PHP ZN函數代碼示例

 function upload($option)
 {
     // ONLY ALLOW SUPER ADMINS TO UPLOAD NEW ICONS
     if (!current_user_can('update_plugins')) {
         return 'You need super admin capabilities to use this option!';
     }
     // GET/SET DEFAULTS
     $supports = $option['supports'];
     $output = '';
     // CHECK TO SEE IF THE FILE TYPE IS ALLOWED
     // CHECK ON MULTISITE
     if (is_multisite() && strpos(get_site_option('upload_filetypes'), $supports['file_extension']) === false) {
         return 'It seems that the ' . $supports['file_extension'] . ' file type is not allowed on your multisite enable network. Please go to <a title="Network settings page" href="' . network_admin_url('settings.php') . '"">Network settings page</a> and add the ' . $supports['file_extension'] . ' file extension to the list of "Upload file types"';
     }
     // CHECK TO SEE IF ZIPARCHIVE IS INSTALLED ON THE SERVER
     if (!class_exists('ZipArchive')) {
         return 'It seems that the "ZipArchive" class is not installed on your server. Please contact your server administrator and ask them to enable this class in order to use this option.';
     }
     $output .= '<div class="zn_file_upload zn_admin_button" data-file_type="' . $supports['file_type'] . '" data-button="Upload" data-title="Upload File">Select file</div>';
     $output .= '<div class="uploads_container">';
     $fonts = ZN()->icon_manager->get_custom_fonts();
     if (!empty($fonts)) {
         foreach ($fonts as $key => $font) {
             $output .= '<a class="zn_remove_font" href="#">' . $key . '<span data-font_name="' . $key . '" class="zn_remove_font_trigger">&#215;</span></a> ';
         }
     }
     $output .= '</div>';
     return $output;
 }

 /**
  * check_version function.
  */
 public function check_version()
 {
     if (get_option($this->theme_old_version) != ZN()->theme_data['version'] || get_option($this->theme_db_version) != ZN()->theme_data['version']) {
         $this->install();
         do_action('zn_theme_installed');
     }
 }

 function add_inline_css()
 {
     $css = get_post_meta(zn_get_the_id(), 'zn_page_custom_css', true);
     if (!empty($css)) {
         ZN()->add_inline_css($css);
     }
 }

 function __construct()
 {
     if (ZN()->is_request('admin')) {
         require FW_PATH . '/classes/class-mega-menu-admin.php';
     }
     // ADD THE MEGA MENU WALKER AND CLASSES
     add_filter('wp_nav_menu_args', array(&$this, 'enable_custom_walker'), 100);
 }

 function zn_check_updates()
 {
     $option_name = ZN()->theme_data['theme_id'] . '_update_config';
     $saved_config = get_option($option_name);
     if (!empty($saved_config['tf_username']) && !empty($saved_config['tf_api']) && !empty($this->config['author'])) {
         require_once FW_PATH . '/modules/envato_theme_updater/class-pixelentity-theme-update.php';
         PixelentityThemeUpdate::init($saved_config['tf_username'], $saved_config['tf_api'], $this->config['author']);
     }
 }

 function zn_print_scripts($hook)
 {
     /* Set default theme pages where the js and css should be loaded */
     $about_pages = array('dashboard_page_zn-update');
     if (!in_array($hook, $about_pages)) {
         return;
     }
     // Load the framework assets
     ZN()->load_html_scripts();
 }

 function add_inline_code()
 {
     $css = get_post_meta(zn_get_the_id(), 'zn_page_custom_css', true);
     $js = get_post_meta(zn_get_the_id(), 'zn_page_custom_js', true);
     if (!empty($css)) {
         ZN()->add_inline_css($css);
     }
     if (!empty($js)) {
         ZN()->add_inline_js(array('zn_page_custom_js' => $js));
     }
 }

