Encoding-phpcp936 to utf8

I want to capture this webpage info. xitek. comnews, but the obtained source code is garbled. icov and mb_convert_encoding cannot be converted. later, the encoding of this webpage on Baidu is CP936, or it cannot be converted to UTF8 Format Encoding. php garbled code

I want to crawl this web http://info.xitek.com/news/

However, the source code is garbled.

Neither icov nor mb_convert_encoding can be converted.

Later, Baidu coded the webpage CP936.

Still cannot be converted to UTF8 format