php中error_reporting函数用法详解_PHP教程-php教程-PHP中文网

php中error_reporting函数用法详解_PHP教程

php中文网

发布： 2016-07-13 17:00:11

原创

1428人浏览过

在php中error_reporting是设置 php 的报错级别并返回当前级别，我们可以根据不同级别来设置是不给出错误提示域外出错时是否向往执行程序，下面我来介绍error_reporting()用法与参数。

基本信息

E_NOTICE 表示一般情形不记录，只有程序有错误情形时才用到，例如企图存取一个不存在的变量，或是呼叫 stat() 函数检视不存在的文件。
E_WARNING 通常都会显示出来，但不会中断程序的执行。这对除错很有效。例如：用有问题的正则表达式呼叫 ereg()。
E_ERROR 通常会显示出来，亦会中断程序执行。意即用这个遮罩无法追查到内存配置或其它的错误。
E_PARSE 从语法中解析错误。
E_CORE_ERROR 类似 E_ERROR，但不包括 PHP 核心造成的错误。
E_CORE_WARNING 类似 E_WARNING，但不包括 PHP 核心错误警告。

例子:

error_reporting = E_ALL & ~E_NOTICE ; 显示所有的错误，除了提醒
error_reporting = E_COMPILE_ERROR|E_ERROR|E_CORE_ERROR ; 仅显示错

error_reporting=E_ERROR :只会报告致命性错误

基本上设置

法语写作助手

法语助手旗下的AI智能写作平台，支持语法、拼写自动纠错，一键改写、润色你的法语作文。

查看详情

error_reporting = E_ALL & ~E_NOTICE ; 显示所有的错误，除了提醒

例子

代码如下

复制代码

error_reporting(0);

// Report simple running errors
error_reporting(E_ERROR | E_WARNING | E_PARSE);

// Reporting E_NOTICE can be good too (to report uninitialized
// variables or catch variable name misspellings ...)
error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);

// Report all errors except E_NOTICE
// This is the default value set in php.ini
error_reporting(E_ALL ^ E_NOTICE);

// Report all PHP errors (bitwise 63 may be used in PHP 3)
error_reporting(E_ALL);

// Same as error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);

整数。表示旧的PHP的错误级别。(Returns the old error_reporting level.)
手册上的例子：

Value	Constant	Description	Note
1	`E_ERROR` (integer)	Fatal run-time errors. These indicate errors that can not be recovered from, such as a memory allocation problem. Execution of the script is halted.
2	`E_WARNING` (integer)	Run-time warnings (non-fatal errors). Execution of the script is not halted.
4	`E_PARSE` (integer)	Compile-time parse errors. Parse errors should only be generated by the parser.
8	`E_NOTICE` (integer)	Run-time notices. Indicate that the script encountered something that could indicate an error, but could also happen in the normal course of running a script.
16	`E_CORE_ERROR` (integer)	Fatal errors that occur during PHP’s initial startup. This is like an `E_ERROR`, except it is generated by the core of PHP.	since PHP 4
32	`E_CORE_WARNING` (integer)	Warnings (non-fatal errors) that occur during PHP’s initial startup. This is like an `E_WARNING`, except it is generated by the core of PHP.	since PHP 4
64	`E_COMPILE_ERROR` (integer)	Fatal compile-time errors. This is like an `E_ERROR`, except it is generated by the Zend Scripting Engine.	since PHP 4
128	`E_COMPILE_WARNING` (integer)	Compile-time warnings (non-fatal errors). This is like an `E_WARNING`, except it is generated by the Zend Scripting Engine.	since PHP 4
256	`E_USER_ERROR` (integer)	User-generated error message. This is like an `E_ERROR`, except it is generated in PHP code by using the PHP function trigger_error().	since PHP 4
512	`E_USER_WARNING` (integer)	User-generated warning message. This is like an `E_WARNING`, except it is generated in PHP code by using the PHP function trigger_error().	since PHP 4
1024	`E_USER_NOTICE` (integer)	User-generated notice message. This is like an `E_NOTICE`, except it is generated in PHP code by using the PHP function trigger_error().	since PHP 4
2048	`E_STRICT` (integer)	Run-time notices. Enable to have PHP suggest changes to your code which will ensure the best interoperability and forward compatibility of your code.	since PHP 5
4096	`E_RECOVERABLE_ERROR` (integer)	Catchable fatal error. It indicates that a probably dangerous error occured, but did not leave the Engine in an unstable state. If the error is not caught by a user defined handle (see also set_error_handler()), the application aborts as it was an `E_ERROR`.	since PHP 5.2.0
8191	`E_ALL` (integer)	All errors and warnings, as supported, except of level `E_STRICT` in PHP	6143 in PHP 5.2.x and 2047 previously

大家都在看：

php网站怎么部署到vps服务器_php网站vps服务器部署流程与安全设置教程 php配置如何开启OPcache加速_php配置字节码缓存的有效方法 php程序怎么部署到phalcon框架_php程序phalcon框架部署与运行配置教程 PHP如何实现用户登录_PHP用户登录功能的实现步骤与代码示例 php框架怎样进行表单验证_php框架表单验证的最佳实践