When you use IFrame and your doctype is XHTML 1.0 Strict, then you cannot pass the W3C Markup Validation test. You always get errors.

The errors are like:-

there is no attribute “src”
there is no attribute “scrolling”
there is no attribute “frameborder”
there is no attribute “height”
there is no attribute “width”
there is no attribute “allowtransparency”
there is no attribute “title”
element “iframe” undefined

Solution

Use object tag instead of iframe.

Example

Here is an iframe code for Facebook Like Box:-

<iframe src="http://www.facebook.com/plugins/likebox.php?profile_id=62473189912&width=300&height=255&connections=10&stream=false&header=false&locale=en_US"  scrolling="no" frameborder="0" style="border: medium none; overflow: hidden; width: 300px; height: 255px;" allowTransparency="true"></iframe>

Using the above IFrame code in your website gives errors when you validate with W3C.

So, the solution is to use Object tag. You will not get the validation errors by using Object.

<object style="border: medium none; overflow: hidden; width: 300px; height: 255px;"  data="http://www.facebook.com/plugins/likebox.php?id=62473189912&amp;width=300&amp;height=255&amp;connections=10&amp;header=false"></object>

It’s the same case with including Google Maps in websites.

Hope this helps. Thanks.

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I want to create a dynamic table with a row starting after certain number of columns, i.e. like, i want to create an html table which automatically generate new row after 3 columns in a row.

Solution:

$content = array(1, 2, 3, 4, 5, 6, 7, 8, 9);
<table border="1" width="50%">
<tr>
	<?php
	$counter = 0;
	foreach($content as $data) {
		if($counter != 0 && $counter%3 == 0) {
			?>
			</tr><tr>
			<?php
		}
		?>
		<td>
			<?php echo $data; ?>
		</td>
		<?php
		$counter++;
	}
?>
</tr>
</table>

Here, $content is an array of 9 numbers (1 to 9). The array value can be any. You can have your custom array with your custom values. I have looped through the array and printed data in a html table. I have created new row after 3 columns have been created.

Happy PHPing!

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Meta tags have two possible attributes:

a)

b)

(Note: I have used my name and my links in many of the examples below. Don’t forget to put your own name and description there.)

a) HTTP-EQUIV Tags

Meta tags with an HTTP-EQUIV attribute are equivalent to HTTP headers. Typically, they control the action of browsers, and may be used to refine the information provided by the actual headers. They are:-

Expires

The date and time after which the document should be considered expired.

Content-Type

This gives the character set.

Content-Script-Type

Specifies the default scripting language in a document.

Content-Style-Type

Specifies the default stylesheet language for the document.

Content-language

Used to declare the natural language of the document. May be used by robots to categorize by language. Languages are specified as the pair (language-dialect); here below, English-British (en-GB)

Refresh

Specifies a delay in seconds before the browser automatically reloads the document. Optionally, specifies an alternative URL to load.

Pragma

This tag tells IE not to cache the page.

b) NAME attributes

Meta tags with a name attribute are used for other types which do not correspond to HTTP Headers. They are:-

Robots

Controls web robots on a per-page basis, whether to index a page or not (index/noindex), and whether to follow links on the page or not (follow/nofollow). You can use these in any combination you want.

- index, follow – Default value. Page will be indexed, and links on the page will be followed.

- index, nofollow – Page will be indexed, but any links on the page will not be followed.

- noindex, follow – Page will not be indexed, but links on the page will be followed.

- noindex,nofollow – Page will not be indexed, and links on the page will not be followed.

Description

A short, plain language description of the document. Keep it short and to the point.

Keywords

Keywords are used by search engine to index our document in addition to words from the title and document body. It lets you specify keywords people might use when looking for your site. Enter as many as you can think of, but don’t repeat each word more than once.

Author

The author’s name.

Copyright

A copyright statement.

Rating

A way to say that your site is family safe.

Revisit-after

This tells the search engine to come back again and re-index your site every 10 days (in case of this example)

Distribution

Classification

What kind of directory heading does this come under.

Reply-to

Enjoy!!!

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