PHP add_query_arg函数代码示例

 public function update_qs_add_to_cart_url($cart_url)
 {
     $ref_url = wp_get_referer();
     $ref_url = remove_query_arg(array('added-to-cart', 'add-to-cart'), $ref_url);
     $ref_url = add_query_arg(array('add-to-cart' => $this->id), $ref_url);
     return $ref_url;
 }

 /**
  * Get fonts URL.
  *
  * @return string
  */
 function educator_theme_fonts_url()
 {
     $fonts = array();
     $fonts[] = get_theme_mod('headings_font', 'Open Sans');
     $fonts[] = get_theme_mod('body_font', 'Open Sans');
     $font_families = array();
     $available_fonts = apply_filters('ib_theme_get_fonts', array());
     foreach ($fonts as $font_name) {
         if (isset($font_families[$font_name])) {
             continue;
         }
         if (isset($available_fonts[$font_name])) {
             $font = $available_fonts[$font_name];
             $font_families[$font_name] = urlencode($font_name);
             if (!empty($font['font_styles'])) {
                 $font_families[$font_name] .= ':' . $font['font_styles'];
             }
         }
     }
     if (empty($font_families)) {
         return false;
     }
     $query_args = array(array('family' => implode('|', $font_families)));
     $charater_sets = get_theme_mod('charater_sets', 'latin,latin-ext');
     if (!empty($charater_sets)) {
         $query_args['subset'] = educator_sanitize_character_sets($charater_sets);
     }
     return add_query_arg($query_args, '//fonts.googleapis.com/css');
 }

 /**
  * Output the settings
  */
 public function output()
 {
     global $woocommerce, $woocommerce_settings, $current_section, $current_tab;
     if (!current_user_can('manage_woocommerce')) {
         wp_die(__('You do not have sufficient permissions to access this page.', MAILPOET_WOOCOMMERCE_TEXT_DOMAIN));
     }
     do_action('woocommerce_mailpoet_settings_start');
     $mailpoet_settings = $this->get_settings();
     // Get current section
     $current_section = empty($_REQUEST['section']) ? 'general' : sanitize_text_field(urldecode($_REQUEST['section']));
     $current = $current_section ? '' : ' class="current"';
     // Creates each settings section.
     $mailpoet_section = apply_filters('woocommerce_mailpoet_settings_sections', array('general' => __('General', MAILPOET_WOOCOMMERCE_TEXT_DOMAIN), 'lists' => __('Lists', MAILPOET_WOOCOMMERCE_TEXT_DOMAIN)));
     foreach ($mailpoet_section as $section => $title) {
         $title = ucwords($title);
         $current = $section == $current_section ? ' class="current"' : '';
         $links[] = '<a href="' . add_query_arg('section', $section, admin_url('admin.php?page=woocommerce_settings&tab=mailpoet')) . '"' . $current . '>' . esc_html($title) . '</a>';
     }
     echo '<ul class="subsubsub"><li>' . implode('| </li><li>', $links) . '</li></ul><br class="clear" />';
     woocommerce_admin_fields($mailpoet_settings);
     if ($current_section == 'lists') {
         include_once MailPoet_WooCommerce_Add_on()->plugin_path() . '/includes/admin/settings/settings-newsletters.php';
         $mailpoet_list = mailpoet_lists();
         do_action('woocommerce_mailpoet_list_newsletters', $mailpoet_list);
     }
 }

