//---------------------------------------

//Html标记WAP语言

//----------------------------------------

functionhtml2wml($content)

{

//保留图片

preg_match_all("/<img([^>]*)>/isU",$content,$imgarr);

if(isset($imgarr[0])&&count($imgarr[0])>0)

{

foreach($imgarr[0]as$k=>$v)$content=str_replace($v,"WAP-IMG::{$k}",$content);

}

//过滤掉样式表和脚本

$content=preg_replace("/<style.*?<\\/style>/is","",$content);

$content=preg_replace("/<script.*?<\\/script>/is","",$content);

//首先将各种可以引起换行的标签（如<br/>、<p>之类）替换成换行符"\\n"

$content=preg_replace("/<br\\s*\\/?\\/>/i","\\n",$content);

$content=preg_replace("/<\\/?p>/i","\\n",$content);

$content=preg_replace("/<\\/?td>/i","\\n",$content);

$content=preg_replace("/<\\/?div>/i","\\n",$content);

$content=preg_replace("/<\\/?blockquote>/i","\\n",$content);

$content=preg_replace("/<\\/?li>/i","\\n",$content);

//将"&nbsp;"替换为空格

$content=preg_replace("/\\&nbsp\\;/i","",$content);

$content=preg_replace("/\\&nbsp/i","",$content);

//过滤掉剩下的HTML标签

$content=strip_tags($content);

//将HTML中的实体（entity）转化为它所对应的字符

$content=html_entity_decode($content,ENT_QUOTES,"GB2312");

//过滤掉不能转化的实体（entity）

$content=preg_replace('/\\&\\#.*?\\;/i','',$content);

//上面是将HTML网页内容转化为带换行的纯文本，下面是将这些纯文本转化为WML。

$content=str_replace('$','$$',$content);

$content=str_replace("\\r\\n","\\n",htmlspecialchars($content));

$content=explode("\\n",$content);

for($i=0;$i<count($content);$i++)

{

$content[$i]=trim($content[$i]);

//如果去掉全角空格为空行，则设为空行，否则不对全角空格过滤。

if(str_replace('','',$content[$i])=='')$content[$i]='';

}

$content=str_replace("<p><br/></p>\\n","",'<p>'.implode("<br/></p>\\n<p>",$content)."<br/></p>\\n");

//还原图片

if(isset($imgarr[0])&&count($imgarr[0])>0)

{

foreach($imgarr[0]as$k=>$v)

{

$attstr=(preg_match('#/$#',$imgarr[1][$k]))?'<img'.$imgarr[1][$k].'>':'<img'.$imgarr[1][$k].'/>';

$content=str_replace("WAP-IMG::{$k}",$attstr,$content);

}

}

$content=preg_replace("/&amp;[a-z]{3,10};/isU",'',$content);

return$content;

}

functiontext2wml($content)

{

$content=str_replace('$','$$',$content);

$content=str_replace("\\r\\n","\\n",htmlspecialchars($content));

$content=explode("\\n",$content);

for($i=0;$i<count($content);$i++)

{

//过滤首尾空格

$content[$i]=trim($content[$i]);

//如果去掉全角空格为空行，则设为空行，否则不对全角空格过滤。

if(str_replace("","",$content[$i])=="")$content[$i]="";

}

//合并各行，转化为WML，并过滤掉空行

$content=str_replace("<p><br/></p>\\n","","<p>".implode("<br/></p>\\n<p>",$content)."<br/></p>\\n");

return$content;

}

?>

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