note 115558 added to function.flock

"Assigning another value to handle argument in subsequent code will release the lock." Note: this is also true for losing the handle's context completely (like returning from a function, in which the handle was a local variable). <?php touch("testfile"); function mylock() { $F1 = fopen("testfile","r"); if (flock($F1,LOCK_EX|LOCK_NB)) echo "First lock OK\n"; else echo "First lock FAIL\n"; $F2 = fopen("testfile","r"); if (flock($F2,LOCK_EX|LOCK_NB)) echo "Second lock OK\n"; else echo "Second lock FAIL\n"; } mylock(); echo "Function returned.\n"; mylock(); unlink("testfile"); ?> Prints out: First lock OK Second lock FAIL Function returned. First lock OK Second lock FAIL This will lock the testfile, then attempt to lock it again with a new file handle (obviously failing). Trying this again, though, results in proper locking again (and then failing again), because when exiting the function both handles are lost and automatically unlocked. ---- Server IP: 72.52.91.14 Probable Submitter: 83.4.167.65 ---- Manual Page -- http://php.net/manual/en/function.flock.php Edit -- https://master.php.net/note/edit/115558 Del: integrated -- https://master.php.net/note/delete/115558/integrated Del: useless -- https://master.php.net/note/delete/115558/useless Del: bad code -- https://master.php.net/note/delete/115558/bad+code Del: spam -- https://master.php.net/note/delete/115558/spam Del: non-english -- https://master.php.net/note/delete/115558/non-english Del: in docs -- https://master.php.net/note/delete/115558/in+docs Del: other reasons-- https://master.php.net/note/delete/115558 Reject -- https://master.php.net/note/reject/115558 Search -- https://master.php.net/manage/user-notes.php