Cleaning up HTML - Cleaning up HTML

我需要将HTML代码块(包含<tables>, <div>, <p>, <span id='something'>)清理成更标准化的HTML，没有原始HTML代码的样式，没有<tables> <div> <span>。清理的一种方法是删除所有原始HTML标签，除了<ul> <li> <ol> <br> <strong>和<td> <tr>将被<p>取代。剩下的标签将剥离类、id和属性。

我该怎么做?目前，我正在使用strip_tags()，它删除了所有标签，但将剩余的所有内容挤成一行，使其难以阅读。

清理

示例HTML代码

<table cellpadding="0" cellspacing="0" width="100%">
<tr><td align="center">
<table cellpadding="0" cellspacing="0" width="850">
<tr valign="top">
<td width="50%" style="padding-left:30px;">
<img border="0" src="http://www.newpads.info/l/AC-000-078.gif"><br>2000 Massachusetts Ave., Cambridge, MA 02140<br>Phone: (617) 498-0011 - Fax: (617) 498-0044<br><a href="http://www.windsorrealty.net" rel="nofollow">http://www.windsorrealty.net</a></td>
<td width="35%" style="border-left: 1px solid gray; padding-left: 15px">
<div><span style="font-weight:bold;">Sugandha Singh</span></div>
<div style="padding:10px;">
<div style="padding:2px;"><img src="http://www.newpads.info/img/phone.gif"> 781 985 4489</div>
<div style="padding:2px;"><img src="http://www.newpads.info/img/email2.gif"> ssinghrealty@gmail.com</div>
<div><img src="http://www.newpads.info/img/question.gif"> <a href="http://ag006436.speedhatch.com/rentals/CAM-058-197/inquiry" rel="nofollow"><font size="3">Ask Me A Question</font></a></div><div><img src="http://www.newpads.info/img/magnet.png">  <a href="http://ag006436.speedhatch.com" rel="nofollow"><font size="3">Search My Apartments</font></a></div></div>
</td>
</tr>
</table>
<br><table width="850">
<tr><td colspan="2" height="2" bgcolor="#275c7d"></td></tr><tr><tr><td colspan="2"><div style="font-weight:bold;"><font size="3">HARVARD LAW / SQUARE. HEAT+HOTWATER INCL. JAN 1. 1/2 FEE</font></div></td></tr></tr><tr valign="top"><td><img src="http://maps.google.com/maps/api/staticmap?center=42.38047,-71.121008&amp;path=weight:4|42.37847,-71.118008|42.37847,-71.124008|42.38247,-71.124008|42.38247,-71.118008|42.37847,-71.118008&amp;zoom=15&amp;size=335x225&amp;sensor=false" style="width:275px;"></td><td><font size="2"><table style="width:100%;height:100%;"><tr valign="top"><td width="50%"><table cellpadding="3" style="width:100%;"><tr><td colspan="2" style="font-weight:bold;">Basic Info</td></tr><tr><td style="width:45%;">Referral ID:</td><td>CAM-058-197</td></tr><tr><td>Beds: 1</td><td>Baths: 1</td></tr><tr><td>Rent:</td><td>$1800</td></tr><tr><td>Broker Fee:</td><td>Half Month</td></tr><tr><td>Date Avail:</td><td>January 1st</td></tr><tr><td>Rent Includes:</td><td>Heat, Hot Water</td></tr><tr><td>Pet Policy:</td><td>Cat Ok</td></tr><tr><td colspan="2">on Langdon St., Cambridge - Harvard Square</td></tr></table></td><td width="50%"><table cellpadding="5" style="width:100%;"><tr><td colspan="2" style="font-weight:bold;">Apartment Features</td></tr><tr><td width="50%">- Gas Range</td><td width="50%">- HT&HW</td></tr><tr><td width="50%">- Modern Bath</td><td width="50%">- Modern Kitchen</td></tr><tr><td width="50%">- Storage - Basement</td><td width="50%"></td></tr></table></td></tr><tr><td colspan="2"></td></tr></table></font></td></tr><tr><td colspan="3"><table width="100%" border="0" cellspacing="0" cellpadding="3"><tr><td colspan="2" align="center"><b>Transportation options</b></td></tr><tr><td width="50%"><div><div><div style="text-align:center;text-decoration:underline;">Subway Lines and Stops</div><ul><li>RED - Harvard Square (11 min)</li></ul></td><td width="50%"><div style="text-align:center;text-decoration:underline;">Bus Routes and Stops</div><ul><li>74 - Waterhouse St & Massachusetts Ave (5 min)</li><li>72 - Waterhouse St & Massachusetts Ave (5 min)</li><li>77 - Massachusetts Ave & Waterhouse St (5 min)</li><li>75 - Waterhouse St & Massachusetts Ave (5 min)</li><li>71 - Waterhouse St & Massachusetts Ave (5 min)</li><li>And More...</li></ul></div></div></td></tr></table></td></tr><tr><td colspan="3"><div><b><font size="2">Apartment Description:</font></b></div><div style="padding:5px;"><font size="2">Recent Renovations. Great Location. Easy Walk to Harvard Law School or Harvard Square.<br>All Hardwood Floors, Kitchen w/Dining Area, Good Closet Space, Laundry Facilities.<br>(pics. of similar unit in the bldg)<br>HEAT and HOT WATER is INCLUDED in the RENT!<br>Available January 1.</font></div><br></td></tr><tr><td colspan="3"><div><strong>Similar Properties</strong></div><div>1 Bd on Huron Ave., $1835, NO FEE, Include Util., Avail Now</div><div>1 Bd on Huron Ave., $1810, Include Util., NO FEE, Avail Now</div></td></tr><tr><td colspan="2" height="2" bgcolor="#275c7d"></td></tr></table><br><table width="850" cellpadding="0" cellspacing="0" border="0"><tr><td style="text-align:center;width:50%;"><img src="http://www.newpads.info/p/2373415.jpg" width="400" border="0"></td><td style="text-align:center;width:50%;"><img src="http://www.newpads.info/p/2373416.jpg" width="400" border="0"></td></tr><tr><tr><td height="10"></td></tr><td style="text-align:center;width:50%;"><img src="http://www.newpads.info/p/2373417.jpg" width="400" border="0"></td><td style="text-align:center;width:50%;"><img src="http://www.newpads.info/p/2373418.jpg" width="400" border="0"></td></tr><tr><tr><td height="10"></td></tr><td style="text-align:center;width:50%;"><img src="http://www.newpads.info/p/2373419.jpg" width="400" border="0"></td><td style="text-align:center;width:50%;"><img src="http://www.newpads.info/p/2373420.jpg" width="400" border="0"></td></tr><tr><tr><td height="10"></td></tr></tr></table><table width="100%"><tr><td height="20"></td></tr><tr><td align="center"><font size="4">Contact <strong>Sugandha Singh</strong> at 781 985 4489 or ssinghrealty@gmail.com.</font></td></tr></table><table width="100%" cellspacing="0" cellpadding="0"><tr><td height="25"></td></tr><tr><td align="center"><div style="font-family: Verdana, sans-serif;"><font size="0.6">Equal Housing Opportunity - Windsor Realty is not responsible for any errors or omissions. Terms, conditions and rent are subject to change without prior notice. The information gathered is from third party sources including the owner and public records and is not guaranteed.</font></div></td></tr></table></td></tr></table><img src="http://www.newpads.info/CLAD/904329.gif">

