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Solution to php socket garbled code: First check the encoding of the error message through the "mb_detect_encoding(socket_last_error($socket))" method; then convert the error message to "UTF-8" encoding.
PHP writing socket error message garbled problem
Problem
Because the default of PHP project is The UTF-8 encoding is used. Since the error message when using socket programming is not the UTF-8 encoding used, the output errors are displayed in garbled characters on the browser and console.
The error message is as follows:
socket_connect(): unable to connect [10061]: ����Ŀ����������ܾ��������ӡ�
Processing process
1. First, check the encoding of the error message through the following code
mb_detect_encoding(socket_last_error($socket))
The result is output as ASCII .
2. From the check results in the first step, we know that the encoding of the error message is not UTF-8, so the error message needs to be converted to UTF-8 encoding. This can be achieved through the following function:
function doEncoding($str){ $encode = strtoupper(mb_detect_encoding($str, ["ASCII",'UTF-8',"GB2312","GBK",'BIG5'])); if($encode!='UTF-8'){ $str = mb_convert_encoding($str, 'UTF-8', $encode); } return $str; }
After this code conversion, the output result is normal
socket_connect() failed. Reason: The connection cannot be made because the target computer actively refuses.
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