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中文字符串取下标转换整数的有关问题

WBOY
WBOYOriginal
2016-06-13 12:41:39782browse

中文字符串取下标转换整数的问题
已知php文件是utf8编码,现有如下内容:
$data = "中";
为什么(int)substr($data, 0, 1) == 0?
如何能转换成正确的整数?

PHP 编码 UTF-8
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