function mm_ux_log($args = array())
{
    $url = "https://ssl.google-analytics.com/collect";
    global $title;
    if (empty($_SERVER['REQUEST_URI'])) {
        return;
    }
    $path = explode('wp-admin', $_SERVER['REQUEST_URI']);
    if (empty($path) || empty($path[1])) {
        $path = array("", " ");
    }
    $defaults = array('v' => '1', 'tid' => 'UA-39246514-3', 't' => 'pageview', 'cid' => md5(get_option('siteurl')), 'uid' => md5(get_option('siteurl') . get_current_user_id()), 'cn' => 'mojo_wp_plugin', 'cs' => 'mojo_wp_plugin', 'cm' => 'plugin_admin', 'ul' => get_locale(), 'dp' => $path[1], 'sc' => '', 'ua' => @$_SERVER['HTTP_USER_AGENT'], 'dl' => $path[1], 'dh' => get_option('siteurl'), 'dt' => $title, 'ec' => '', 'ea' => '', 'el' => '', 'ev' => '');
    if (isset($_SERVER['REMOTE_ADDR'])) {
        $defaults['uip'] = $_SERVER['REMOTE_ADDR'];
    }
    $params = wp_parse_args($args, $defaults);
    $test = get_transient('mm_test', '');
    if (isset($test['key']) && isset($test['name'])) {
        $params['cm'] = $params['cm'] . "_" . $test['name'] . "_" . $test['key'];
    }
    //use test account for testing
    if (defined('WP_DEBUG') && WP_DEBUG) {
        $params['tid'] = 'UA-19617272-27';
    }
    $z = wp_rand(0, 1000000000);
    $query = http_build_query(array_filter($params));
    $args = array('body' => $query, 'method' => 'POST', 'blocking' => false);
    $url = add_query_arg(array('z' => $z), $url);
    wp_remote_post($url, $args);
}

function igthemes_font_url()
{
    $fonts_url = '';
    $fonts = array();
    $subsets = 'latin,latin-ext';
    /*
     * Translators: If there are characters in your language that are not supported,
     * translate this to 'off'. Do not translate into your own language.
     */
    if ('off' !== _x('on', 'Open Sans font: on or off', 'store-wp')) {
        $fonts[] = 'Open Sans:300italic,400italic,700italic,300,400,700';
    }
    /*
     * Translators: To add an additional character subset specific to your language,
     * translate this to 'greek', 'cyrillic' or 'vietnamese'. Do not translate into your own language.
     */
    $subset = _x('no-subset', 'Add new subset (greek, cyrillic, vietnamese)', 'store-wp');
    if ('cyrillic' == $subset) {
        $subsets .= ',cyrillic,cyrillic-ext';
    } elseif ('greek' == $subset) {
        $subsets .= ',greek,greek-ext';
    } elseif ('devanagari' == $subset) {
        $subsets .= ',devanagari';
    }
    if ($fonts) {
        $fonts_url = add_query_arg(array('family' => urlencode(implode('|', $fonts)), 'subset' => urlencode($subsets)), '//fonts.googleapis.com/css');
    }
    return $fonts_url;
}

/**
 * Add contextual help to the Themes and Post edit screens.
 *
 * @since Twenty Fourteen 1.0
 */
function twentyfourteen_contextual_help()
{
    if ('admin_head-edit.php' === current_filter() && 'post' !== $GLOBALS['typenow']) {
        return;
    }
    get_current_screen()->add_help_tab(array('id' => 'twentyfourteen', 'title' => __('Twenty Fourteen', 'twentyfourteen'), 'content' => '<ul>' . '<li>' . sprintf(__('The home page features your choice of up to 6 posts prominently displayed in a grid or slider, controlled by a <a href="%1$s">tag</a>; you can change the tag and layout in <a href="%2$s">Appearance &rarr; Customize</a>. If no posts match the tag, <a href="%3$s">sticky posts</a> will be displayed instead.', 'twentyfourteen'), esc_url(add_query_arg('tag', _x('featured', 'featured content default tag slug', 'twentyfourteen'), admin_url('edit.php'))), admin_url('customize.php'), admin_url('edit.php?show_sticky=1')) . '</li>' . '<li>' . sprintf(__('Enhance your site design by using <a href="%s">Featured Images</a> for posts you&rsquo;d like to stand out (also known as post thumbnails). This allows you to associate an image with your post without inserting it. Twenty Fourteen uses featured images for posts and pages&mdash;above the title&mdash;and in the Featured Content area on the home page.', 'twentyfourteen'), 'https://codex.wordpress.org/Post_Thumbnails#Setting_a_Post_Thumbnail') . '</li>' . '<li>' . sprintf(__('For an in-depth tutorial, and more tips and tricks, visit the <a href="%s">Twenty Fourteen documentation</a>.', 'twentyfourteen'), 'https://codex.wordpress.org/Twenty_Fourteen') . '</li>' . '</ul>'));
}

