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# PEAR_ErrorStack::setMessageCallback()

PEAR_ErrorStack::setMessageCallback() -- Set an error code => error message mapping callback

## Synopsis

    require_once 'PEAR/ErrorStack.php';

``void PEAR_ErrorStack::setMessageCallback` (mixed $msgCallback)`

## Description

This method sets the callback that can be used to generate error messages for any PEAR_ErrorStack instance

## Parameter

mixed `$msgCallback`

## Throws

No exceptions thrown.

## Note

This function can not be called statically.

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