本文实例讲述了php将html转成wml的WAP标记语言的方法。分享给大家供大家参考。具体实现方法如下:
<?php
//---------------------------------------
// Html 标记WAP语言
//----------------------------------------
function html2wml($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\" \"替换为空格
$content = preg_replace(\"/\\\\ \\\\;/i\", \" \", $content);
$content = preg_replace(\"/\\\\ /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。
$content = str_replace(\'$\', \'$$\', $content);
$content = str_replace(\"\\\\r\\\\n\", \"\\\\n\", htmlspecialchars($content));
$content = explode(\"\\\\n\", $content);
for ($i = 0; $i < count($content); $i++)
{
$content[$i] = trim($content[$i]);
// 如果去掉全角空格为空行,则设为空行,否则不对全角空格过滤。
if (str_replace(\' \', \'\', $content[$i]) == \'\') $content[$i] = \'\';
}
$content = str_replace(\"<p><br /></p>\\\\n\", \"\", \'<p>\'.implode(\"<br /></p>\\\\n<p>\", $content).\"<br /></p>\\\\n\");
//还原图片
if(isset($imgarr[0]) && count($imgarr[0])>0 )
{
foreach($imgarr[0] as $k=>$v)
{
$attstr = (preg_match(\'#/$#\', $imgarr[1][$k])) ? \'<img \'.$imgarr[1][$k].\'>\' : \'<img \'.$imgarr[1][$k].\' />\';
$content = str_replace(\"WAP-IMG::{$k}\", $attstr, $content);
}
}
$content = preg_replace(\"/&[a-z]{3,10};/isU\", \' \', $content);
return $content;
}
function text2wml($content)
{
$content = str_replace(\'$\', \'$$\', $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>\\\\n\", \"\", \"<p>\".implode(\"<br /></p>\\\\n<p>\", $content).\"<br /></p>\\\\n\");
return $content;
}
?>
希望本文所述对大家的php程序设计有所帮助。
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