 public function step_forward($step = 1, $part = '')
 {
     $step++;
     $redirect = add_query_arg(array('page' => 'affiliate-wp-migrate', 'type' => 'wp-affiliate', 'part' => $part, 'step' => $step), admin_url('index.php'));
     wp_redirect($redirect);
     exit;
 }

 /**
  * @see CPAC_Column_Actions::get_actions()
  * @since 2.4.7
  */
 public function get_actions($id)
 {
     $actions = array();
     $user_object = new WP_User($id);
     $screen = get_current_screen();
     if ('site-users-network' == $screen->id) {
         $url = "site-users.php?id={$this->site_id}&";
     } else {
         $url = 'users.php?';
     }
     if (get_current_user_id() == $user_object->ID) {
         $edit_link = 'profile.php';
     } else {
         $edit_link = esc_url(add_query_arg('wp_http_referer', urlencode(stripslashes($_SERVER['REQUEST_URI'])), "user-edit.php?user_id={$user_object->ID}"));
     }
     if (current_user_can('edit_user', $user_object->ID)) {
         $edit = "<strong><a href=\"{$edit_link}\">{$user_object->user_login}</a></strong><br />";
         $actions['edit'] = '<a href="' . $edit_link . '">' . __('Edit') . '</a>';
     } else {
         $edit = "<strong>{$user_object->user_login}</strong><br />";
     }
     if (!is_multisite() && get_current_user_id() != $user_object->ID && current_user_can('delete_user', $user_object->ID)) {
         $actions['delete'] = "<a class='submitdelete' href='" . wp_nonce_url("users.php?action=delete&amp;user={$user_object->ID}", 'bulk-users') . "'>" . __('Delete') . "</a>";
     }
     if (is_multisite() && get_current_user_id() != $user_object->ID && current_user_can('remove_user', $user_object->ID)) {
         $actions['remove'] = "<a class='submitdelete' href='" . wp_nonce_url($url . "action=remove&amp;user={$user_object->ID}", 'bulk-users') . "'>" . __('Remove') . "</a>";
     }
     return $actions;
 }

/**
 * Render Wish List Columns
 *
 * @since 1.0
 * @param string $column_name Column name
 * @param int $post_id Download (Post) ID
 * @return void
 */
function edd_wl_render_admin_columns($column_name, $post_id)
{
    if (get_post_type($post_id) == 'edd_wish_list') {
        $items = get_post_meta(get_the_ID(), 'edd_wish_list', true);
        switch ($column_name) {
            case 'downloads':
                if ($items) {
                    echo count($items);
                } else {
                    echo 0;
                }
                break;
            case 'total':
                echo edd_wl_get_list_total(get_the_ID());
                break;
            case 'list_author':
                $post = get_post();
                if (0 == $post->post_author) {
                    echo __('Guest', 'edd-wish-lists');
                } else {
                    printf('<a href="%s">%s</a>', esc_url(add_query_arg(array('post_type' => $post->post_type, 'author' => get_the_author_meta('ID')), 'edit.php')), get_the_author());
                }
                break;
        }
    }
}

