(PHP 4, PHP 5, PHP 7, PHP 8)

pfsockopenOpen persistent Internet or Unix domain socket connection


    string $hostname,
    int $port = -1,
    int &$error_code = null,
    string &$error_message = null,
    ?float $timeout = null
): resource|false

This function behaves exactly as fsockopen() with the difference that the connection is not closed after the script finishes. It is the persistent version of fsockopen().


For parameter information, see the fsockopen() documentation.

Return Values

pfsockopen() returns a file pointer which may be used together with the other file functions (such as fgets(), fgetss(), fwrite(), fclose(), and feof()), or false on failure.


Version Description
8.0.0 timeout is nullable now.

See Also

  • fsockopen() - Open Internet or Unix domain socket connection