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trigger_error
Manuál PHP
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trigger_error

(PHP 4 >= 4.0.1, PHP 5)

trigger_error -- Generates a user-level error/warning/notice message

Popis

bool trigger_error ( string error_msg [, int error_type] )

Used to trigger a user error condition, it can be used by in conjunction with the built-in error handler, or with a user defined function that has been set as the new error handler (set_error_handler()).

This function is useful when you need to generate a particular response to an exception at runtime.

Seznam parametrů

error_msg

The designated error message for this error. It's limited to 1024 characters in length. Any additional characters beyond 1024 will be truncated.

error_type

The designated error type for this error. It only works with the E_USER family of constants, and will default to E_USER_NOTICE.

Návratové hodnoty

This function returns FALSE if wrong error_type is specified, TRUE otherwise.

Příklady

Příklad 1. trigger_error() example

See set_error_handler() for a more extensive example.

<?php
if (assert($divisor == 0)) {
    trigger_error("Cannot divide by zero", E_USER_ERROR);
}
?>

Viz také

error_reporting()
set_error_handler()
restore_error_handler()
The error level constants

PředcházejícíDomůDalší
set_exception_handlerNahoru