function zn_update_405()
{
    $uploads = wp_upload_dir();
    $file_path = trailingslashit($uploads['basedir']) . 'zn_custom_css.css';
    // Change the custom css saving from file to DB
    if (file_exists($file_path)) {
        $saved_css = file_get_contents($file_path);
        if (!empty($saved_css)) {
            update_option('zn_' . ZN()->theme_data['theme_id'] . '_custom_css', $saved_css, false);
        }
        @unlink($file_path);
    }
}

function zn_add_custom_css_saving($saved_options)
{
    if (isset($saved_options['advanced_options']['custom_css'])) {
        $custom_css = $saved_options['advanced_options']['custom_css'];
        update_option('zn_' . ZN()->theme_data['theme_id'] . '_custom_css', $custom_css, false);
        // Remove custom css from the main options field
        unset($saved_options['advanced_options']['custom_css']);
    }
    if (isset($saved_options['advanced_options']['custom_js'])) {
        $custom_js = $saved_options['advanced_options']['custom_js'];
        update_option('zn_' . ZN()->theme_data['theme_id'] . '_custom_js', $custom_js, true);
        // Remove custom css from the main options field
        unset($saved_options['advanced_options']['custom_js']);
    }
    return $saved_options;
}

    function element()
    {
        // print_z($this);
        $elm_classes = array();
        $elm_classes[] = $uid = $this->data['uid'];
        $elm_classes[] = $this->opt('css_class', '');
        $eq_pad_start = '';
        $eq_pad_end = '';
        $eq_pad_type = $this->opt('pad_type', '');
        if (!empty($eq_pad_type)) {
            $eq_pad_start = '<div class="zn_col_' . $eq_pad_type . '">';
            $eq_pad_end = '</div>';
        }
        ?>

	<div class="zn_custom_container <?php 
        echo implode(' ', $elm_classes);
        ?>
 clearfix">
		<?php 
        echo $eq_pad_start;
        ?>
			<div class="row zn_columns_container zn_content <?php 
        echo $this->opt('gutter_size', '');
        ?>
" data-droplevel="1">
				<?php 
        if (empty($this->data['content'])) {
            $column = ZN()->pagebuilder->add_module_to_layout('ZnColumn', array(), array(), 'col-sm-12');
            $this->data['content'] = array($column);
        }
        if (!empty($this->data['content'])) {
            ZN()->pagebuilder->zn_render_content($this->data['content']);
        }
        ?>
			</div>
		<?php 
        echo $eq_pad_end;
        ?>
	</div><!-- /.zn_custom_container -->


	<?php 
    }

    function element()
    {
        $column_offset = $this->opt('column_offset') && !ZN()->pagebuilder->is_active_editor ? ' ' . $this->opt('column_offset') . ' ' : '';
        $width = $this->data['width'] ? $this->data['width'] : 'col-md-12';
        $size_small = $this->opt('size_small', str_replace("md", "sm", $width));
        $size_xsmall = $this->opt('size_xsmall', '');
        $size_large = $this->opt('size_large', '');
        ?>

		<div class="<?php 
        echo $this->data['uid'];
        ?>
 <?php 
        echo $column_offset . ' ' . $width . ' ' . $size_small . ' ' . $size_xsmall . ' ' . $size_large . ' ' . $this->opt('css_class', '');
        ?>
 zn_sortable_content zn_content " data-droplevel="2">
			<?php 
        ZN()->pagebuilder->zn_render_content($this->data['content']);
        ?>
		</div>
	<?php 
    }

 function zn_render_meta_box($post, $metabox)
 {
     // Get the current metabox
     $zn_metabox = $metabox['args']['what_box'];
     $output = '';
     //var_dump( get_post_meta($post->ID) );
     $output .= ZN()->html->zn_render_meta_start($zn_metabox['slug']);
     if (!empty($this->metaboxes_options)) {
         foreach ($this->metaboxes_options as $key => $element) {
             if (in_array($metabox['id'], $element['slug'])) {
                 if (method_exists(ZN()->html, $element['type'])) {
                     $saved_value = get_post_meta($post->ID, $element['id'], true);
                     if (!empty($saved_value)) {
                         $element['std'] = $saved_value;
                     }
                     $output .= ZN()->html->zn_render_single_option($element);
                 }
             }
         }
     }
     $output .= ZN()->html->zn_render_meta_end();
     $output .= wp_nonce_field('zn_ajax_nonce', 'zn_ajax_nonce', false, false);
     echo $output;
 }

