比较您选择的

                    array(8) {
  [18]=>
  string(53) "https://www.siglent.com/products/oscilloscope/filter/"
  [22]=>
  string(58) "https://www.siglent.com/products/spectrum_analyzer/filter/"
  [21]=>
  string(54) "https://www.siglent.com/products/arb_generator/filter/"
  [1008]=>
  string(32) "https://www.siglent.com/product/"
  [23]=>
  string(44) "https://www.siglent.com/products/vna/filter/"
  [24]=>
  string(53) "https://www.siglent.com/products/rf-generator/filter/"
  [25]=>
  string(53) "https://www.siglent.com/products/power_supply/filter/"
  [27]=>
  string(51) "https://www.siglent.com/products/multimeter/filter/"
}