function jetpack_instagram_handler($matches, $atts, $url)
{
    global $content_width;
    static $did_script;
    // keep a copy of the passed-in URL since it's modified below
    $passed_url = $url;
    $max_width = 698;
    $min_width = 320;
    if (is_feed()) {
        $media_url = sprintf('http://instagr.am/p/%s/media/?size=l', $matches[2]);
        return sprintf('<a href="%s" title="%s"><img src="%s" alt="Instagram Photo" /></a>', esc_url($url), esc_attr__('View on Instagram', 'jetpack'), esc_url($media_url));
    }
    $atts = shortcode_atts(array('width' => isset($content_width) ? $content_width : $max_width, 'hidecaption' => false), $atts);
    $atts['width'] = absint($atts['width']);
    if ($atts['width'] > $max_width || $min_width > $atts['width']) {
        $atts['width'] = $max_width;
    }
    // remove the modal param from the URL
    $url = remove_query_arg('modal', $url);
    // force .com instead of .am for https support
    $url = str_replace('instagr.am', 'instagram.com', $url);
    // The oembed endpoint expects HTTP, but HTTP requests 301 to HTTPS
    $instagram_http_url = str_replace('https://', 'http://', $url);
    $instagram_https_url = str_replace('http://', 'https://', $url);
    $url_args = array('url' => $instagram_http_url, 'maxwidth' => $atts['width']);
    if ($atts['hidecaption']) {
        $url_args['hidecaption'] = 'true';
    }
    $url = esc_url_raw(add_query_arg($url_args, 'https://api.instagram.com/oembed/'));
    // Don't use object caching here by default, but give themes ability to turn it on.
    $response_body_use_cache = apply_filters('instagram_cache_oembed_api_response_body', false, $matches, $atts, $passed_url);
    $response_body = false;
    if ($response_body_use_cache) {
        $cache_key = 'oembed_response_body_' . md5($url);
        $response_body = wp_cache_get($cache_key, 'instagram_embeds');
    }
    if (!$response_body) {
        // Not using cache (default case) or cache miss
        $instagram_response = wp_remote_get($url, array('redirection' => 0));
        if (is_wp_error($instagram_response) || 200 != $instagram_response['response']['code'] || empty($instagram_response['body'])) {
            return "<!-- instagram error: invalid oratv resource -->";
        }
        $response_body = json_decode($instagram_response['body']);
        if ($response_body_use_cache) {
            // if caching it is short-lived since this is a "Cache-Control: no-cache" resource
            wp_cache_set($cache_key, $response_body, 'instagram_embeds', HOUR_IN_SECONDS + mt_rand(0, HOUR_IN_SECONDS));
        }
    }
    if (!empty($response_body->html)) {
        if (!$did_script) {
            $did_script = true;
            add_action('wp_footer', 'jetpack_instagram_add_script');
        }
        // there's a script in the response, which we strip on purpose since it's added above
        $ig_embed = preg_replace('@<(script)[^>]*?>.*?</\\1>@si', '', $response_body->html);
    } else {
        $ig_embed = jetpack_instagram_iframe_embed($instagram_https_url, $atts);
    }
    return $ig_embed;
}

 /**
  * Get HTML markup for the post's "avatar" image according conditional
  * fallback model.
  *
  * Accepts an ordered array of named avatar $fallbacks. Also accepts a string
  * of space-separated classes to add to the default classes.
  * @param   Ai1ec_Event $event          The event to get the avatar for
  * @param   array|null  $fallback_order Order of fallback in searching for
  *                                      images, or null to use default
  * @param   string      $classes        A space-separated list of CSS classes
  *                                      to apply to the outer <div> element.
  * @param   boolean     $wrap_permalink Whether to wrap the element in a link
  *                                      to the event details page.
  *
  * @return  string                   String of HTML if image is found
  */
 public function get_event_avatar(Ai1ec_Event $event, $fallback_order = null, $classes = '', $wrap_permalink = true)
 {
     $source = $size = null;
     $url = $this->get_event_avatar_url($event, $fallback_order, $source, $size);
     if (empty($url)) {
         return '';
     }
     $url = esc_attr($url);
     $classes = esc_attr($classes);
     // Set the alt tag (helpful for SEO).
     $alt = $event->get('post')->post_title;
     $location = $this->_registry->get('view.event.location')->get_short_location($event);
     if (!empty($location)) {
         $alt .= ' @ ' . $location;
     }
     $alt = esc_attr($alt);
     $size_attr = $size[0] ? "width=\"{$size['0']}\" height=\"{$size['1']}\"" : "";
     $html = '<img src="' . $url . '" alt="' . $alt . '" ' . $size_attr . ' />';
     if ($wrap_permalink) {
         $permalink = add_query_arg('instance_id', $event->get('instance_id'), get_permalink($event->get('post_id')));
         $html = '<a href="' . $permalink . '">' . $html . '</a>';
     }
     $classes .= ' ai1ec-' . $source;
     $classes .= $size[0] > $size[1] ? ' ai1ec-landscape' : ' ai1ec-portrait';
     $html = '<div class="ai1ec-event-avatar timely ' . $classes . '">' . $html . '</div>';
     return $html;
 }

