Var_dump ($sphinx) return Err_empty_response

$sphinx =new sphinxclient ();
Var_dump ($sphinx);
Return:

The other methods of the Sphinxclient class can be used normally, but also can match to the result, that is, this problem, before the problem, reinstall it once again (CentOS7), where is the configuration problem?
The solution, thank you, gentlemen.

Reply content:

$sphinx =new sphinxclient ();
Var_dump ($sphinx);
Return:

The other methods of the Sphinxclient class can be used normally, but also can match to the result, that is, this problem, before the problem, reinstall it once again (CentOS7), where is the configuration problem?
The solution, thank you, gentlemen.

In the face of such an unpredictable problem, the correct approach should be to find the PHP error log, log will be written very clearly
PHP Error Handling

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