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# restore_error_handler

(PHP 4 >= 4.0.1, PHP 5)

restore_error_handler -- Restores the previous error handler function

## Description

bool restore_error_handler ( void )

Used after changing the error handler function using set_error_handler(), to revert to the previous error handler (which could be the built-in or a user defined function).

## Return Values

This function always returns `TRUE`.

## Examples

Example 1. restore_error_handler() example Decide if unserialize() caused an error, then restore the original error handler.
`<?php function unserialize_handler($errno, $errstr) { echo "Invalid serialized value.\n"; } $serialized = 'foo'; set_error_handler('unserialize_handler'); $original = unserialize($serialized); restore_error_handler(); ?>`
The above example will output:
    Invalid serialized value.

## Notes

> Note: Calling restore_error_handler() from the error_handler function is ignored.

## See Also

error_reporting()
set_error_handler()
restore_exception_handler()
trigger_error()

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