Php/docs/intlchar.totitle

• PHP Manual
• IntlChar
• Make Unicode character titlecase

IntlChar::totitle

(PHP 7)

IntlChar::totitle — Make Unicode character titlecase

说明

public static IntlChar::totitle ( mixed $codepoint ) : mixed

The given character is mapped to its titlecase equivalent. If the character has no titlecase equivalent, the original character itself is returned.

参数

codepoint

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

返回值

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

The return type will be int unless the code point was passed as a UTF-8 string, in which case a string will be returned.

范例

Example #1 Testing different code points

<?phpvar_dump(IntlChar::totitle("A"));var_dump(IntlChar::totitle("a"));var_dump(IntlChar::totitle("Φ"));var_dump(IntlChar::totitle("φ"));var_dump(IntlChar::totitle("1"));var_dump(IntlChar::totitle(ord("A")));var_dump(IntlChar::totitle(ord("a")));?>

以上例程会输出：

string(1) "A"
string(1) "A"
string(2) "Φ"
string(2) "Φ"
string(1) "1"
int(65)
int(65)

参见

• IntlChar::tolower() - Make Unicode character lowercase
• IntlChar::toupper() - Make Unicode character uppercase
• mb_convert_case() - 对字符串进行大小写转换