php - Woocommerce add or hide shipping method based on category -

i want remove or add shipping options depending on category of product in cart. example: have 1 product category x , want add shipping-method-x cart. , if have 1 product category x , 1 category, shipping-method-x disabled. function below checks if array contains category id=49 , if there category, doesn't work. nothing happens in cart :( please help

add_filter( 'woocommerce_package_rates', 'hide_shipping_based_on_tag' ,    10, 1 );  function check_cart_for_share() {  global $woocommerce; $cart = $woocommerce->cart->cart_contents;  $found = false;    foreach ($woocommerce->cart->cart_contents $key => $values ) {         $terms = get_the_terms( $values['product_id'], 'product_cat' );          $tmp = array();          foreach ($terms $term) {              array_push($tmp, $term->term_id);          }         array_unique($tmp);          if (sizeof($tmp) > 1 , in_array('49', $tmp)) {          $found = true;   } }  return $found;  }  function hide_shipping_based_on_tag( $available_methods ) {  // use function above check cart categories. if ( check_cart_for_share() ) {      // remove method want     unset( $available_methods['flat_rate'] ); }  // return available methods without 1 unset. return $available_methods;  } 

likely product in single category id of 49 makes if statement invalid. should check 0 or more entries.

if (sizeof($tmp) > 0 && in_array('49', $tmp)) {  \\... in array