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# socket_fd_isset

(PHP 4 >= 4.1.0)

socket_fd_isset -- Checks to see if a file descriptor is set within the file descrirptor set

## Description

``bool socket_fd_isset` (resource set, resource socket)`

Warning
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change in a future release of PHP without notice. Be warned and use this function at your own risk.

Warning
This function is currently not documented, only the argument list is available.

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