WC Search Orders By Product

Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: "$content".

The $domain parameter must be a single text string literal. Found: wc_search_orders_by_product()->text_domain

The $domain parameter must be a single text string literal. Found: wc_search_orders_by_product()->text_domain

The $domain parameter must be a single text string literal. Found: wc_search_orders_by_product()->text_domain

Missing $domain parameter in function call to _e().

All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.

Missing $domain parameter in function call to _e().

All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.

Unescaped parameter $query used in $wpdb->get_col($query)\n$query assigned unsafely at line 233:\n $query = "\n\t\t\tSELECT DISTINCT order_id\n\t\t\tFROM $table\n\t\t\tWHERE order_id IN ( $order_id_list )\n\t\t\tAND product_id IN ( $product_id_list )\n\t\t"\n$table assigned unsafely at line 231:\n $table = $wpdb->prefix . 'wc_order_product_lookup'\n$order_id_list assigned unsafely at line 227:\n $order_id_list = self::get_sanitized_id_list($order_ids)\n$product_id_list assigned unsafely at line 228:\n $product_id_list = self::get_sanitized_id_list($product_ids)\n$order_ids used without escaping.\n$product_ids used without escaping.

Use placeholders and $wpdb->prepare(); found $query