PHP current_user_can函数代码示例

function generate_ryuzine_stylesheets()
{
    // verify this came from the our screen and with proper authorization.
    if (!wp_verify_nonce($_POST['ryu_regenstyles_noncename'], 'ryuzine-regenstyles_install')) {
        return;
    }
    // Check permissions
    if (!current_user_can('administrator')) {
        echo "<div class='error'><p>Sorry, you do not have the correct priveledges to install the files.</p></div>";
        return;
    }
    $my_query = null;
    $my_query = new WP_Query(array('post_type' => 'ryuzine'));
    if ($my_query->have_posts()) {
        while ($my_query->have_posts()) {
            $my_query->the_post();
            $stylesheet = "";
            $issuestyles = get_post_meta(get_the_ID(), '_ryustyles', false);
            if (!empty($issuestyles)) {
                foreach ($issuestyles as $appendstyle) {
                    // If there are multiple ryustyles append them //
                    $stylesheet = $stylesheet . $appendstyle;
                }
            }
            if ($stylesheet != "") {
                ryu_create_css($stylesheet, get_the_ID());
            }
        }
    }
    // reset css check //
    //	update_option('ryu_css_admin',0);
    wp_reset_query();
    return;
}

function sf_sc_button()
{
    if (current_user_can('edit_posts') && current_user_can('edit_pages')) {
        add_filter('mce_external_plugins', 'sf_add_tinymce_plugin');
        add_filter('mce_buttons', 'sf_register_shortcode_button');
    }
}

 /**
  * Save Force SSL option to post or page
  *
  * @param int $post_id
  * @return int $post_id
  */
 public function post_save($post_id)
 {
     if (array_key_exists($this->getPlugin()->getSlug(), $_POST)) {
         if (!wp_verify_nonce($_POST[$this->getPlugin()->getSlug()], $this->getPlugin()->getSlug())) {
             return $post_id;
         }
         if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
             return $post_id;
         }
         if (@$_POST['post_type'] == 'page') {
             if (!current_user_can('edit_page', $post_id)) {
                 return $post_id;
             }
         } else {
             if (!current_user_can('edit_post', $post_id)) {
                 return $post_id;
             }
         }
         $force_ssl = @$_POST['force_ssl'] == 1 ? true : false;
         if ($force_ssl) {
             update_post_meta($post_id, 'force_ssl', 1);
         } else {
             delete_post_meta($post_id, 'force_ssl');
         }
         $force_ssl_children = @$_POST['force_ssl_children'] == 1 ? true : false;
         if ($force_ssl_children) {
             update_post_meta($post_id, 'force_ssl_children', 1);
         } else {
             delete_post_meta($post_id, 'force_ssl_children');
         }
     }
     return $post_id;
 }

 /**
  * Refresh the parameters passed to the JavaScript via JSON.
  *
  * @since 3.4.0
  * @since 4.2.0 Moved from WP_Customize_Upload_Control.
  *
  * @see WP_Customize_Control::to_json()
  */
 public function to_json()
 {
     parent::to_json();
     $this->json['label'] = html_entity_decode($this->label, ENT_QUOTES, get_bloginfo('charset'));
     $this->json['mime_type'] = $this->mime_type;
     $this->json['button_labels'] = $this->button_labels;
     $this->json['canUpload'] = current_user_can('upload_files');
     $value = $this->value();
     if (is_object($this->setting)) {
         if ($this->setting->default) {
             // Fake an attachment model - needs all fields used by template.
             // Note that the default value must be a URL, NOT an attachment ID.
             $type = in_array(substr($this->setting->default, -3), array('jpg', 'png', 'gif', 'bmp')) ? 'image' : 'document';
             $default_attachment = array('id' => 1, 'url' => $this->setting->default, 'type' => $type, 'icon' => wp_mime_type_icon($type), 'title' => basename($this->setting->default));
             if ('image' === $type) {
                 $default_attachment['sizes'] = array('full' => array('url' => $this->setting->default));
             }
             $this->json['defaultAttachment'] = $default_attachment;
         }
         if ($value && $this->setting->default && $value === $this->setting->default) {
             // Set the default as the attachment.
             $this->json['attachment'] = $this->json['defaultAttachment'];
         } elseif ($value) {
             $this->json['attachment'] = wp_prepare_attachment_for_js($value);
         }
     }
 }

