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Index of P

Page views

In site statistics software, the total number of times users view a single web page.

Pagerank

A numeric value that represents how popular a web page is based on Google's link analysis calculations. Part of this numeric value is the quality and quantity of links pointing to a web page.

PEAR

The PHP Extension and Application Repository (or PEAR) framework comprises reusable components. These components or "packages" solve specific problems encountered by developers working on PHP-based Web applications.The PEAR site is located at http://www.pear.php.net/

Perl

Perl is one of the original server side scripting languages. It is still popular today.

PFI

Pay-for-inclusions simply involves paying to get your website listed on a specific search engine.

PHP

PHP is a widely-used general-purpose scripting language that is especially well-suited for Web development and can be embedded into HTML.

PNG

PNG is an image file format popular on the Web and elsewhere. It is intended as a replacement for the GIF image format. PNG stands recursively for "PNG's Not GIF" but is commonly referred to as "Portable Network Graphics". PNG is not affected by software patents. Its compression algorithm is slightly better than GIF, and it supports many more image file formats including 24-bit colour and alpha (variable transparency) channels. With the exception of alpha channels, PNG is well-supported in recent graphics software and Web browsers.

Portable Document Format (PDF)

Abbreviation for portable document format. Created by Adobe Systems in its software program Adobe Acrobat as a universal browser. A PDF document uses formatting information from many different desktop publishing applications, such as InDesign and QuarkXPress. Files can be downloaded over the web and viewed page by page, provided the user has installed the necessary plug-in, Adobe Acrobat Reader.

Positioning

In a search engine or directory, the process of ordering URLs so that the most relevant sites appear at the top of search results for a particular query.

Power combination

The first three words in a title tag that, when typed in any combination in a search query, will contain a keyword phrase.

PPC

Pay-per-click (PPC) involves paying for your website to have a prominent position on the relevant search results page of a specific search engine.

Precision

The quality and degree of accuracy with which a search engine lists documents that match a query.

Presentational JavaScript

JavaScript that supplements CSS in it's presentation of data in places where CSS lacks features (for example 'rounded corners').

Procedural programming

A programming methodology involving a linear, 'shopping list' approach to programming. This contrasts with the more abstracted approach of 'Object Oriented Programming'

Proximity search

A search in which users specify that documents returned in search results should have the words (entered into the search query) near each other.