do_action('zn_pb_editor_right');
?>
			</div>

			<input class="zn_pb_search" type="search" placeholder="Search for an element"/>
			<a class="zn_publish" href="#">
				<span class="zn_publish_loading"></span>
				<span class="zn_publish_text">PUBLISH</span>
			</a>
		</div>
	</div>

	<div class="zn_pb_tab_wrapper" class="fixclear">

		<div id="zn_pb_content" class="zn_pb_tab"></div>

		<?php 
/*
 *	HOOK INTO THE TABS
 */
do_action('znpb_editor_tabs_content');
?>


	</div>
	<input type="hidden" id="zn_post_id" value="<?php 
echo ZN()->pagebuilder->get_post_id();
?>
"/>
</div>
<div class="zn_page_loading"></div>

 function do_theme_activation()
 {
     $options_field = ZN()->theme_data['options_prefix'];
     $saved_values = array();
     //delete_option(  $options_field );
     // IF THE OPTIONS FIELD IS NOT PRESENT
     if (false === get_option($options_field)) {
         $file = THEME_BASE . "/template_helpers/dummy_content/theme_options.txt";
         if (!is_file($file)) {
             include THEME_BASE . '/template_helpers/options/theme-options.php';
             foreach ($admin_options as $key => $option) {
                 if (!empty($option['std'])) {
                     $saved_values[$option['parent']][$option['id']] = $option['std'];
                 } else {
                     $saved_values[$option['parent']][$option['id']] = '0';
                 }
             }
         } else {
             $data = file_get_contents($file);
             $saved_values = json_decode($data, true);
         }
         update_option($options_field, $saved_values);
         generate_options_css($saved_values);
         ZN()->pagebuilder->refresh_pb_data();
     }
 }

        wp_enqueue_script('jquery-ui-slider');
        // HTML
        wp_enqueue_script('jquery-ui-button');
        // HTML
        wp_enqueue_script('jquery-ui-sortable');
        // HTML + PB
        wp_enqueue_script('jquery-ui-datepicker');
        // HTML
        wp_enqueue_media();
        wp_enqueue_script('zn_timepicker', FW_URL . '/assets/js/jquery.timepicker.min.js', array('jquery'), ZN_FW_VERSION, true);
        wp_enqueue_script('zn_modal', FW_URL . '/assets/js/zn_modal.js', array('jquery'), ZN_FW_VERSION, true);
        wp_enqueue_script('zn_media', FW_URL . '/assets/js/zn_media.js', array('jquery'), ZN_FW_VERSION, true);
        wp_enqueue_script('zn_ace', FW_URL . '/assets/js/src-min-noconflict/ace.js', array('jquery'), ZN_FW_VERSION, true);
        wp_enqueue_script('ZnFormHelper', FW_URL . '/assets/js/ZnFormHelper.js', array('jquery'), ZN_FW_VERSION, true);
        wp_enqueue_script('zn_html_script', FW_URL . '/assets/js/zn_html_script.js', array('jquery'), ZN_FW_VERSION, true);
        wp_localize_script('zn_html_script', 'ZnAjax', array('ajaxurl' => admin_url('admin-ajax.php'), 'security' => wp_create_nonce('zn_framework'), 'debug' => $this->theme_data['debug']));
    }
}
/**
 * Returns the main instance of WC to prevent the need to use globals.
 *
 * @since  1.0.0
 * @return Zn_Framework
 */
function ZN()
{
    return Zn_Framework::instance();
}
// Global for backwards compatibility.
$GLOBALS['zn_framework'] = ZN();