Facebook就像链接解析器

Question

Is there any already done php class that could parse a link like Facebook, Google+ or Digg does? To get the title, some text and images from the page? :)

Thanks

Answer 1

index.php

<script type="text/javascript" src="http://ajax.googleapis.com/
ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<style>body
{
font-family:Arial, Helvetica, sans-serif;
font-size:12px;
}
#contentbox
{
width:458px; height:50px;
border:solid 2px #dedede;
font-family:Arial, Helvetica, sans-serif;
font-size:14px;
margin-bottom:6px;
}
.img
{
float:left; width:150px; margin-right:10px;
text-align:center;
}
#linkbox
{
border:solid 2px #dedede; min-height:50px; padding:15px;
display:none;
}</style>
<script type="text/javascript">
$(document).ready(function()
{
$("#contentbox").keyup(function()
{
var content=$(this).val();
var urlRegex = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig;
// Filtering URL from the content using regular expressions
var url= content.match(urlRegex);

if(url.length>0)
{
$("#linkbox").slideDown('show');
$("#linkbox").html("<img src='link_loader.gif'>");
// Getting cross domain data 
$.get("urlget.php?url="+url,function(response)
{
// Loading <title></title>data
var title=(/<title>(.*?)<\/title>/m).exec(response)[1];
// Loading first .png image src='' data 
var logo=(/src='(.*?).png'/m).exec(response)[1];
$("#linkbox").html("<img src='"+logo+".png' class='img'/><div><b>"+title+"</b><br/>"+url)
});

}
return false;
});
});
//HTML Code
<textarea id="contentbox"></textarea>
<div id="linkbox"></div>
</script>

urlget.php

<?php
if($_GET['url'])
{
$url=$_GET['url'];
echo file_get_contents($url);
}
?>

source