IntlChar::totitle()
版本:php7
(PHP 7)
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 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