略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: IntlChar::istitle

2024-11-14

IntlChar::istitle

(PHP 7, PHP 8)

IntlChar::istitleCheck if code point is a titlecase letter

说明

public static IntlChar::istitle(int|string $codepoint): ?bool

Determines whether the specified code point is a titlecase letter.

true for general category "Lt" (titlecase letter).

参数

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}")

返回值

Returns true if codepoint is a titlecase letter, false if not. Returns null on failure.

范例

示例 #1 Testing different code points

<?php
var_dump
(IntlChar::istitle("A"));
var_dump(IntlChar::istitle("a"));
var_dump(IntlChar::istitle("Φ"));
var_dump(IntlChar::istitle("φ"));
var_dump(IntlChar::istitle("1"));
?>

以上例程会输出:

bool(false)
bool(true)
bool(false)
bool(true)
bool(false)

参见

add a noteadd a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址:https://www.php.net/manual/en/intlchar.istitle.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3