Custom Graphflow Shortcode using Code Snippets Plugin

call_graphflow_shortcode_in_snippet.php

add_shortcode('graphflow_shortcode_demo', 'graphflow_shortcode_demo_display');
function graphflow_shortcode_demo_display($attr) {
  ob_start();
  if ( isset( $_REQUEST['cat'] ) ) {
	$cat_id = $_REQUEST['cat'];
	$term = get_term_by( 'id', $cat_id, 'product_cat', 'ARRAY_A' );
	$cat_name = $term['name'];
	echo do_shortcode( '[graphflow_recommendations title="Recommended for you in ' . $cat_name . '" columns=4 per_page=4 product_cat=' . $cat_id . ']' ); 
  } else {
	echo do_shortcode( '[graphflow_recommendations columns=4 per_page=4]' );
  }

  
  echo '<form id="category-select" class="category-select" action="' . esc_url( home_url( '/' ) ) . '" method="get">';
  wp_dropdown_categories( array( 'taxonomy' => 'product_cat' ) );
  echo '<input type="submit" name="submit" value="Get Recommendations in Category"/><input type="hidden" name="page_id" value="6774" /></form>';
  return ob_get_clean();
}