Hello php-general, This also does not work: flock.php <? $file_name = '/home/sitnikov/tmp/flock.txt'; if ($fd = fopen($file_name,'a+')){ for($i=0;$i<1000;$i++){ if (flock($fd,LOCK_EX)){ fseek($fd,0,SEEK_END); fwrite($fd,$i.' : '.$i."\n"); flock($fd,LOCK_UN); usleep(5); }else{ die('Can not lock file'); } } fclose($fd); }else{ echo 'Can not open file'; } ?> Best regards, Andrew Sitnikov e-mail : [EMAIL PROTECTED] GSM: (+372) 56491109 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]