ShrinkTheWeb PHP WebSite Thumbnail Code

Pre-requisites

PHP4 installed with GD 1.8 or later compiled

Sample WebSite Thumbnail PHP Code - API Functions

/**
 * ShrinkTheWeb Url Thumbnail Utility Package
 *
 * Version: 1.0.2
*/
function shrinktheweb($size, $url){
	$access_key_id="[Access_Key_Id]"; // Replace [Access_Key_Id] with your actual Access_Key_Id
	$secret_access_key="[Secret_Access_Key]"; // Replace [Secret_Access_Key] with your actual Secret_Access_Key
	$default_image="http://www.neobus.net/images/thumbs/nothumb.jpg"; // Enter the default image you would like shown if no thumbnail
	$cache=0; // Set to 1, if you want to save thumbnails locally (config function get_html_snippet also)
	
	$url_enc = urlencode($url);

$request_url =  "http://www.shrinktheweb.com/xino.php?"
					. "Service=".           "ShrinkWebUrlThumbnail"
					. "&Action=".           "Thumbnail"
					. "&STWAccessKeyId=".   $access_key_id
					. "&Size=" .            $size
					. "&u=" .				$secret_access_key
					. "&Url=" .             $url;

$line=make_http_request($request_url);
	$num_matches = preg_match('/<[^:]*:Thumbnail\\s*(?:Exists=\"((?:true)|(?:false))\")?[^>]*>([^<]*)<\//', $line, $matches);
	if($num_matches == 1){
		$exists = $matches[1];
		$thumbnail = $matches[2];
	}else{
		$exists = NULL;
		$thumbnail = NULL;
	}
	
	$has_default_image = ($default_image != NULL) && (strlen($default_image) > 0);
	if ($thumbnail != NULL && ($exists || !$has_default_image)){
			return get_html_snippet($url,$thumbnail,1,$exists,$cache);
	}
	return get_html_snippet($url,$default_image,1,$exists,$cache);
}

// Make an http request to the specified URL and return the result
function make_http_request($url){
	$lines = file($url);
	return implode("", $lines);
}

// Returns an HTML snippet which will display the thumbnail image url and link to the website.
// Returns an error code via XML and display error image or queue image upon failure
function get_html_snippet($url, $image, $stw, $exists, $cache) {
	$homedir="[homedir]"; // Replace [homedir] with the path to store thumbnails (i.e. /home/username/public_html/cached/images/)
	$link = "";
	$navigable_url = (stristr($url,"http://") == $url ) ? $url : "http://".$url;
	if ($image) {
		if($stw==1) {$link = "<img border='0' src='$image' alt='$url'/>";}
		else {$link = "<a href='$navigable_url'><img border='0' src='$image' alt='$url'/></a>";}
		$nothumb=substr_count(strtolower($image),"nothumb");
		if($exists=="true" && $cache==1) {
			// Cache the thumbnail
			$subdom="$homedir".substr($url,4).".jpg";
			if(substr(strtolower($url),0,4)=="www.") {$dom=$subdom;}
			else {$dom = "$homedir".$url.".jpg";}
	//		echo $subdom."(".iif(file_exists($subdom),"1","0")."),".$dom."(".iif(file_exists($dom),"1","0")."),".$stw."<br>";
			if((!file_exists($dom) || !file_exists($subdom)) && $stw==1 && $nothumb==0)
			{
				// Store ShrinkTheWeb Thumbnails
				$imagedata = @imagecreatefromjpeg($image); if($imagedata!='') {imagejpeg($imagedata,$dom,100);}
			}
		}
	}
	return $link;
}

Sample WebSite Thumbnail PHP Code - Basic Operations

/**
 * ShrinkTheWeb Url Thumbnail Sample Code
 *
 * Version: 1.0.0
*/
$homedir="[homedir]"; // Replace [homedir] with the path to store thumbnails (i.e. /home/username/public_html/cached/images/)

// Calculate time to retrieve images (avoid STW hanging remote website, if STW is unresponsive)
list($usec,$sec)=explode(' ', microtime()); $get_begin=(float)$sec+(float)$usec; 
if(@fsockopen("www.shrinktheweb.com",80, $errno, $errstr, 2.0)) {$stw=1;}else{$stw=0;}
list($usec,$sec)=explode(' ', microtime()); $get_end=(float)$sec+(float)$usec; 
$timetoget=round($get_end-$get_begin, 5);
if($stw==1) {if($timetoget<=0.25) {$stw=1;} else {$stw=0;}} // Opened but was it fast enough?

// We need to pass $domain into the following...
unset($thumbnail); unset($thexists); $dom=""; $subdom="";
$subdom=substr($domain,7); // remove http://
preg_match("/[^\.\/]+\.[^\.\/]+$/", $domain, $domtld); // Get domain.tld.jpg
if(substr(strtolower($subdom),0,4)=="www.") {$dom=substr($subdom,4);}
else {$dom=$domtld[0];}
if(file_exists($homedir.$subdom.".jpg")) // If the full subdomain thumbnail exists, show it
{$thumbnail = "<a href='#'><img src='".$homedir.$subdom.".jpg' border='0' align='left'></a>";}
elseif(file_exists($homedir.$dom.".jpg")) // Otherwise, show the domain.tld thumbnail, if it exists
{$thexists=1; $thumbnail = "<a href='#'><img src='".$homedir.$dom.".jpg' border='0' align='left'></a>";}
elseif($stw==1) {$thumbnail = shrinktheweb('sm', $subdom);} // Otherwise, grab it from ShrinkTheWeb
else {$thumbnail = "<a href='#'><img src='".$homedir."nothumb.jpg' border='0' align='left'></a>";} // If ShrinkTheWeb is down, show this default thumbnail

Download a zip file containg the sample code here: stw-sample-PHP-code_v1-0-0.zip

IMPORTANT: Remember to change the [key_id] and [key] values in the URL to your access key ID and secret key, respectively. These can be found when you first login (in the lobby).

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