 如果你还要禁止更多,可以按照 unset ($existing_mimes[格式]); 样例添加即可
。 如果你仅仅只需要允许用户上传几种类型而已 ,还可以通过下面的香肠派对辅助软件下载更简洁的方法,代码添加到主题的 functions.php 文件 : //只允许上传图片文件 add_filter(upload_mimes, custom_upload_mimes); function custom_upload_mimes ( $existing_mimes=array() ) { unset ($existing_mimes);//禁止上传任何文件 $existing_mimes[jpg|jpeg|gif|png]=image/image;//允许用户上传jpg,gif,png文件 return $existing_mimes; } 如果你还要允许上传其他格式,重复使用 $existing_mimes[格式]=描述; 即可。 限制用户上传的香肠派对辅助挂文件大小同样在主题的 functions.php 文件中,添加下面的代码: //限制上传文件的最大体积 function max_up_size() { return 500*1024; // 500 kb } add_filter(upload_size_limit, max_up_size); 上面的例子是限制所有用户上传的文件的最大体积为 500 kb (1M =1024*1024)。 注意:主机空间和WordPress本身一般设置了允许上传的文件的最大体积,所以在这里设置需要考虑到这点 |