本文实例讲述了PHP读取文件,解决中文乱码UTF-8的方法。分享给大家供大家参考，具体如下：

$opts = array(

"file" => array(

"encoding" => "utf-8"

)

);

$opts = array("http" => array("encoding" => "utf-8"));

$ctxt = stream_context_create($opts);

$content = file_get_contents($filePath, FILE_TEXT, $ctxt);

最简单的就是将GF2312→UTF-8

$str = iconv("gb2312", "utf-8", $str);

不管用的

$content = mb_convert_encoding($content, "UTF-8", "auto");

******************************************丑陋的分割线来告诉大家上面的不好的：下面的才是正确的方法・・・哈哈・・・**********************************************************

define("UTF32_BIG_ENDIAN_BOM", chr(0x00) . chr(0x00) . chr(0xFE) . chr(0xFF));

define("UTF32_LITTLE_ENDIAN_BOM", chr(0xFF) . chr(0xFE) . chr(0x00) . chr(0x00));

define("UTF16_BIG_ENDIAN_BOM", chr(0xFE) . chr(0xFF));

define("UTF16_LITTLE_ENDIAN_BOM", chr(0xFF) . chr(0xFE));

define("UTF8_BOM", chr(0xEF) . chr(0xBB) . chr(0xBF));

$text = file_get_contents($newPath);

$first2 = substr($text, 0, 2);

$first3 = substr($text, 0, 3);

$first4 = substr($text, 0, 3);

$encodType = "";

if ($first3 == UTF8_BOM)

$encodType = "UTF-8 BOM";

else if ($first4 == UTF32_BIG_ENDIAN_BOM)

$encodType = "UTF-32BE";

else if ($first4 == UTF32_LITTLE_ENDIAN_BOM)

$encodType = "UTF-32LE";

else if ($first2 == UTF16_BIG_ENDIAN_BOM)

$encodType = "UTF-16BE";

else if ($first2 == UTF16_LITTLE_ENDIAN_BOM)

$encodType = "UTF-16LE";

$content = file_get_contents($newPath);

$content = iconv($encodType, "utf-8", $content);

终极版・・・・・

$text = file_get_contents($filePath);

//$encodType = mb_detect_encoding($text);

define("UTF32_BIG_ENDIAN_BOM", chr(0x00) . chr(0x00) . chr(0xFE) . chr(0xFF));

define("UTF32_LITTLE_ENDIAN_BOM", chr(0xFF) . chr(0xFE) . chr(0x00) . chr(0x00));

define("UTF16_BIG_ENDIAN_BOM", chr(0xFE) . chr(0xFF));

define("UTF16_LITTLE_ENDIAN_BOM", chr(0xFF) . chr(0xFE));

define("UTF8_BOM", chr(0xEF) . chr(0xBB) . chr(0xBF));

$first2 = substr($text, 0, 2);

$first3 = substr($text, 0, 3);

$first4 = substr($text, 0, 3);

$encodType = "";

if ($first3 == UTF8_BOM)

$encodType = "UTF-8 BOM";

else if ($first4 == UTF32_BIG_ENDIAN_BOM)

$encodType = "UTF-32BE";

else if ($first4 == UTF32_LITTLE_ENDIAN_BOM)

$encodType = "UTF-32LE";

else if ($first2 == UTF16_BIG_ENDIAN_BOM)

$encodType = "UTF-16BE";

else if ($first2 == UTF16_LITTLE_ENDIAN_BOM)

$encodType = "UTF-16LE";

//下面的判断主要还是判断ANSI编码的・

if ($encodType == "") {//即默认创建的txt文本-ANSI编码的

$content = iconv("GBK", "UTF-8", $text);

} else if ($encodType == "UTF-8 BOM") {//本来就是UTF-8不用转换

$content = $text;

} else {//其他的格式都转化为UTF-8就可以了

$content = iconv($encodType, "UTF-8", $text);

}

以上的终极版・可以适应中文操作windows系统建立的ANSI``````````````UTF-8`````````Unicode`````的txt文本・・・・

更多关于PHP相关内容感兴趣的读者可查看本站专题：《PHP编码与转码操作技巧汇总》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》、《php常用函数与技巧总结》及《PHP错误与异常处理方法总结》

希望本文所述对大家PHP程序设计有所帮助。