Perform case folding on a code point

IntlChar::enumCharTypes
IntlChar::forDigit
IntlChar
PHP Manual

# IntlChar::foldCase

(PHP 7)

IntlChar::foldCase — Perform case folding on a code point

### Description

public static mixed IntlChar::foldCase ( mixed `$codepoint` [, int `$options` = `IntlChar::FOLD_CASE_DEFAULT` ] )

The given character is mapped to its case folding equivalent; if the character has no case folding equivalent, the character itself is returned.

### Parameters

`codepoint`

  The integer codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")

`options`

  Either `IntlChar::FOLD_CASE_DEFAULT` (default) or `IntlChar::FOLD_CASE_EXCLUDE_SPECIAL_I`.

### Return Values

Returns the Simple_Case_Folding of the code point, if any; otherwise the code point itself.

IntlChar::enumCharTypes
IntlChar::forDigit
IntlChar
PHP Manual