哈希空间 Ctrl + F 进行搜索
首页 php手册中文版 CSS中文手册 哈希文档 Markdown在线工具

syslog

(PHP 4, PHP 5, PHP 7, PHP 8)

syslogGenerate a system log message

说明

syslog(int $priority, string $message): bool

syslog() generates a log message that will be distributed by the system logger.

For information on setting up a user defined log handler, see the syslog.conf (5) Unix manual page. More information on the syslog facilities and option can be found in the man pages for syslog (3) on Unix machines.

参数

priority

priority is a combination of the facility and the level. Possible values are:

syslog() Priorities (in descending order)
Constant Description
LOG_EMERG system is unusable
LOG_ALERT action must be taken immediately
LOG_CRIT critical conditions
LOG_ERR error conditions
LOG_WARNING warning conditions
LOG_NOTICE normal, but significant, condition
LOG_INFO informational message
LOG_DEBUG debug-level message
message

The message to send.

返回值

成功时返回 true, 或者在失败时返回 false

范例

示例 #1 Using syslog()

<?php
// open syslog, include the process ID and also send
// the log to standard error, and use a user defined
// logging mechanism
openlog("myScriptLog"LOG_PID LOG_PERRORLOG_LOCAL0);

// some code

if (authorized_client()) {
    
// do something
} else {
    
// unauthorized client!
    // log the attempt
    
$access date("Y/m/d H:i:s");
    
syslog(LOG_WARNING"Unauthorized client: $access {$_SERVER['REMOTE_ADDR']} ({$_SERVER['HTTP_USER_AGENT']})");
}

closelog();
?>

注释

On Windows, the syslog service is emulated using the Event Log.

注意:

Use of LOG_LOCAL0 through LOG_LOCAL7 for the facility parameter of openlog() is not available in Windows.

参见

打开 哈希空间 微信小程序中查看更佳