PHP XML Xpath get price lower than doesn't work

Question

<Product>
  <Price>
   <SalePrice>
      14,95
   </SalePrice>
  </Price>
</Product>  
<Product>
  <Price>
   <SalePrice>
     16,95
   </SalePrice>
  </Price>
</Product>



$response->xpath('Product/Price/[SalePrice <= "16,95"]/parent::*

Hello, i wanna get every Sale Price equals or lower than 16,95 as it is in my example. But everytime i try, it gives a empty array. If i only use:

$response->xpath('Product/Price/[SalePrice = "16,95"]/parent::*

i got a result. I hope you can help me with this problem. Thanks

Answer 1

1. translate comma to point to get correct float number
2. convert string to number

3. compare result with float number but not string

   //Product/Price/SalePrice[number(translate(.,',','.'))<= 16.95]/parent::*

demo on eval