WP_Styles::_css_href( string $src, string $ver, string $handle ): string

Source

public function _css_href( $src, $ver, $handle ) {
	if ( ! is_bool( $src ) && ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && str_starts_with( $src, $this->content_url ) ) ) {
		$src = $this->base_url . $src;
	}

	if ( ! empty( $ver ) ) {
		$src = add_query_arg( 'ver', $ver, $src );
	}

	/**
	 * Filters an enqueued style's fully-qualified URL.
	 *
	 * @since 2.6.0
	 *
	 * @param string $src    The source URL of the enqueued style.
	 * @param string $handle The style's registered handle.
	 */
	$src = apply_filters( 'style_loader_src', $src, $handle );
	return esc_url( $src );
}

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