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Microsoft Security Advisory (2501696): Vulnerability in MHTML Could Allow Information Disclosure - 1
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STREAMWRAPPER.STREAM_LOCK(3) 1 STREAMWRAPPER.STREAM_LOCK(3) streamWrapper::stream_lock - Advisory file locking SYNOPSIS
public bool streamWrapper::stream_lock (int $operation) DESCRIPTION
This method is called in response to flock(3), when file_put_contents(3) (when $flags contains LOCK_EX), stream_set_blocking(3) and when closing the stream ( LOCK_UN). PARAMETERS
o $operation -$operation is one of the following: o LOCK_SH to acquire a shared lock (reader). o LOCK_EX to acquire an exclusive lock (writer). o LOCK_UN to release a lock (shared or exclusive). o LOCK_NB if you don't want flock(3) to block while locking. (not supported on Windows) RETURN VALUES
Returns TRUE on success or FALSE on failure. ERRORS
/EXCEPTIONS Emits E_WARNING if call to this method fails (i.e. not implemented). SEE ALSO
stream_set_blocking(3), flock(3). PHP Documentation Group STREAMWRAPPER.STREAM_LOCK(3)
