PHP 的 error_log() 与 syslog() [英] PHP's error_log() vs syslog()

问题描述

我正在尝试决定使用什么功能来记录到自定义文件.

I'm trying to decide what functionality to use for logging to a custom file.

背景
我们有几个 PHP 进程，都以 Apache(mod_php)和 Deamons(CLI，分叉)的形式运行.我希望能够为每个要写入的进程/任务指定一个日志文件.对于作为守护进程的 Apache 进程，多个进程将写入同一个文件.

Background
We have several PHP processes, both running as Apaches (mod_php) and as Deamons (CLI, forked). I would like to be able to specify a log file per process/task to write to. For both the Apache processes as the Deamons, multiple processes will be writing to the same file.

选项
PHP 提供 error_log() 和 syslog().两者似乎都提供或多或少相同的功能.

Options
PHP offers both error_log() and syslog(). Both seem to offer more or less the same functionality.

我的问题

• 这些功能的优缺点是什么?
• 选择哪一个?(为什么?)
• 如果我放弃多个文件的要求会怎样?

推荐答案

syslog 将消息发送到 OS 记录器，而 error_log 有多个选项，要么发送到 OS记录器、电子邮件、文件或 SAPI 日志记录处理程序，如文档中所述.

syslog sends the message to the OS logger, while error_log has multiple options, either to the OS logger, to an email, to a file, or to the SAPI logging handler, as is stated in the documentation.

既然你说你想写多个日志，我推荐 error_log 和 $message_type = 3，它可以让你将消息添加到文件集$destination 参数.

Since you say yo want to write on multiple logs, I'd recommend error_log with $message_type = 3, wich lets you add messages to the file set in the $destination parameter.

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