UConverter::setSubstChars
UConverter::transcode
UConverter
PHP Manual

# UConverter::toUCallback

(PHP 5.5.0, PECL >= 3.0.0a1)

UConverter::toUCallback — Default "to" callback function

### Description

public mixed UConverter::toUCallback ( integer `$reason` , string `$source` , string `$codeUnits` , integer `&$error` )

Warning

This function is currently not documented; only its argument list is available.

### Parameters

`reason`

`source`

`codeUnits`

`error`

### Return Values

UConverter::setSubstChars
UConverter::transcode
UConverter
PHP Manual