/**
 * Admin Messages
 *
 * @access      private
 * @since       1.0 
 * @return      void
*/
function edd_admin_messages()
{
    global $typenow;
    if ('download' != $typenow) {
        return;
    }
    $edd_access_level = edd_get_menu_access_level();
    if (isset($_GET['edd-message']) && $_GET['edd-message'] == 'discount_updated' && current_user_can($edd_access_level)) {
        add_settings_error('edd-notices', 'edd-discount-updated', __('Discount code updated.', 'edd'), 'updated');
    }
    if (isset($_GET['edd-message']) && $_GET['edd-message'] == 'discount_update_failed' && current_user_can($edd_access_level)) {
        add_settings_error('edd-notices', 'edd-discount-updated-fail', __('There was a problem updating your discount code, please try again.', 'edd'), 'error');
    }
    if (isset($_GET['edd-message']) && $_GET['edd-message'] == 'payment_deleted' && current_user_can($edd_access_level)) {
        add_settings_error('edd-notices', 'edd-payment-deleted', __('The payment has been deleted.', 'edd'), 'updated');
    }
    if (isset($_GET['edd-message']) && $_GET['edd-message'] == 'email_sent' && current_user_can($edd_access_level)) {
        add_settings_error('edd-notices', 'edd-payment-sent', __('The purchase receipt has been resent.', 'edd'), 'updated');
    }
    if (!get_option('edd_payment_totals_upgraded')) {
        // the payment history needs updated for version 1.1.9
        $url = add_query_arg('edd-action', 'upgrade_payments');
        $upgrade_notice = sprintf(__('The payment history needs updated. %s'), '<a href="' . wp_nonce_url($url, 'edd_upgrade_payments_nonce') . '">' . __('Click to Upgrade', 'edd') . '</a>');
        add_settings_error('edd-notices', 'edd-payments-upgrade', $upgrade_notice, 'error');
    }
    settings_errors('edd-notices');
}

/**
 * Processes gateway select on checkout. Only for users without ajax / javascript
 *
 * @since 1.7
 *
 * @param $data
 */
function edd_process_gateway_select($data)
{
    if (isset($_POST['gateway_submit'])) {
        wp_redirect(add_query_arg('payment-mode', $_POST['payment-mode']));
        exit;
    }
}

/**
 * Append additional parameters to the oEmbed URL
 *
 * @used-by Filter: 'oembed_fetch_url'
 *
 * @param string $provider URL of the oEmbed provider.
 * @param string $url      URL of the content to be embedded.
 * @param array  $args     Optional arguments, usually passed from a shortcode.
 */
function oembed_query_args($provider, $url, $args = [])
{
    if (isset($args['autoplay']) && (bool) $args['autoplay']) {
        $provider = add_query_arg('autoplay', 1, $provider);
    }
    return $provider;
}

 /**
  * Set the path by type
  * @uses add_query_arg()
  * @return MslsAdminIcon
  */
 public function set_path()
 {
     if ('post' != $this->type) {
         $this->path = add_query_arg(array('post_type' => $this->type), $this->path);
     }
     return $this;
 }