get_previous_posts_link()

get_previous_posts_link( string $label = null ): string|null

function get_previous_posts_link( $label = null ) {
	global $paged;

	if ( null === $label ) {
		$label = __( '« Previous Page' );
	}

	if ( ! is_single() && $paged > 1 ) {
		/**
		 * Filters the anchor tag attributes for the previous posts page link.
		 *
		 * @since 2.7.0
		 *
		 * @param string $attributes Attributes for the anchor tag.
		 */
		$attr = apply_filters( 'previous_posts_link_attributes', '' );

		return sprintf(
			'<a href="%1$s" %2$s>%3$s</a>',
			previous_posts( false ),
			$attr,
			preg_replace( '/&([^#])(?![a-z]{1,8};)/i', '&$1', $label )
		);
	}
}