php将html转成wml的WAP标记语言实例，wmlwap_PHP教程

<&#63;php
//---------------------------------------
// Html 标记WAP语言
//----------------------------------------
function html2wml($content)
{
  //保留图片
  preg_match_all("/@@##@@]*)>/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 .*&#63;<\/style>/is", "", $content);
  $content = preg_replace("/<script .*&#63;<\/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*\/&#63;\/>/i", "\n", $content);
  $content = preg_replace("/<\/&#63;p>/i", "\n", $content);
  $content = preg_replace("/<\/&#63;td>/i", "\n", $content);
  $content = preg_replace("/<\/&#63;div>/i", "\n", $content);
  $content = preg_replace("/<\/&#63;blockquote>/i", "\n", $content);
  $content = preg_replace("/<\/&#63;li>/i", "\n", $content);
  // 将" "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('/\&\#.*&#63;\;/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。
  $content = str_replace('$', '$$', $content);
  $content = str_replace("\r\n", "\n", htmlspecialchars($content));
  $content = explode("\n", $content);
  for ($i = 0; $i < count($content); $i++)
  {
  $content[$i] = trim($content[$i]);
  // 如果去掉全角空格为空行，则设为空行，否则不对全角空格过滤。
  if (str_replace('　', '', $content[$i]) == '') $content[$i] = '';
  }
  $content = str_replace("<p><br /></p>
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                        <div class="aritcle_card_info">
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                        </div>
                        <a href="/ai/950" class="aritcle_card_btn">
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                        </a>
                    </div>
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  //还原图片
  if(isset($imgarr[0]) && count($imgarr[0])>0 )
  {
    foreach($imgarr[0] as $k=>$v)
    {
     $attstr = (preg_match('#/$#', $imgarr[1][$k])) &#63; '@@##@@' : '@@##@@';
     $content = str_replace("WAP-IMG::{$k}", $attstr, $content);
    }
  }
  $content = preg_replace("/&[a-z]{3,10};/isU", ' ', $content);
  return $content;
}
function text2wml($content)
{
  $content = str_replace('$', '$$', $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><p><span>立即学习</span>“<a href="https://pan.quark.cn/s/7fc7563c4182" style="text-decoration: underline !important; color: blue; font-weight: bolder;" rel="nofollow" target="_blank">PHP免费学习笔记（深入）</a>”；</p>\n", "", "<p>".implode("<br /></p>\n<p>", $content)."<br /></p>\n");
  return $content;
}
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