php-汉字拼音首字母工具类，php-汉字工具类
<?<span>php
</span><span>/*</span><span>*
* 汉字拼音首字母工具类
* 注： 英文的字串：不变返回(包括数字) eg .abc123 => abc123
* 中文字符串：返回拼音首字符 eg. 测试字符串 => CSZFC
* 中英混合串: 返回拼音首字符和英文 eg. 我i我j => WIWJ
* eg.
* $py = new str2PY();
*
* $result = $py->getInitials('周杰伦');
*
* //获取首字母
* $result = $py->getFirstString('abc'); //A
* $resutl = $py->getFirstString("周杰伦"); //Z
*
</span><span>*/</span>
<span>class</span><span> str2py
{
</span><span>private</span> <span>$_pinyins</span> = <span>array</span><span>(
</span>176161 => 'A',
176197 => 'B',
178193 => 'C',
180238 => 'D',
182234 => 'E',
183162 => 'F',
184193 => 'G',
185254 => 'H',
187247 => 'J',
191166 => 'K',
192172 => 'L',
194232 => 'M',
196195 => 'N',
197182 => 'O',
197190 => 'P',
198218 => 'Q',
200187 => 'R',
200246 => 'S',
203250 => 'T',
205218 => 'W',
206244 => 'X',
209185 => 'Y',
212209 => 'Z',<span>
);
</span><span>private</span> <span>$_charset</span> = <span>null</span><span>;
</span><span>/*</span><span>*
* 构造函数, 指定需要的编码 default: utf-8
* 支持utf-8, gb2312
*
* @param unknown_type $charset
</span><span>*/</span>
<span>public</span> <span>function</span> __construct(<span>$charset</span> = 'utf-8'<span>)
{
</span><span>$this</span>->_charset = <span>$charset</span><span>;
}
</span><span>/*</span><span>*
* 中文字符串 substr
*
* @param string $str
* @param int $start
* @param int $len
* @return string
</span><span>*/</span>
<span>private</span> <span>function</span> _msubstr(<span>$str</span>, <span>$start</span>, <span>$len</span><span>)
{
</span><span>$start</span> = <span>$start</span> * 2<span>;
</span><span>$len</span> = <span>$len</span> * 2<span>;
</span><span>$strlen</span> = <span>strlen</span>(<span>$str</span><span>);
</span><span>$result</span> = ''<span>;
</span><span>for</span> (<span>$i</span> = 0; <span>$i</span> < <span>$strlen</span>; <span>$i</span>++<span>)
{
</span><span>if</span> (<span>$i</span> >= <span>$start</span> && <span>$i</span> < (<span>$start</span> + <span>$len</span><span>))
{
</span><span>if</span> (<span>ord</span>(<span>substr</span>(<span>$str</span>, <span>$i</span>, 1)) > 129<span>)
{
</span><span>$result</span> .= <span>substr</span>(<span>$str</span>, <span>$i</span>, 2<span>);
}
</span><span>else</span><span>
{
</span><span>$result</span> .= <span>substr</span>(<span>$str</span>, <span>$i</span>, 1<span>);
}
}
</span><span>if</span> (<span>ord</span>(<span>substr</span>(<span>$str</span>, <span>$i</span>, 1)) > 129<span>)
{
</span><span>$i</span>++<span>;
}
}
</span><span>return</span> <span>$result</span><span>;
}
</span><span>/*</span><span>*
* 字符串切分为数组 (汉字或者一个字符为单位)
*
* @param string $str
* @return array
</span><span>*/</span>
<span>private</span> <span>function</span> _cutWord(<span>$str</span><span>)
{
</span><span>$words</span> = <span>array</span><span>();
</span><span>while</span> (<span>$str</span> != ""<span>)
{
</span><span>if</span> (<span>$this</span>->_isAscii(<span>$str</span><span>))
{</span><span>/*</span><span> 非中文 </span><span>*/</span>
<span>$words</span>[] = <span>$str</span>[0<span>];
</span><span>$str</span> = <span>substr</span>(<span>$str</span>, <span>strlen</span>(<span>$str</span>[0<span>]));
}
</span><span>else</span><span>
{
</span><span>$word</span> = <span>$this</span>->_msubstr(<span>$str</span>, 0, 1<span>);
