php实现的简单日志写入函数

function log( $logthis ){file_put_contents('logfile.log', date("Y-m-d H:i:s"). " " . $logthis. "/r/n", FILE_APPEND | LOCK_EX);}// use /r/n for new line on windows, just /n on linux// PHP_EOL cross platform solution for new line// // so better to use thisfunction log( $logthis ){file_put_contents('logfile.log', date("Y-m-d H:i:s"). " " . $logthis.PHP_EOL, FILE_APPEND | LOCK_EX);}