 /**
  * Adds menu item to the admin bar
  */
 function add_admin_bar_menu()
 {
     global $wp_admin_bar;
     if (current_user_can('NextGEN Change options')) {
         $wp_admin_bar->add_menu(array('parent' => 'ngg-menu', 'id' => 'ngg-menu-display_settings', 'title' => __('Gallery Settings', 'nggallery'), 'href' => admin_url('admin.php?page=ngg_display_settings')));
     }
 }

 static function InitClass()
 {
     wp_enqueue_style(WPFB . '-admin', WPFB_PLUGIN_URI . 'css/admin.css', array(), WPFB_VERSION, 'all');
     wp_register_script('jquery-deserialize', WPFB_PLUGIN_URI . 'bower_components/jquery-deserialize/dist/jquery.deserialize.min.js', array('jquery'), WPFB_VERSION);
     if (isset($_GET['page'])) {
         $page = $_GET['page'];
         if ($page == 'wpfilebase_files') {
             wp_enqueue_script('postbox');
             wp_enqueue_style('dashboard');
         } elseif ($page == 'wpfilebase' && isset($_GET['action']) && $_GET['action'] == 'sync') {
             do_action('wpfilebase_sync');
             wp_die("Filebase synced.");
         }
     }
     add_action('wp_dashboard_setup', array(__CLASS__, 'AdminDashboardSetup'));
     //wp_register_widget_control(WPFB_PLUGIN_NAME, "[DEPRECATED]".WPFB_PLUGIN_NAME .' '. __('File list','wp-filebase'), array(__CLASS__, 'WidgetFileListControl'), array('description' => __('DEPRECATED','wp-filebase')));
     add_action('admin_print_scripts', array('WPFB_AdminLite', 'AdminPrintScripts'));
     self::CheckChangedVer();
     if (basename($_SERVER['PHP_SELF']) === "plugins.php") {
         if (isset($_GET['wpfb-uninstall']) && current_user_can('edit_files')) {
             update_option('wpfb_uninstall', !empty($_GET['wpfb-uninstall']) && $_GET['wpfb-uninstall'] != "0");
         }
         if (get_option('wpfb_uninstall')) {
             function wpfb_uninstall_warning()
             {
                 echo "\n\t\t\t\t<div id='wpfb-warning' class='updated fade'><p><strong>" . __('WP-Filebase will be uninstalled completely when deactivating the Plugin! All settings and File/Category Info will be deleted. Actual files in the upload directory will not be removed.', 'wp-filebase') . ' <a href="' . add_query_arg('wpfb-uninstall', '0') . '">' . __('Cancel') . "</a></strong></p></div>\n\t\t\t\t";
             }
             add_action('admin_notices', 'wpfb_uninstall_warning');
         }
     }
 }

    function my_plugin_options()
    {
        if (!current_user_can('manage_options')) {
            wp_die(__('You do not have sufficient permissions to access this page.'));
        }
        ?>
				<center>
            <h1>Add Menu</h1>
                <label for="name">Add a New Menu to the site: </label><br/>
                <input type="text" id="name" name="name" placeholder="Enter Menu Name"/>
                <div id="myDiv"><h2>Let AJAX change this text</h2></div>
                <button class="btn btn-info" onclick="anthonyportfolioajax()">Add New Menu</button>
            <script type="text/javascript" src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
            <script>
                function anthonyportfolioajax()
                {
                    var name = $('#name').val();
                    var data = {
							'action': 'process_add',
							'name': name
                            };
                    $.post( ajaxurl, data, function(response ){
                            var mes = "Menu has been added Successfully";
                            $("#myDiv").text( mes );
                            var name = $('#name').val();
                            alert(ajaxurl);
                            console.log(response);
                        }
                    );
                }
            </script>
        </center>
				<?php 
    }

function ultimatum_meta_save_postdata( $post_id, $post ) {
	//echo '<pre>';print_r($_POST);die();
	//* Verify the nonce
	if ( ! isset( $_POST[ 'ultimatum_additional_meta_nonce' ] ) || ! wp_verify_nonce( $_POST[ 'ultimatum_additional_meta_nonce' ], 'ultimatum_additional_meta' ) )
		return;
	
