暗区突围GM服(Gm版)WordPress 限制不同用户角色可上传的文件类型及大小

2025-11-03 23:11:22 [综合] 来源：嗜痂之癖网

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，色可上传暗区突围GM服(Gm版)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暗区突围德古拉直装V2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暗区突围4指方案导入文件类型：

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，可以参考下面的暗区突围M4A1平民改装方案例子：

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，还可以通过下面的暗区PC版手机安装更简洁的方法，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。

限制用户上传的暗区金龙直装v1.0.0科技文件大小

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。神鹿科技(免费迷你枪战精英)

限制不同用户角色可上传的文件类型及大小

其实上面已经给出了限制类型和大小的方法，要根据不同用户角色来限制，只需要添加角色判断代码即可。暗区突围透视科技倡萌举个综合的例子：

//不同用户上传的类型 function custom_upload_mimes ( $existing_mimes=array() ) { unset ($existing_mimes);//禁止上传任何文件 if( current_user_can( publish_posts ) && !current_user_can( publish_pages ) ) { //允许作者（Author）上传的类型 $existing_mimes[jpg|jpeg|gif|png]=image/image;//允许用户上传jpg,gif,png文件 $existing_mimes[zip]=application/zip; //允许用户上传zip压缩包 $existing_mimes[pdf]=application/pdf; //允许用户上传pdf文件 }elseif( current_user_can( edit_posts ) && !current_user_can( publish_posts ) ) { //允许投稿者（Contributor）上传的类型 $existing_mimes[jpg|jpeg|gif|png]=image/image; $existing_mimes[pdf]=application/pdf; }else{ //其他用户角色上传的类型 $existing_mimes[jpg|jpeg|gif|png]=image/image; } return $existing_mimes; } //不同用户上传的大小 function max_up_size() { if( current_user_can( publish_posts ) && !current_user_can( publish_pages ) ) { return 2048*1024; // 允许作者（Author）上传 2M }elseif( current_user_can( edit_posts ) && !current_user_can( publish_posts ) ) { return 1024*1024; // 允许投稿者（Contributor）上传 1M }else{ return 500*1024; // 其他用户角色上传 500 kb } } //只对非管理员执行这两个函数（即：对管理员不生效） if( !current_user_can( manage_options ) ) { add_filter(upload_mimes, custom_upload_mimes); add_filter(upload_size_limit, max_up_size); }

(责任编辑：知识)