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функция не описана

WP_Theme::get_screenshot() WP 3.4.0

Returns the main screenshot file for the theme.

The main screenshot is called screenshot.png. gif and jpg extensions are also allowed.

Screenshots for a theme must be in the stylesheet directory. (In the case of child themes, parent theme screenshots are not inherited.)

Это метод класса: WP_Theme

Хуков нет.

Возвращает

Строку/false. Screenshot file. False if the theme does not have a screenshot.

Использование

$WP_Theme = new WP_Theme();
$var = $WP_Theme->get_screenshot( $uri );
$uri(строка)
Type of URL to return, either 'relative' or an absolute URI.
По умолчанию: absolute URI

Код WP Theme::get screenshot: wp-includes/class-wp-theme.php WP 5.2

<?php
public function get_screenshot( $uri = 'uri' ) {
	$screenshot = $this->cache_get( 'screenshot' );
	if ( $screenshot ) {
		if ( 'relative' == $uri ) {
			return $screenshot;
		}
		return $this->get_stylesheet_directory_uri() . '/' . $screenshot;
	} elseif ( 0 === $screenshot ) {
		return false;
	}

	foreach ( array( 'png', 'gif', 'jpg', 'jpeg' ) as $ext ) {
		if ( file_exists( $this->get_stylesheet_directory() . "/screenshot.$ext" ) ) {
			$this->cache_add( 'screenshot', 'screenshot.' . $ext );
			if ( 'relative' == $uri ) {
				return 'screenshot.' . $ext;
			}
			return $this->get_stylesheet_directory_uri() . '/' . 'screenshot.' . $ext;
		}
	}

	$this->cache_add( 'screenshot', 0 );
	return false;
}