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php 获取下一个字母,该怎么处理

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Release： 2016-06-13 13:47:12
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php 获取下一个字母
如给出一个字母“B”,怎么样得到它的下个字母“C”呢？PHP有没有现成的函数可调用呢？

------解决方案--------------------
现成的函数不清楚，
如果是26个英文字母的固定排序下的下一个字母，用数组相关的函数可以实现吧？
------解决方案--------------------
现成的函数不知道有不有? 等高人来答。

PHP code

$a=ord('B'); 
echo chr($a+1);
<br><font color="#e78608">------解决方案--------------------</font><br>
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$s = 'B';
echo ++$s;//out C
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code echo ord out php
source：php.cn
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