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Home php教程 php手册 PHP Error 和 Logging 函数

PHP Error 和 Logging 函数

Jun 21, 2016 am 08:53 AM
error handler logging set

PHP Error 和 Logging 简介

error 和 logging 函数允许你对错误进行处理和记录。

error 函数允许用户定义错误处理规则,并修改记录错误的方式。

logging 函数允许用户对应用程序进行日志记录,并把日志消息发送到电子邮件、系统日志或其他的机器。

PHP Error 和 Logging 函数

PHP:指示支持该函数的最早的 PHP 版本。

函数 描述 PHP
debug_backtrace() 生成 backtrace。 4
debug_print_backtrace() 输出 backtrace。 5
error_get_last() 获得最后发生的错误。 5
error_log() 向服务器错误记录、文件或远程目标发送一个错误。 4
error_reporting() 规定报告哪个错误。 4
restore_error_handler() 恢复之前的错误处理程序。 4
restore_exception_handler() 恢复之前的异常处理程序。 5
set_error_handler() 设置用户自定义的错误处理函数。 4
set_exception_handler() 设置用户自定义的异常处理函数。 5
trigger_error() 创建用户自定义的错误消息。 4
user_error() trigger_error() 的别名。

4

1、 set_error_handler() 函数

定义和用法

set_error_handler() 函数设置用户自定义的错误处理函数。

该函数用于创建运行时期间的用户自己的错误处理方法。

该函数会返回旧的错误处理程序,若失败,则返回 null。

语法

set_error_handler(error_function,error_types)
Copy after login
参数 描述
error_function 必需。规定发生错误时运行的函数。
error_types 可选。规定在哪个错误报告级别会显示用户定义的错误。默认是 "E_ALL"。



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