IntlChar::totitle()

版本：php7

(PHP 7)

Make Unicode character titlecase

说明

publicstaticIntlChar::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 integer codepoint value(e.g.0x2603forU+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 integer unless the code point was passed as a UTF-8 string, in which case a string will be returned.

范例

Testing different code points

<?php
var_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