array( 'theme_instagram_image_1' => 'https://example.com/wp-content/uploads/2026/01/abandoned-phone-booth-night.jpg', 'theme_hero_image' => 32927, 'custom_logo' => '41', 'posts_columns' => 3, 'footer_html' => '

', 'nav_menu_locations' => array( 'primary' => 7 ), ), 'theme_mods_twentytwentyfive' => array( 'header_image_data' => (object) array( 'attachment_id' => 12, 'url' => 'https://example.com/wp-content/uploads/old-header.jpg' ) ), ); require __DIR__ . '/../classes/core.php'; class Probe extends Meow_WPMC_Core { function normalize_upload_relative_path( $path ) { return $path; } function get_urls_from_html( $html ) { preg_match_all( '/src="([^"]+)"/', $html, $m ); return array_map( array( $this, 'clean_url' ), $m[1] ); } } $p = ( new ReflectionClass( 'Probe' ) )->newInstanceWithoutConstructor(); $prop = new ReflectionProperty( 'Meow_WPMC_Core', 'upload_url' ); $prop->setValue( $p, 'https://example.com/wp-content/uploads' ); $ids = array(); $urls = array(); ( new ReflectionMethod( 'Meow_WPMC_Core', 'get_images_from_theme_mods' ) )->invokeArgs( $p, array( &$ids, &$urls ) ); sort( $ids ); assert( in_array( '2026/01/abandoned-phone-booth-night.jpg', $urls ), 'a Customizer Image control (URL) is a reference' ); assert( in_array( '2025/05/footer.png', $urls ), 'images inside HTML theme mods are references' ); assert( in_array( 'old-header.jpg', $urls ), 'an inactive theme still keeps its images' ); assert( $ids === array( 12, 41, 32927 ), 'IDs only under image-like keys, not column counts or menus: ' . json_encode( $ids ) ); echo "ok\n";