IntlChar::charName()

版本：php7

(PHP 7)

Retrieve the name of a Unicode character

说明

publicstaticIntlChar::charName(mixed $codepoint[,int $nameChoice= IntlChar::UNICODE_CHAR_NAME]): string

Retrieves the name of a Unicode character.

Depending on$nameChoice, 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.

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}")

$nameChoice

Which set of names to use for the lookup. Can be any of these constants:

• IntlChar::UNICODE_CHAR_NAME(default)
• IntlChar::UNICODE_10_CHAR_NAME
• IntlChar::EXTENDED_CHAR_NAME
• IntlChar::CHAR_NAME_ALIAS
• IntlChar::CHAR_NAME_CHOICE_COUNT

返回值

The corresponding name, or an empty string if there is no name for this character, or NULL if there is no such code point.

范例

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) ""

参见

• IntlChar::charFromName() Find Unicode character by name and return its code point value
• IntlChar::enumCharNames() Enumerate all assigned Unicode characters within a range