问题描述
有没有办法像facebook一样从URL提取数据?
Is there any way to extract data from url like facebook does?
我引用了许多链接，但这是使用php代码.这- http://www.99points.info/2010/07/facebook-like-extracting-url-data-with-jquery-ajax-php/
I refered many links but this is using php code. This- http://www.99points.info/2010/07/facebook-like-extracting-url-data-with-jquery-ajax-php/
http://www.9lessons. info/2010/06/facebook-like-extracting-url-data-with.html
www.webinfopedia.com/extract-meta-data-from-url-using-php.html
www.webinfopedia.com/extract-meta-data-from-url-using-php.html
我想这样实现.我如何在asp.net mvc3应用程序中实现这一点?
I want to implement like this. how can i implement this in my asp.net mvc3 application?
我刚刚引用了这个-www.achari.in/facebook-like-url-data-extract-using-jquery在这种情况下，我不了解他们在php代码中所做的事情，谁能解释这段代码，他们在这方面做了什么?
I just refered this -www.achari.in/facebook-like-url-data-extract-using-jqueryin this i dont understand what they have done in php code,can anyone explain this code, what they have done in this?
在此， 具有index.php文件
In this, index.php file having
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>achari.in - Demo - Facebook Like URL data Extract Using jQuery PHP and Ajax</title>
<link rel="stylesheet" href="css/style.css" type="text/css">
<script type="text/javascript" src="js/jquery-1.2.6.min.js"></script>
<script type="text/javascript" src="js/jquery.livequery.js"></script>
<script type="text/javascript" src="js/jquery.watermarkinput.js"></script>
</head>
<script type="text/javascript">
$(document).ready(function(){
// delete event
$('#attach').livequery("click", function(){
if(!isValidURL($('#url').val()))
{
alert('Please enter a valid url.');
return false;
}
else
{
$('#load').show();
$.post("includes/fetch.php?url="+$('#url').val(), {
}, function(response){
$('#loader').html($(response).fadeIn('slow'));
$('.images img').hide();
$('#load').hide();
$('img#1').fadeIn();
$('#cur_image').val(1);
});
}
});
// next image
$('#next').livequery("click", function(){
var firstimage = $('#cur_image').val();
$('#cur_image').val(1);
$('img#'+firstimage).hide();
if(firstimage <= $('#total_images').val())
{
firstimage = parseInt(firstimage)+parseInt(1);
$('#cur_image').val(firstimage);
$('img#'+firstimage).show();
}
});
// prev image
$('#prev').livequery("click", function(){
var firstimage = $('#cur_image').val();
$('img#'+firstimage).hide();
if(firstimage>0)
{
firstimage = parseInt(firstimage)-parseInt(1);
$('#cur_image').val(firstimage);
$('img#'+firstimage).show();
}
});
// watermark input fields
jQuery(function($){
$("#url").Watermark("http://");
});
jQuery(function($){
$("#url").Watermark("watermark","#369");
});
function UseData(){
$.Watermark.HideAll();
$.Watermark.ShowAll();
}
});
function isValidURL(url){
var RegExp = /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;
if(RegExp.test(url)){
return true;
}else{
return false;
}
}
function confirmQuit()
{
var response = confirm('do you wish to close window !');
if(response === true)
{
return true;
}
else {
return false;
}
}
</script>
<body>
<div align="center">
<br clear="all" /><br clear="all" />
<div style="font-size:30px;">Facebook Like URL data Extract Using jQuery PHP and Ajax</div>
<br clear="all" />
<a style="color:#000000; font-size:14px" href="#">Back To Tutorial</a>
<br clear="all" />
<input type="hidden" name="cur_image" id="cur_image" />
<div class="wrap" align="center">
<div class="box" align="left">
<div class="head">Link</div>
