Returns numeric file descriptor of a socket, or stream

# EventUtil::getSocketFd

(PECL event >= 1.7.0)

EventUtil::getSocketFd — Returns numeric file descriptor of a socket, or stream

### Description

public static EventUtil::getSocketFd( mixed `$socket` ): int

Returns numeric file descriptor of a socket or stream specified by `socket` argument just like the `Event` extension does it internally for all methods accepting socket resource or stream.

### Parameters

`socket`

  Socket resource or stream.

### Return Values

Returns numeric file descriptor of a socket, or stream. EventUtil::getSocketFd() returns `false` in case if it is whether failed to recognize the type of the underlying file, or detected that the file descriptor associated with `socket` is not valid.

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