PHP编码转换在Excel读取中的作用体现
PHP发展了不少,现在pear用起来很方便,其中就有相关的class来读取Excel文件里面的内容,如果不想使用pear的话,可以考虑使用excel_class.php,google一下,可以找到这个class的source code下载,也能找到基本的example code,用起来很方便。
在PHP编码转换时需要注意的是,从Excel里面读取出来的属于UTF-16LE编码,如果在移动应用中使用excel_class,则需要注意,因为通常手机都是支持UTF-8编码,其中就涉及到编码的转换。
例如我使用
echo $return[Sheet2][0][0];
来显示第1行第1列里面的内容,原本内容是“开始”,使用PHP在web上显示的时候也确实是“开始”,但是查看网页的源代码是
开始
其中是为了在网页上显示,24320和22987的十六进制表示则是“开始”的UTF-16LE编码。
那么我们需要做的就是将这个UTF-16LE编码转换为UTF-8编码。
首先打开excel_class.php,找到函数uc2html, 将函数中的代码注释掉,直接将参数返回, 即改函数不做任何操作。
function uc2html($str) {
return $str;
}
接下来使用PHP中提供的函数mb_convert_encoding来将UTF-16LE转换成UTF-8。
echo mb_convert_encoding($return[Sheet2][0][0], 'UTF-8', 'UTF-16LE');
到此,即完成了UTF-16LE到UTF-8的PHP编码转换。

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