WordPress 限制非管理员上传文件大小

主题functions.php文件添加以下函数。

/**
* Filter the upload size limit for non-administrators.
*
* @param string $size Upload size limit (in bytes).
* @return int (maybe) Filtered size limit.
*/
function filter_site_upload_size_limit( $size ) {
// Set the upload size limit to 10 MB for users lacking the 'manage_options' capability.
if ( ! current_user_can( 'manage_options' ) ) {
// 10 MB.
$size = 1024 * 10000;
}
return $size;
}
add_filter( 'upload_size_limit', 'filter_site_upload_size_limit', 20 );