After strip_tags():

2000 Massachusetts Ave., Cambridge, MA 02140Phone: (617) 498-0011 - Fax: (617) 498-0044http://www.windsorrealty.netSugandha SinghPhone: 781 985 4489Email: ssinghrealty@gmail.com Ask Me A Question  Search My Apartments1 Bd on Concord Ave., HT/HW, Avail 01/01$1500 / MonthApartment DetailsApartment FeaturesReferral ID:WES-008-561Available:January 1stRent:$1500Bed(s):1Bath(s):1Rent Includes:Heat, Hot WaterFee:One MonthSubway Lines and StopsRED - Harvard Square (13 min)Bus Routes and Stops75 - Garden St Opp Mason St (7 min)74 - Garden St Opp Mason St (7 min)72 - Garden St Opp Mason St (7 min)78 - Concord Ave & Huron Ave (7 min)77 - Massachusetts Ave & Waterhouse St (8 min)And More...Contact Sugandha Singh at 781 985 4489 or ssinghrealty@gmail.com.Equal Housing Opportunity - Windsor Realty is not responsible for any errors or omissions. Terms, conditions and rent are subject to change without prior notice. The information gathered is from third party sources including the owner and public records and is not guaranteed.

注意:我使用Codeigniter，如果这有助于任何解析功能，它有。

$doc = new DOMDocument();
$doc->loadHTML(...);
$xpath = new DOMXpath($doc);
$nodes = $xpath->query("//*");
$rtn = array();
foreach ($nodes as $node)
{
    switch ($node->nodeName)
    {
        case "ul":
        case "li":
        case "ol":
        case "br":
        case "strong":
            $rtn[] = $node->nodeValue;
            break;
    }
}

您可以告诉strip_tags()要保留哪些标记。你只需要解决用<p>替换<td>和<tr>元素的问题。

这可以用DOMDocument类完成，方法是运行xpath查询，选择元素并用<p>元素替换它们，同时接管原始元素的子元素。

一些相关的代码可以在前面的答案中找到(问题:在PHP中从HTML中提取所有的文本和img标签)，对于移动孩子，还有另一个答案(问题:如何在PHP中删除重复的嵌套DOM元素?)显示。

PhpQuery在这种情况下是一个很好的选择。强烈推荐。

http://php.net/manual/en/function.str-replace.php用于替换标签

http://nl2.php.net/manual/en/function.strip-tags.php，不要忘记排除你需要的标签。

http://nl2.php.net/manual/en/function.nl2br.php输入