Remotely Download Google AJAX Libraries Using PHP

By  on  

I don't know how to use all of the JavaScript libraries but perusing their code is interesting. If I'm looking to code something I'll look at how each of the other libraries accomplishes the task. The problem is that you need to go out and download each one. And of course they're all on different development schedules so you'd also need to make sure to grab the latest version of the library. Instead of manually accomplishing that task, I've chosen create a script that does all of that for me.

The PHP

//settings
$dir = 'js-libs/';
$url = 'http://code.google.com/apis/ajaxlibs/documentation/index.html';

//open file
$content = get_content($url);
echo 'Retrieved page from Google.';

//parse
$regex = '/http:\/\/ajax.googleapis.com\/ajax\/libs\/.*.js/isU';

//match?
preg_match_all($regex,$content,$matches);

//make sure there are no repeated files
$js_files = array_unique($matches[0]);

//download every file and save locally
foreach($js_files as $file) {
	//download
	$content = get_content($file);
	//save
	$filename = str_replace(array('http://ajax.googleapis.com/ajax/libs/','/'),array('','-'),$file);
	file_put_contents($dir.$filename,$content);
	//
	echo 'saving ',$file;
}

//function to grab content from a url
function get_content($url) {
	$ch = curl_init();
	curl_setopt($ch,CURLOPT_USERAGENT,'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13');
	curl_setopt($ch,CURLOPT_URL,$url);
	curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
	curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,5);
	$content = curl_exec($ch);
	curl_close($ch);
	return $content;
}

Pow! One quick script to get you all of the popular JavaScript libraries in 10 seconds. You may not know how to use each library but it sure doesn't hurt to have them around.

Recent Features

Incredible Demos

  • By
    MooTools-Like Element Creation in jQuery

    I really dislike jQuery's element creation syntax. It's basically the same as typing out HTML but within a JavaScript string...ugly! Luckily Basil Goldman has created a jQuery plugin that allows you to create elements using MooTools-like syntax. Standard jQuery Element Creation Looks exactly like writing out...

  • By
    Image Data URIs with PHP

    If you troll page markup like me, you've no doubt seen the use of data URI's within image src attributes. Instead of providing a traditional address to the image, the image file data is base64-encoded and stuffed within the src attribute. Doing so saves...

Discussion

  1. I should note that I run this from the command line.

  2. Mohamed Jama

    Nice script David! did you redesign your site?! keep up the good work mate :)

  3. Nice reminder to think things through and do the extra mile to save time in the future.

    The url has changed in the last four years: https://developers.google.com/speed/libraries/devguide. Seems people at google don’t know how to put a permanent redirect into place…

    Regards,

    pepebe

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!