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(PHP 7, PHP 8)
IntlChar::charName — Retrieve the name of a Unicode character
$codepoint, int $type = IntlChar::UNICODE_CHAR_NAME): ?string
Retrieves the name of a Unicode character.
Depending on type, the resulting character name is the "modern" name or the name that
was defined in Unicode version 1.0. The name contains only "invariant" characters like A-Z, 0-9, space, and '-'.
Unicode 1.0 names are only retrieved if they are different from the modern names and if ICU contains the data for them.
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}")
type
Which set of names to use for the lookup. Can be any of these constants:
IntlChar::UNICODE_CHAR_NAME (default)IntlChar::UNICODE_10_CHAR_NAMEIntlChar::EXTENDED_CHAR_NAMEIntlChar::CHAR_NAME_ALIASIntlChar::CHAR_NAME_CHOICE_COUNT
The corresponding name, or an empty string if there is no name for this character,
or null if there is no such code point.
示例 #1 Testing different code points
<?php
var_dump(IntlChar::charName("."));
var_dump(IntlChar::charName(".", IntlChar::UNICODE_CHAR_NAME));
var_dump(IntlChar::charName("\u{2603}"));
var_dump(IntlChar::charName("\u{0000}"));
?>
以上例程会输出：
string(9) "FULL STOP" string(9) "FULL STOP" string(7) "SNOWMAN" string(0) ""
