这几天有在用simple_html_dom抓一些文章。不同网站的编码在国内基本上是gbk gb2312 utf-8。而以gb2312和utf-8居多。

我这一版的simple_html_dom有一个方法 convert_text 是这个样子的。

复制代码 代码如下:

// PaperG - Function to convert the text from one character set to another if the two sets are not the same.

function convert_text($text)

{

global $debug_object;

if (is_object($debug_object)) {$debug_object->debug_log_entry(1);}

$converted_text = $text;

$sourceCharset = "";

$targetCharset = "";

if ($this->dom)

{

$sourceCharset = strtoupper($this->dom->_charset);

$targetCharset = strtoupper($this->dom->_target_charset);

}

if (is_object($debug_object)) {$debug_object->debug_log(3, "source charset: " . $sourceCharset . " target charaset: " . $targetCharset);}

if (!empty($sourceCharset) && !empty($targetCharset) && (strcasecmp($sourceCharset, $targetCharset) != 0))

{

// Check if the reported encoding could have been incorrect and the text is actually already UTF-8

if ((strcasecmp($targetCharset, 'UTF-8') == 0) && ($this->is_utf8($text)))

{

$converted_text = $text;

}

else

{

$converted_text = iconv($sourceCharset, $targetCharset, $text);

}

}

// Lets make sure that we don't have that silly BOM issue with any of the utf-8 text we output.

if ($targetCharset == 'UTF-8')

{

if (substr($converted_text, 0, 3) == "/xef/xbb/xbf")

{

$converted_text = substr($converted_text, 3);

}

if (substr($converted_text, -3) == "/xef/xbb/xbf")

{

$converted_text = substr($converted_text, 0, -3);

}

}

return $converted_text;

}

来看这一行：

复制代码 代码如下:

$converted_text = iconv($sourceCharset, $targetCharset, $text);

会引起转码不正确。比如会把gb2312的文字转成：

复制代码 代码如下:

4月26日在