I took it upon myself to see if I could make a random video selector for youtube videos. The problem I am having is that every url that is randomly generated doesn’t exist on youtube. I’ve found that a video ID is eleven characters long, and contains alphanumeric characters plus the underscore and the hyphen. I have a method that makes such an ID, but when That ID is inserted into a URL, it never exists. The methods that find out if a video with x ID exists work because if I pass them a known Video ID, they say it does exist, and If I pass them garbage, they say it doesn’t exist. I tried a loop to call find_video over 100 times, but it still failed to find a video.
My question is, Why does the video that is randomly generated never exist?
Source code is below.
[code]
<?phpfunction random(){
$anarray = [“a”,“b”,“c”,“d”,“e”,“f”,“g”,“h”,“i”,“j”,“k”,“l”,“m”,“n”,“o”,“p”,“q”,“r”,“s”,“t”,“u”,“v”,“w”,“x”,“y”,“z”,“A”,“B”,“C”,“D”,“E”,“F”,“G”,“H”,“I”,“J”,“K”,“L”,“M”,“N”,“O”,“P”,“Q”,“R”,“S”,“T”,“U”,“V”,“W”,“X”,“Y”,“Z”,“1”,“2”,“3”,“4”,“5”,“6”,“7”,“8”,“9”,“0”,"_","-"];
$num = rand(0, 63);
$url = array($anarray[$num]);
return $url[0];
}
function get_http_response_code($theURL) {
$headers = get_headers($theURL);
return substr($headers[0], 9, 3);
}
function getvid(){
$st;
$vid = ([]);
for($i = 0; $i <= 10; $i++){
array_push($vid, random());
}
$st = implode("|", $vid);
$good = str_replace("|", "", $st);
return $good;
}
function does_vid_exist($vid){
$videoID = $vid;
$string = “http://www.youtube.com/oembed?url=http://www.youtube.com/watch?v=$videoID&format=json”;
$code = get_http_response_code ($string);
if ($code == "404") {
return false;
} else {
return true;
}}
function find_video($v){
$vid = $v;
if (does_vid_exist($vid) == true)
{
return $vid;
} else {
return “Video Not Found”;
}
}
?>
Random Youtube Video<style type="text/css">
::selection{ background-color: #E13300; color: white; }
::moz-selection{ background-color: #E13300; color: white; }
::webkit-selection{ background-color: #E13300; color: white; }
body {
background-color: #fff;
margin: 40px;
font: 13px/20px normal Helvetica, Arial, sans-serif;
color: #4F5155;
}
a {
color: #003399;
background-color: transparent;
font-weight: normal;
}
h1 {
color: #444;
background-color: transparent;
border-bottom: 1px solid #D0D0D0;
font-size: 19px;
font-weight: normal;
margin: 0 0 14px 0;
padding: 14px 15px 10px 15px;
}
code {
font-family: Consolas, Monaco, Courier New, Courier, monospace;
font-size: 12px;
background-color: #f9f9f9;
border: 1px solid #D0D0D0;
color: #002166;
display: block;
margin: 14px 0 14px 0;
padding: 12px 10px 12px 10px;
}
#body{
margin: 0 15px 0 15px;
}
p.footer{
text-align: right;
font-size: 11px;
border-top: 1px solid #D0D0D0;
line-height: 32px;
padding: 0 10px 0 10px;
margin: 20px 0 0 0;
}
#container{
margin: 10px;
border: 1px solid #D0D0D0;
-webkit-box-shadow: 0 0 8px #D0D0D0;
}
</style>
<div id="container">
<iframe width="1280" height="720" src="//www.youtube.com/embed/<?php echo getvid();
?>"frameborder="0" allowfullscreen></iframe>
<iframe width="1280" height="720" src="//www.youtube.com/embed/<?php echo find_video("RkkAgnnBdIE");
?> "frameborder="0" allowfullscreen></iframe>
<iframe width="1280" height="720" src="//www.youtube.com/embed/<?php echo find_video("Not a Video ID");
?> "frameborder="0" allowfullscreen></iframe>