</span><span>$words</span>[] = <span>$word</span><span>;
</span><span>$str</span> = <span>substr</span>(<span>$str</span>, <span>strlen</span>(<span>$word</span><span>));
}
}
</span><span>return</span> <span>$words</span><span>;
}
</span><span>/*</span><span>*
* 判断字符是否是ascii字符
*
* @param string $char
* @return bool
</span><span>*/</span>
<span>private</span> <span>function</span> _isAscii(<span>$char</span><span>)
{
</span><span>return</span> ( <span>ord</span>(<span>substr</span>(<span>$char</span>, 0, 1)) < 160<span> );
}
</span><span>/*</span><span>*
* 判断字符串前3个字符是否是ascii字符
*
* @param string $str
* @return bool
</span><span>*/</span>
<span>private</span> <span>function</span> _isAsciis(<span>$str</span><span>)
{
</span><span>$len</span> = <span>strlen</span>(<span>$str</span>) >= 3 ? 3 : 2<span>;
</span><span>$chars</span> = <span>array</span><span>();
</span><span>for</span> (<span>$i</span> = 1; <span>$i</span> < <span>$len</span> - 1; <span>$i</span>++<span>)
{
</span><span>$chars</span>[] = <span>$this</span>->_isAscii(<span>$str</span>[<span>$i</span>]) ? 'yes' : 'no'<span>;
}
</span><span>$result</span> = <span>array_count_values</span>(<span>$chars</span><span>);
</span><span>if</span> (<span>empty</span>(<span>$result</span>['no'<span>]))
{
</span><span>return</span> <span>true</span><span>;
}
</span><span>return</span> <span>false</span><span>;
}
</span><span>/*</span><span>*
* 获取中文字串的拼音首字符
*
* @param string $str
* @return string
</span><span>*/</span>
<span>public</span> <span>function</span> getInitials(<span>$str</span><span>)
{
</span><span>if</span> (<span>empty</span>(<span>$str</span><span>))
</span><span>return</span> ''<span>;
</span><span>if</span> (<span>$this</span>->_isAscii(<span>$str</span>[0]) && <span>$this</span>->_isAsciis(<span>$str</span><span>))
{
</span><span>return</span> <span>$str</span><span>;
}
</span><span>$result</span> = <span>array</span><span>();
</span><span>if</span> (<span>$this</span>->_charset == 'utf-8'<span>)
{
</span><span>$str</span> = <span>iconv</span>('utf-8', 'gb2312', <span>$str</span><span>);
}
</span><span>$words</span> = <span>$this</span>->_cutWord(<span>$str</span><span>);
</span><span>foreach</span> (<span>$words</span> <span>as</span> <span>$word</span><span>)
{
</span><span>if</span> (<span>$this</span>->_isAscii(<span>$word</span><span>))
{</span><span>/*</span><span> 非中文 </span><span>*/</span>
<span>$result</span>[] = <span>$word</span><span>;
</span><span>continue</span><span>;
}
</span><span>$code</span> = <span>ord</span>(<span>substr</span>(<span>$word</span>, 0, 1)) * 1000 + <span>ord</span>(<span>substr</span>(<span>$word</span>, 1, 1<span>));
</span><span>/*</span><span> 获取拼音首字母A--Z </span><span>*/</span>
<span>if</span> ((<span>$i</span> = <span>$this</span>->_search(<span>$code</span>)) != -1<span>)
{
</span><span>$result</span>[] = <span>$this</span>->_pinyins[<span>$i</span><span>];
}
}
</span><span>return</span> <span>strtoupper</span>(<span>implode</span>('', <span>$result</span><span>));
}
</span><span>/*</span><span>*
* 20140624 wangtianbao 获取首字母
* @param string $str
* @return string
</span><span>*/</span>
<span>public</span> <span>function</span> getFirstString(<span>$str</span><span>)
