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Extract Keywords From A Text String With PHP

29th July 2009 - 4 minutes read time

A common issue I have come across in the past is that I have a CMS system, or an old copy of Wordpress, and I need to create a set of keywords to be used in the meta keywords field. To solve this I put together a simple function that runs through a string and picks out the most commonly used words in that list as an array. This is currently set to be 10, but you can change that quite easily.

The first thing the function defines is a list of "stop" words. This is a list of words that occur quite a bit in English text and would therefore interfere with the outcome of the function. The function also uses a variant of the slug function to remove any odd characters that might be in the text.

Some Useful String Functions In JavaScript

27th December 2007 - 4 minutes read time

Here are a few of the built in JavaScript functions available.

To get the length of a string use the length variable. This returns the number of characters in a string.

  1. var str = 'abcdef';
  2. str.length; // returns 6

The charAt function will return the character at the point specified in the parameter. So to get the first character of a string use: