Description:
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When using stream_set_timeout() to set a timeout on a stream it is documented that you need to check stream_get_meta_data() to see if the stream timed out. However, the behaviour of fgets/fread (in blocking mode) when the socket times out is not documented.

At first, I assumed that the time out would be considered a "failure", which is documented in both fread and fgets as returning FALSE.

However, after testing, it appears that both methods return an empty string when the socket times out. This is fine, because you can check to see if this was because of an EOF (using feof) or a timeout (stream_get_meta_data) after the method has returned.

The only problem here is a lack of descriptive documentation. The behaviour of blocking read functions when the stream times out needs to be documented as this is a common scenario when working with socket streams.

Regards,

Nicholas Telford