Random Web Tools

How to Properly Test if jQuery is Loaded

Dan — Fri, 05 Mar 2010 19:49:26 +0000

I saw many people claiming you can test for the existence of jQuery like this:

if (jQuery) {
	// jQuery exists, put code here
} else {
	// jQuery not loaded, put code here
}

This is incorrect. It will work fine if jQuery is loaded, but if it's not loaded, javascript will throw an error and the code to execute if jQuery is not loaded will probably not be processed. The modification to fix this is simple:

if (window.jQuery) {
	// jQuery exists, put code here
} else {
	// jQuery not loaded, put code here
}

How to Hide Android WebView Highlight Border (or change it’s color)

Dan — Sat, 27 Feb 2010 23:20:37 +0000

Here's one that had me at a loss for a long time that I just figured out. You can easily remove the highlight border (the border that comes up when an element is focused) or change it's color in a WebView with CSS! The WebKit-specific property "-webkit-tap-highlight-color" is what you're looking for.

The following line will disable it on a page completely:

1
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* {
	-webkit-tap-highlight-color: rgba(0, 0, 0, 0);	
}

rgba() is just like rgb(), but it takes a 4th parameter for opacity. It's my belief that this would probably work for iPhone WebView's as well, since both Chrome and Safari are based off of WebKit.

Windows 7 Icons Download

Dan — Wed, 24 Feb 2010 00:54:15 +0000

Looking to use Windows 7 icons in your applications or extensions? Download the following file to conveniently access them.

Download Windows 7 Icons Zip File (8.91 MB)

PHP RSS Parser – RSS Reader Class for PHP

Dan — Mon, 22 Feb 2010 05:49:24 +0000

Just had to create a quick RSS parser for PHP and thought I’d post my solution. The implementation and class follows.


$rss = new RSSReader('http://news.google.com/?output=rss');
while ($rss -> hasNext())
	print_r($rss -> next());
?>


class RSSReader {
	var $xml = null;
	var $pos = 0;
	var $count = 0;
 
	function __construct($feed_url) {
		$this -> load_url($feed_url);
	}
 
	function load_url($feed_url) {
		$this -> load_string(file_get_contents($feed_url));
	}
 
	function load_string($feed_string) {
		$this -> xml = simplexml_load_string(str_replace('content:encoded', 'content_encoded', $feed_string));
		$this -> pos = 0;
		$this -> count = count($this -> xml -> channel -> item);
	}
 
	function get_title() {
		return $this -> xml -> channel -> title;
	}
 
	function get_link() {
		return $this -> xml -> channel -> link;
	}
 
	function get_pubdate() {
		return $this -> xml -> channel -> pubdate;
	}
 
	function hasNext() {
		return $this -> count > $this -> pos;
	}
 
	function next() {
		$obj = $this -> xml -> channel -> item[$this -> pos++];
		return array(
			'title' => (string) $obj -> title,
			'link' => (string) $obj -> link,
			'description' => (string) $obj -> description,
			'content' => (string) $obj -> content_encoded,
			'pubDate' => strtotime($obj -> pubDate),
		);
	}
}
?>

Chrome Extensions: History Button, Extensions Button, Downloads Button

Dan — Thu, 04 Feb 2010 06:46:45 +0000

I just created some very simple extensions for Chrome shortly after I taught myself how to create extensions.

As I said, they're VERY simple, but I find them useful, so I figured it wouldn't hurt to share them.

Each extension is a simple lightweight extension that adds a shortcut button to your browser for quick access to your history, extensions, or downloads. It either opens a new tab, or switches to the respective tab if you already have it open in a tab you're not using.

You could nearly accomplish the same thing if you made a bookmark, but this assures you won't open multiple tabs and I like to keep some things separate from the bookmarks bar.

Chrome Extensions Button

Chrome History Button

Chrome Downloads Button

MySQL Select Count Distinct – Counting and Identifying Duplicate Records

Dan — Fri, 22 Jan 2010 03:23:10 +0000

Looking for a [relatively] quick way to identify duplicate records in a table and list how many records there are for each duplicate? Look no further.

In my case, I’ve got a table named Searches which tracks queries on one of my sites. I wanted to check the top queries, so I used this SQL statement:

SELECT COUNT(*) AS repetitions, Query
FROM Searches
GROUP BY Query
HAVING repetitions > 1
ORDER BY repetitions DESC;

There you have it. A simple, effective way to count and label duplicate records.

30 Google Wave Invites

Dan — Thu, 19 Nov 2009 01:44:50 +0000

I've got 30 more Google Wave invites to give away. Leave a comment with your email and I'll send them. First come, first serve.

This is actually a nomination and it may take a little while before you get your actual invite.

From now on, you must retweet the bitly URL (http://bit.ly/2rwYsG) on twitter and reply to me in order to get an invite.

Example tweet:

@xoise Free Google Wave invites: http://bit.ly/2rwYsG #GoogleWave

Then put a comment in the comment section and don't forget your email (doesn't have to be public).

How to retrive Yahoo Backlinks count with PHP

Dan — Sun, 08 Nov 2009 19:38:27 +0000

Here's a simple script to retrieve the approximate number of backlinks Yahoo has for a site. The function and how to call it follows:

function get_yahoo_backlinks_count($url) {
	$appid = ''; // get this from https://developer.apps.yahoo.com/wsregapp/
	$url = "http://search.yahooapis.com/WebSearchService/V1/webSearch?appid=$appid&query=site:$url&results=1";
 
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_REFERER, 'http://www.yoursite.com/');
	$response = curl_exec($ch);
	curl_close($ch);
 
	$xml = simplexml_load_string($response);
	return $xml -> attributes() -> totalResultsAvailable;
}
 
echo get_yahoo_backlinks_count('google.com');

How to retrieve Google Backlinks count with PHP

Dan — Sun, 08 Nov 2009 19:12:06 +0000

Here’s a simple script to retrieve the approximate number of backlinks Google has for a site. The function and how to call it follows:

function get_google_backlinks_count($url) {
	$url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=site:$url";
 
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_REFERER, 'http://www.yoursite.com/');
	$response = curl_exec($ch);
	curl_close($ch);
 
	$json = json_decode($response);
	return $json -> responseData -> cursor -> estimatedResultCount;
}
 
echo get_google_backlinks_count('yahoo.com');

How to fix linux not sending mail problem: Sendmail stat=Deferred: Connection refused by [127.0.0.1]

Dan — Wed, 28 Oct 2009 20:22:43 +0000

I recently experienced a problem where my server was not sending mail from the PHP mail() function or the command line "mail" function. After looking through /var/log/maillog, I was able to see that the local 127.0.0.1 mail server was refusing the connection. Some Google searching landed me at the following thread, where the third post did the trick:

http://www.howtoforge.com/forums/showthread.php?t=16246