解决PHP生成UTF-8编码的CSV文件用Excel打开乱码的问题
这次又遇到这个问题了, 在网上一番寻找, 在一篇java的文章里找到了原因, 是由于输出的CSV文件中没有BOM.
什么是BOM?
在UCS 编码中有一个叫做”ZERO WIDTH NO-BREAK SPACE”的字符,它的编码是FEFF。而FFFE在UCS中是不存在的字符,所以不应该出现在实际传输中。UCS规范建议我们在传输字节流前,先传输字符”ZERO WIDTH NO-BREAK SPACE”。这样如果接收者收到FEFF,就表明这个字节流是Big-Endian的;如果收到FFFE,就表明这个字节流是Little- Endian的。因此字符”ZERO WIDTH NO-BREAK SPACE”又被称作BOM。
UTF-8不需要BOM来表明字节顺序,但可以用BOM来表明编码方式。字符”ZERO WIDTH NO-BREAK SPACE”的UTF-8编码是EF BB BF。所以如果接收者收到以EF BB BF开头的字节流,就知道这是UTF-8编码了。
Windows就是使用BOM来标记文本文件的编码方式的。
那么如何在PHP中输出BOM呢?
在所有内容输出之前
print(chr(0xEF).chr(0xBB).chr(0xBF));?
<?phpfunction writeCsvToFile($file,array $data){ $fp = fopen($file, 'w'); //Windows下使用BOM来标记文本文件的编码方式 fwrite($fp,chr(0xEF).chr(0xBB).chr(0xBF)); foreach ($data as $line) { fputcsv($fp, $line); } fclose($fp);}$file = "./testcsv.csv";$data = array( array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'), array(1,'色色',12345,'vb200'),);writeCsvToFile($file,$data);?

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