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php Programming Glossary: lock_unPHP loop acting as cronjob[ensure only one instance running] http://stackoverflow.com/questions/1780823/php-loop-acting-as-cronjobensure-only-one-instance-running 0 truncate file fwrite fp Write something here n flock fp LOCK_UN release the lock else echo Couldn't get the lock fclose fp So..
http://stackoverflow.com/questions/2921469/php-mutual-exclusion-mutex f return false if flock f LOCK_SH ret fread f 8192 flock f LOCK_UN fclose f return ret fclose f return false function updateStatus.. if flock f LOCK_EX ftruncate f 0 fwrite f new flock f LOCK_UN fclose f return true fclose f return false function incrementStatus.. f 8192 current ftruncate f 0 fwrite f current flock f LOCK_UN fclose f return true fclose f return false share improve this..
best way to obtain a lock in php http://stackoverflow.com/questions/325806/best-way-to-obtain-a-lock-in-php unlock key this key if this own TRUE if flock this file LOCK_UN failed error_log ExclusiveLock lock FAILED to release lock..
should LOCK_EX on both read & write be atomic? http://stackoverflow.com/questions/4899737/should-lock-ex-on-both-read-write-be-atomic f LOCK_EX sleep 10 fseek f 0 var_dump fgets f 4048 flock f LOCK_UN fclose f And while it's sleeping call this f fopen 'test.txt'.. f LOCK_EX sleep 10 fseek f 0 var_dump fgets f 4048 flock f LOCK_UN fclose f In file2.php var_dump file_get_contents 'test.txt'..
PHP - Preventing collision in Cron - File lock safe? http://stackoverflow.com/questions/5428631/php-preventing-collision-in-cron-file-lock-safe LOCK_EX LOCK_NB do an exclusive lock do the work flock fp LOCK_UN release the lock else echo Couldn't get the lock fclose fp Credits..
Atomically appending a line to a file and creating it if it doesn't exist http://stackoverflow.com/questions/9096470/atomically-appending-a-line-to-a-file-and-creating-it-if-it-doesnt-exist 'Cannot lock file '. file fwrite fp data if lock flock fp LOCK_UN fclose fp It works OK but it seems to be a quite complex. Is..
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