上述解决方案不起作用（返回错误500），但此解决方案起作用：

add_action(\'admin_head\', \'leave_only_publish_button\');

function leave_only_publish_button() {
    if( !current_user_can(\'activate_plugins\') ) { //doesn\'t affect users who can activate plugins, remove if needed
        echo \'<style>
            #misc-publishing-actions, #minor-publishing-actions {
            display:none;
        }
    </style>\';
    }
}