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# error_reporting

(PHP 3, PHP 4 , PHP 5)

error_reporting -- Sets which PHP errors are reported

## Description

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.

error_reporting() sets PHP's error reporting level, and returns the old level. The `level` parameter 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.

예 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 (bitwise 63 may be used in PHP 3)
error_reporting(E_ALL);
// Same as error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);
?>`

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

표 1. error_reporting() level constants and bit values

value | constant
--- | ---
1 | E_ERROR
2 | E_WARNING
4 | E_PARSE
8 | E_NOTICE
16 | E_CORE_ERROR
32 | E_CORE_WARNING
64 | E_COMPILE_ERROR
128 | E_COMPILE_WARNING
256 | E_USER_ERROR
512 | E_USER_WARNING
1024 | E_USER_NOTICE
2047 | E_ALL
2048 | E_STRICT

주의
With PHP > 5.0.0 `E_STRICT` with value 2048 is available. `E_ALL` does NOT include error level`E_STRICT`.

See also the display_errors directive and ini_set().

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error_log | 위로 | restore_error_handler