高并发下PHP写文件日志丢失
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2022-04-10 12:36:48
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php代码:
<?php /** * Created by PhpStorm. * User: andyfeng * Date: 2015/6/24 * Time: 13:31 */ class LogFileUtil { public static $fileHandlerCache; private static $initFlag = false; private static $MAX_LOOP_COUNT = 3; private static function init() { self::$initFlag = true; register_shutdown_function(array("LogFileUtil", "shutdown_func")); } /** * 输出到文件日志 * @param $filePath 文件路径 * @param $msg 日志信息 * @return int */ public static function out($filePath, $msg) { if (!self::$initFlag) { self::init(); } return self::internalOut($filePath, $msg); } /** * @param $filePath * @param $msg * @param $loop * @return int */ private static function internalOut($filePath, $msg, $loop = 0) { //以防一直添加失败造成死循环 if ($loop > self::$MAX_LOOP_COUNT) { $result = 0; } else { $loop++; $fp = self::$fileHandlerCache["$filePath"]; if (empty($fp)) { $fp = fopen($filePath, "a+"); self::$fileHandlerCache[$filePath] = $fp; } if (flock($fp, LOCK_EX)) { $result = fwrite($fp, $msg); flock($fp, LOCK_UN); } else { $result = self::internalOut($filePath, $msg, $loop); } } return $result; } function shutdown_func() { if (!empty(LogFileUtil::$fileHandlerCache)) { if (is_array(LogFileUtil::$fileHandlerCache)) { foreach (LogFileUtil::$fileHandlerCache as $k => $v) { if (is_resource($v)) //file_put_contents("close.txt",$k); fclose($v); } } } } }
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