(PHP 7)
IntlChar::totitle — Make Unicode character titlecase
The given character is mapped to its titlecase equivalent. If the character has no titlecase equivalent, the original character itself is returned.
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.
Example #1 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)