[int$port = -1],
[float|null$timeout = null]
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.
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.
|8.0.0||timeout is nullable now.|