Using WordPress ‘get_site_icon_url’ PHP function

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get_site_icon_url() is a WordPress PHP function that retrieves the Site Icon URL for a specific blog or the current blog, with a fallback URL if no site icon is found.

Usage

$site_icon_url = get_site_icon_url($size, $url, $blog_id);
// your custom code here
return $site_icon_url;

Parameters

  • $size (int) Optional: Size of the site icon in pixels. Default is 512.
  • $url (string) Optional: Fallback URL if no site icon is found. Default is an empty string (”).
  • $blog_id (int) Optional: ID of the blog to get the site icon for. Default is the current blog.

More information

See WordPress Developer Resources: get_site_icon_url()

Examples

Get Site Icon URL of the Current Blog

Retrieve the site icon URL for the current blog with a default size of 512 pixels.

$site_icon_url = get_site_icon_url();
echo 'Site Icon URL: ' . $site_icon_url;

Get Site Icon URL with Custom Size

Retrieve the site icon URL for the current blog with a custom size of 128 pixels.

$size = 128;
$site_icon_url = get_site_icon_url($size);
echo 'Site Icon URL (128px): ' . $site_icon_url;

Get Site Icon URL with Fallback Image

Retrieve the site icon URL for the current blog with a fallback image URL.

$fallback_url = 'https://example.com/fallback-image.png';
$site_icon_url = get_site_icon_url(512, $fallback_url);
echo 'Site Icon URL: ' . $site_icon_url;

Get Site Icon URL for a Specific Blog

Retrieve the site icon URL for a specific blog with ID 2.

$blog_id = 2;
$site_icon_url = get_site_icon_url(512, '', $blog_id);
echo 'Site Icon URL (Blog ID 2): ' . $site_icon_url;

Get Site Icon URL with Custom Size and Fallback Image

Retrieve the site icon URL for the current blog with a custom size of 128 pixels and a fallback image URL.

$size = 128;
$fallback_url = 'https://example.com/fallback-image.png';
$site_icon_url = get_site_icon_url($size, $fallback_url);
echo 'Site Icon URL (128px): ' . $site_icon_url;