PHP Intval（）异常行为

Question

I am currently trying to resolve a problem with changing the type of a variable in order to be able to do math operations with it. I am trying to enhance a Wordpress plugin called "WooCommerce PDF Invoices & Packing Slips".

There is a variable $item['order_price'] , which contains a price with a currency sign. var_dump() of this variable returns string(48)"709 Kč" . When I try to get the integer value using either intval() or casting it via (int) , it returns 0 .

What could be the solution?

Answer 1

你试一试

filter_var($item['order_price'], FILTER_SANITIZE_NUMBER_INT);

Answer 2

我建议您至少使用：trim（$ item ['order_price']）;