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# error_reporting

(PHP 4, PHP 5)

error_reporting — Sets which PHP errors are reported

### 설명

int error_reporting ([ int `$level` ] )

The error_reporting() function sets the error_reporting directive at runtime. PHP has many levels of errors, using this function sets that level for the duration (runtime) of your script.

### 인수

`level`

  The new error_reporting level. It takes on either a bitmask, or named constants. Using named constants is strongly encouraged to ensure compatibility for future versions. As error levels are added, the range of integers increases, so older integer-based error levels will not always behave as expected.

  The available error level constants and the actual meanings of these error levels are described in the predefined constants.

### 반환값

Returns the old error_reporting level.

### 변경점

버전 | 설명
--- | ---
5.0.0 | `E_STRICT` introduced (not part of `E_ALL`).
5.2.0 | `E_RECOVERABLE_ERROR` introduced.
5.3.0 | `E_DEPRECATED` and `E_USER_DEPRECATED` introduced.
6.0.0 | `E_STRICT` became part of `E_ALL`.

### 예제

Example #1 error_reporting() examples

`<?php
// Turn off all error reporting
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 (see changelog)
error_reporting(E_ALL);
// Report all PHP errors
error_reporting(-1);
// Same as error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);
?>`

### 주의

Warning

Most of `E_STRICT` errors are evaluated at the compile time thus such errors are not reported in the file where error_reporting is enhanced to include `E_STRICT` errors (and vice versa).

Tip

Passing in the value -1 will show every possible error, even when new levels and constants are added in future PHP versions. The `E_ALL` constant also behaves this way as of PHP 6.

### 참고

- The display_errors directive
- The html_errors directive
- The xmlrpc_errors directive
- ini_set() - Sets the value of a configuration option

error_log
restore_error_handler
Error Handling 함수 목록
PHP Manual