Assign Anchor IDs Using PHP
Last week, I challenged my readers to create a PHP script that finds anchors in an HTML document and assigns an ID to the element IF the element doesn't have an ID already. Jeremy Parrish stepped up to the challenge.
The PHP
function anchor_fix($anchor)
{
// the match comes as an array
// the whole match (what we want) is the 0th element
if (! preg_match('/\sid="/i', $anchor[0])) {
return preg_replace('/name="([^"]*)"/i', 'id="$1" $0', $anchor[0]);
} else {
// already has an id!
return $anchor[0];
}
}
/* usage */
echo preg_replace_callback('/<a[^>]*>/i', 'anchor_fix', file_get_contents('page.html'));
The Result
<body>
<b>
<a
name="stuff">this is an anchor</a> some text... <a name="another">another one...</a>
</b>
<div><a id="thing" name="other">another thing</a>
</div>
</body>
... becomes ...
<body>
<b>
<a
id="stuff" name="stuff">this is an anchor</a> some text... <a id="another" name="another">another one...</a>
</b>
<div><a id="thing" name="other">another thing</a>
</div>
</body>
Great job Jeremy!
![9 Mind-Blowing Canvas Demos]()
The <canvas> element has been a revelation for the visual experts among our ranks. Canvas provides the means for incredible and efficient animations with the added bonus of no Flash; these developers can flash their awesome JavaScript skills instead. Here are nine unbelievable canvas demos that...
![Serving Fonts from CDN]()
For maximum performance, we all know we must put our assets on CDN (another domain). Along with those assets are custom web fonts. Unfortunately custom web fonts via CDN (or any cross-domain font request) don't work in Firefox or Internet Explorer (correctly so, by spec) though...
![Introducing MooTools ElementSpy]()
One part of MooTools I love is the ease of implementing events within classes. Just add Events to your Implements array and you can fire events anywhere you want -- these events are extremely helpful. ScrollSpy and many other popular MooTools plugins would...
![Duplicate the jQuery Homepage Tooltips Using Dojo]()
The jQuery homepage has a pretty suave tooltip-like effect as seen below:
Here's how to accomplish this same effect using Dojo.
The XHTML
The above HTML was taken directly from the jQuery homepage -- no changes.
The CSS
The above CSS has been slightly modified to match the CSS rules already...
