flock() - how does this baby work?

Looking to lock a file. I acquire the lock twice here, and both times it's exclusive. Am I missing something here? Does the second flock have to be on a different file handle? Creating $fp2 pointing to the same file and then trying to acquire an exclusive lock seemed to block, even with operation set to 6. <? $fp = fopen("test", "w+"); if(flock($fp, 2)) echo "locked"; if(flock($fp, 2)) echo "locked"; ?> Output is two locked statements instead of the one I expected. August