<div class="close" align="right">
<div class="closes" onclick="if(confirmQuit() == true) { window.close(); }"></div>
</div>
<br clear="all" /><br clear="all" />
<input type="text" name="url" size="64" id="url" />
<input type="button" name="attach" value="Attach" id="attach" />
<br clear="all" />
<div id="loader">
<div align="center" id="load" style="display:none"><img src="images/load.gif" /></div>
</div>
<br clear="all" />
</div>
</div>
</div>
<br clear="all" />
</body>
</html>
以上代码是ui的一部分
above code is ui part and
fetch.php
<?php
$url = $_REQUEST['url'];
$url = checkValues($url);
function checkValues($value)
{
$value = trim($value);
if (get_magic_quotes_gpc())
{
$value = stripslashes($value);
}
$value = strtr($value, array_flip(get_html_translation_table(HTML_ENTITIES)));
$value = strip_tags($value);
$value = htmlspecialchars($value);
return $value;
}
function fetch_record($path)
{
$file = fopen($path, "r");
if (!$file)
{
exit("Problem occured");
}
$data = '';
while (!feof($file))
{
$data .= fgets($file, 1024);
}
return $data;
}
$string = fetch_record($url);
/// fecth title
$title_regex = "/<title>(.+)<\/title>/i";
preg_match_all($title_regex, $string, $title, PREG_PATTERN_ORDER);
$url_title = $title[1];
/// fecth decription
$tags = get_meta_tags($url);
// fetch images
$image_regex = '/<img[^>]*'.'src=[\"|\'](.*)[\"|\']/Ui';
preg_match_all($image_regex, $string, $img, PREG_PATTERN_ORDER);
$images_array = $img[1];
?>
<div class="images">
<?php
$k=1;
for ($i=0;$i<=sizeof($images_array);$i++)
{
if(@$images_array[$i])
{
if(@getimagesize(@$images_array[$i]))
{
list($width, $height, $type, $attr) = getimagesize(@$images_array[$i]);
if($width >= 50 && $height >= 50 ){
echo "<img src='".@$images_array[$i]."' width='100' id='".$k."' >";
$k++;
}
}
}
}
?>
<!--<img src="ajax.jpg" alt="" />-->
<input type="hidden" name="total_images" id="total_images" value="<?php echo --$k?>" />
</div>
<div class="info">
<label class="title">
<?php echo @$url_title[0]; ?>
</label>
<br clear="all" />
<label class="url">
<?php echo substr($url ,0,35); ?>
</label>
<br clear="all" /><br clear="all" />
<label class="desc">
<?php echo @$tags['description']; ?>
</label>
<br clear="all" /><br clear="all" />
<label style="float:left"><img src="images/prev.png" id="prev" alt="" /><img src="images/next.png" id="next" alt="" /></label>
<label class="totalimg">
Total <?php echo $k?> images
</label>
<br clear="all" />
</div>
我不了解php，所以有人可以帮助我找到此解决方案吗?
I dont know php so can anybody help me to find this solution?
在上面的代码中，他们使用了此功能
In above code they use this function
function fetch_record($path)
{
$file = fopen($path, "r");
if (!$file)
{
exit("Problem occured");
}
$data = '';
while (!feof($file))
{
$data .= fgets($file, 1024);
}
return $data;
}
有人可以告诉我这段代码到底是什么打开文件的用途是什么，这是用来读取url索引文件的吗?
can anybody tell me what exactly in this codewhat is use of file open in this, is this for reading url index file??
推荐答案
很遗憾，我之前发布的页面上的链接已死，但现在已修复.
The link on the page I posted before was unfortunately dead but it is fixed now.
http://nalgorithm.wordpress.com/2011/12 /05/embedded-url-representation/
正如我在此处所述，我正在开发此工具的服务版本，以便其他Web应用程序可以仅通过(jquery)和服务调用来使用它.
As I stated there, I am working on the service version of this tool so that other webapps can make use of it just by (jquery) and a service call.
这篇关于如何从asp.net mvc3中的facebook之类的URL中提取数据?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！