How to use php error_reporting function

The error_reporting() function is used to set the error reporting level of the current script and specify what kind of PHP errors are reported. The syntax is error_reporting(report_level), which returns the old error reporting level.

How to use the php error_reporting() function?

The error_reporting() function sets the error reporting level of the current script and specifies what kind of PHP errors are reported.

This function can set the error_reporting directive at runtime.

PHP has many error levels. Use this function to set the level when the script is running. If the optional level argument is not set, error_reporting() simply returns the current error reporting level.

Syntax

error_reporting(report_level)

Parameters:

● Level: Optional. Specifies the new error_reporting level. Can be a bitmask or a named constant.

Note: It is strongly recommended to use named constants to ensure compatibility with future versions. Due to the addition of error levels and the increase in the range of integer values, older integer-based error levels will not always behave as expected.

The available error level constants and their actual meanings are described in predefined constants.

Reporting level

Return value: Return the old error reporting (error_reporting) level, or in Returns the current level when the level argument is not given.

Let’s take a look at how to use the php error_reporting() function through an example.

Example:Specify different error level reporting

<?php
 // 关闭错误报告
 error_reporting(0);
 // 报告 runtime 错误
 error_reporting(E_ERROR | E_WARNING | E_PARSE);
 // 报告所有错误
 error_reporting(E_ALL);
 // 等同 error_reporting(E_ALL);
 ini_set("error_reporting", E_ALL);
 // 报告 E_NOTICE 之外的所有错误
 error_reporting(E_ALL & ~E_NOTICE);
?>

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