IntlChar::foldCase

Perform case folding on a code point

&reftitle.description; public static ``int``string``null```IntlChar::foldCase` ``int``string```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.

&reftitle.parameters;

`codepoint`

- &intl.codepoint.parameter;

`options`

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

&reftitle.returnvalues;

Returns the Simple_Case_Folding of the code point, if any; otherwise the code point itself on success, or &null; on failure.