# PHP trigger_error() Function

PHP Error Reference

## Example

If $usernum > 10, trigger an error:

<?php
if ($usernum>10) {
trigger_error("Number cannot be larger than 10");
}
?>

The above code will output something like this:

Notice: Number cannot be larger than 10
in C:\webfolder\test.php on line 6

## Definition and Usage

The trigger_error() function creates a user-level error message.

The trigger_error() function can be used with the built-in error handler, or with a user-defined function set by the set_error_handler() function.

## Syntax

trigger_error(errormsg,errortype);

Parameter | Description
--- | ---
errormsg | Required. Specifies the error message for this error. Max 1024 bytes in length

errortype

Optional. Specifies the error type for this error. Possible values:

- E_USER_ERROR
- E_USER_WARNING
- E_USER_NOTICE (this is default)

## Technical Details

Return Value: | FALSE if wrong error type is specified, TRUE otherwise
PHP Version: | 4.0.1+

PHP Error Reference

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