{
</span><span>//</span><span>先把中文转换成字母</span>
<span>$new_string</span> = <span>$this</span>->getInitials(<span>$str</span><span>);
</span><span>if</span> (<span>empty</span>(<span>$new_string</span><span>))
{
</span><span>return</span> ''<span>;
}
</span><span>else</span><span>
{
</span><span>return</span> <span>strtoupper</span>(<span>substr</span>(<span>$new_string</span>, 0, 1<span>));
}
}
</span><span>private</span> <span>function</span> _getChar(<span>$ascii</span><span>)
{
</span><span>if</span> (<span>$ascii</span> >= 48 && <span>$ascii</span> <= 57<span>)
{
</span><span>return</span> <span>chr</span>(<span>$ascii</span>); <span>/*</span><span> 数字 </span><span>*/</span><span>
}
</span><span>elseif</span> (<span>$ascii</span> >= 65 && <span>$ascii</span> <= 90<span>)
{
</span><span>return</span> <span>chr</span>(<span>$ascii</span>); <span>/*</span><span> A--Z </span><span>*/</span><span>
}
</span><span>elseif</span> (<span>$ascii</span> >= 97 && <span>$ascii</span> <= 122<span>)
{
</span><span>return</span> <span>chr</span>(<span>$ascii</span> - 32); <span>/*</span><span> a--z </span><span>*/</span><span>
}
</span><span>else</span><span>
{
</span><span>return</span> '-'; <span>/*</span><span> 其他 </span><span>*/</span><span>
}
}
</span><span>/*</span><span>*
* 查找需要的汉字内码(gb2312) 对应的拼音字符( 二分法 )
*
* @param int $code
* @return int
</span><span>*/</span>
<span>private</span> <span>function</span> _search(<span>$code</span><span>)
{
</span><span>$data</span> = <span>array_keys</span>(<span>$this</span>-><span>_pinyins);
</span><span>$lower</span> = 0<span>;
</span><span>$upper</span> = <span>sizeof</span>(<span>$data</span>) - 1<span>;
</span><span>$middle</span> = (int) <span>round</span>((<span>$lower</span> + <span>$upper</span>) / 2<span>);
</span><span>if</span> (<span>$code</span> < <span>$data</span>[0<span>])
</span><span>return</span> -1<span>;
</span><span>for</span><span> (;;)
{
</span><span>if</span> (<span>$lower</span> > <span>$upper</span><span>)
{
</span><span>return</span> <span>$data</span>[<span>$lower</span> - 1<span>];
}
</span><span>$tmp</span> = (int) <span>round</span>((<span>$lower</span> + <span>$upper</span>) / 2<span>);
</span><span>if</span> (!<span>isset</span>(<span>$data</span>[<span>$tmp</span><span>]))
{
</span><span>return</span> <span>$data</span>[<span>$middle</span><span>];
}
</span><span>else</span><span>
{
</span><span>$middle</span> = <span>$tmp</span><span>;
}
</span><span>if</span> (<span>$data</span>[<span>$middle</span>] < <span>$code</span><span>)
{
</span><span>$lower</span> = (int) <span>$middle</span> + 1<span>;
}
</span><span>else</span> <span>if</span> (<span>$data</span>[<span>$middle</span>] == <span>$code</span><span>)
{
</span><span>return</span> <span>$data</span>[<span>$middle</span><span>];
}
</span><span>else</span><span>
{
</span><span>$upper</span> = (int) <span>$middle</span> - 1<span>;
}
}
}
}</span>
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Assassin's Creed Shadows: Seashell Riddle Solution
2 weeks agoByDDD
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hot Tools
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Dreamweaver Mac version
Visual web development tools