	//* Don't try to save the data under autosave, ajax, or future post.
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
		return;
	if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
		return;
	if ( defined( 'DOING_CRON' ) && DOING_CRON )
		return;
	//* Grab the post object
	$post = get_post( $post );
	
	//* Don't save if WP is creating a revision (same as DOING_AUTOSAVE?)
	if ( 'revision' === $post->post_type )
		return;
	//* Check that the user is allowed to edit the post
	if ( ! current_user_can( 'edit_post', $post->ID ) )
		return;
	
	$mydata = $_POST['ultimatum_video'];
    update_post_meta($post->ID, 'ultimatum_video', $mydata);
	$mydata = $_POST['ultimatum_author'];
	update_post_meta($post->ID, 'ultimatum_author', $mydata);
}

function um_admin_user_actions_hook($actions)
{
    $actions = null;
    if (!um_user('super_admin')) {
        if (um_user('account_status') == 'awaiting_admin_review') {
            $actions['um_approve_membership'] = array('label' => __('Approve Membership', 'ultimatemember'));
            $actions['um_reject_membership'] = array('label' => __('Reject Membership', 'ultimatemember'));
        }
        if (um_user('account_status') == 'rejected') {
            $actions['um_approve_membership'] = array('label' => __('Approve Membership', 'ultimatemember'));
        }
        if (um_user('account_status') == 'approved') {
            $actions['um_put_as_pending'] = array('label' => __('Put as Pending Review', 'ultimatemember'));
        }
        if (um_user('account_status') == 'awaiting_email_confirmation') {
            $actions['um_resend_activation'] = array('label' => __('Resend Activation E-mail', 'ultimatemember'));
        }
        if (um_user('account_status') != 'inactive') {
            $actions['um_deactivate'] = array('label' => __('Deactivate this account', 'ultimatemember'));
        }
        if (um_user('account_status') == 'inactive') {
            $actions['um_reenable'] = array('label' => __('Reactivate this account', 'ultimatemember'));
        }
        if (um_current_user_can('delete', um_profile_id())) {
            $actions['um_delete'] = array('label' => __('Delete this user', 'ultimatemember'));
        }
    }
    if (current_user_can('delete_users')) {
        $actions['um_switch_user'] = array('label' => __('Login as this user', 'ultimatemember'));
    }
    um_fetch_user(um_profile_id());
    return $actions;
}

 /**
  *	Process the request
  *	@todo Setting for reassigning user's posts
  */
 public function process()
 {
     // Verify the security nonce and die if it fails
     if (!isset($_POST['wp_delete_user_accounts_nonce']) || !wp_verify_nonce($_POST['wp_delete_user_accounts_nonce'], 'wp_delete_user_accounts_nonce')) {
         wp_send_json(array('status' => 'fail', 'title' => __('Error!', 'wp-delete-user-accounts'), 'message' => __('Request failed security check.', 'wp-delete-user-accounts')));
     }
     // Don't permit admins to delete their own accounts
     if (current_user_can('manage_options')) {
         wp_send_json(array('status' => 'fail', 'title' => __('Error!', 'wp-delete-user-accounts'), 'message' => __('Administrators cannot delete their own accounts.', 'wp-delete-user-accounts')));
     }
     // Get the current user
     $user_id = get_current_user_id();
     // Get user meta
     $meta = get_user_meta($user_id);
     // Delete user's meta
     foreach ($meta as $key => $val) {
         delete_user_meta($user_id, $key);
     }
     // Destroy user's session
     wp_logout();
     // Delete the user's account
     $deleted = wp_delete_user($user_id);
     if ($deleted) {
         // Send success message
         wp_send_json(array('status' => 'success', 'title' => __('Success!', 'wp-delete-user-accounts'), 'message' => __('Your account was successfully deleted. Fair well.', 'wp-delete-user-accounts')));
     } else {
         wp_send_json(array('status' => 'fail', 'title' => __('Error!', 'wp-delete-user-accounts'), 'message' => __('Request failed.', 'wp-delete-user-accounts')));
     }
 }

