Helper for saving queries when using ACF in WordPress

helpers.php

<?php

	// get field function for ACF without using ACF and generating additional queries (normally)
	function get( $selector, $post_id = false, $format_value = true ) {

		if( function_exists( 'get_post_meta' ) && function_exists( 'acf_get_valid_post_id' ) ) {

			$post_id = acf_get_valid_post_id( $post_id );

			// Search the data in post meta
			$data = get_post_meta( $post_id, $selector, $format_value );

			// If there is no data AND the post_id contains widget, search in option.
			// WARNING! This generates queries per request!!
			if( $data === false && strpos( $post_id, 'widget' ) !== false )
				$data = maybe_unserialize( get_option( $post_id . '_' . $selector ) );

			return $data;

		} else {

			echo '<!-- ERROR get(): ACF not found. Please install. -->';

		}

	}