function wptreehouse_badges_options_page()
{
    if (!current_user_can('manage_options')) {
        wp_die('You do not have sufficient permissions to access this page.');
    }
    global $plugin_url;
    global $options;
    global $display_json;
    if (isset($_POST['wptreehouse_form_submitted'])) {
        $hidden_field = esc_html($_POST['wptreehouse_form_submitted']);
        if ($hidden_field == 'Y') {
            $wptreehouse_username = esc_html($_POST['wptreehouse_username']);
            $wptreehouse_profile = wptreehouse_badges_get_profile($wptreehouse_username);
            $options['wptreehouse_username'] = $wptreehouse_username;
            $options['wptreehouse_profile'] = $wptreehouse_profile;
            $options['last_updated'] = time();
            update_option('wptreehouse_badges', $options);
        }
    }
    $options = get_option('wptreehouse_badges');
    if ($options != '') {
        $wptreehouse_username = $options['wptreehouse_username'];
        $wptreehouse_profile = $options['wptreehouse_profile'];
    }
    require 'inc/options-page-wrapper.php';
}

function comcon_meta_save()
{
    global $post;
    $post_id = $post->ID;
    if (!isset($_POST['comcon-form-nonce']) || !wp_verify_nonce($_POST['comcon-form-nonce'], basename(__FILE__))) {
        return $post->ID;
    }
    $post_type = get_post_type_object($post->post_type);
    if (!current_user_can($post_type->cap->edit_post, $post_id)) {
        return $post->ID;
    }
    $input = array();
    $input['position'] = isset($_POST['comcon-form-position']) ? $_POST['comcon-form-position'] : '';
    $input['major'] = isset($_POST['comcon-form-major']) ? $_POST['comcon-form-major'] : '';
    $input['order'] = str_pad($input['order'], 3, "0", STR_PAD_LEFT);
    foreach ($input as $field => $value) {
        $old = get_post_meta($post_id, 'comcon-form-' . $field, true);
        if ($value && '' == $old) {
            add_post_meta($post_id, 'comcon-form-' . $field, $value, true);
        } else {
            if ($value && $value != $old) {
                update_post_meta($post_id, 'comcon-form-' . $field, $value);
            } else {
                if ('' == $value && $old) {
                    delete_post_meta($post_id, 'comcon-form-' . $field, $old);
                }
            }
        }
    }
}

 /**
  * Init dashboard widgets
  */
 public function init()
 {
     if (current_user_can('publish_shop_orders')) {
         wp_add_dashboard_widget('woocommerce_dashboard_recent_reviews', __('WooCommerce Recent Reviews', 'woocommerce'), array($this, 'recent_reviews'));
     }
     wp_add_dashboard_widget('woocommerce_dashboard_status', __('WooCommerce Status', 'woocommerce'), array($this, 'status_widget'));
 }

/**
 * Get all admin bar items in back end and write in a options of Adminimize settings array
 *
 * @since    1.8.1  01/10/2013
 */
function _mw_adminimize_get_admin_bar_nodes()
{
    // Only Administrator get all items.
    if (!current_user_can('manage_options')) {
        return;
    }
    if (_mw_adminimize_exclude_settings_page()) {
        return;
    }
    /** @var $wp_admin_bar WP_Admin_Bar */
    global $wp_admin_bar;
    // @see: http://codex.wordpress.org/Function_Reference/get_nodes
    $all_toolbar_nodes = $wp_admin_bar->get_nodes();
    $settings = 'mw_adminimize_admin_bar_frontend_nodes';
    // Set string on settings for Admin Area.
    if (is_admin()) {
        $settings = 'mw_adminimize_admin_bar_nodes';
    }
    if ($all_toolbar_nodes) {
        // get all options
        $adminimizeoptions = _mw_adminimize_get_option_value();
        // add admin bar array
        $adminimizeoptions[$settings] = $all_toolbar_nodes;
        // update options
        _mw_adminimize_update_option($adminimizeoptions);
    }
}

function linkblog_save_post($post_id)
{
    // Ignore if doing an autosave
    if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
        return;
    }
    // verify data came from the linkblog meta box
    if (!wp_verify_nonce($_POST['linkblog_noncename'], plugin_basename(__FILE__))) {
        return;
    }
    // Check user permissions
    if ('post' == $_POST['post_type']) {
        if (!current_user_can('edit_page', $post_id)) {
            return;
        }
    } else {
        if (!current_user_can('edit_post', $post_id)) {
            return;
        }
    }
    $linkblog_data = $_POST['linkblog_url'];
    if ($linkblog_data == "") {
        return;
    } else {
        update_post_meta($post_id, 'linkblog_url', $linkblog_data);
    }
}