Meta Keyword Generator

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Views: 467 | Replies: 4

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Join Date: Jun 2008

Posts: 2

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phpmine

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Meta Keyword Generator

Jun 29th, 2008

Hello you PHP Community! I am looking to make an automatic meta keyword generator based on an array of phrases. It is more my site that is under construction, PHPMine. Go to the "Q and A" section and you'll see a series of questions there, five in total. right now the system simply grabs all the words there, filters though common words, and then spits out the words as keywords. I would like some advice on how to set it up in this way:

puts all the words in an array and counts their frequency
creates an array of two words phrases and counts their frequency
does the same for 3 word phrases
spits out the top 25 keywords from the array generated

maybe someone has already cooked up this nasty script. thanks in advance guys!

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Join Date: Jun 2008

Location: Phoenix, AZ

Posts: 601

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R0bb0b

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Practically a Master Poster

Re: Meta Keyword Generator

Jun 29th, 2008

This is how I would generate those arrays

 Help with Code Tags 
 php Syntax (Toggle Plain Text) 
//$keywordsarray is the array that contains said keywords
 
$twowordphrases = array();
//generate two word phrases
for($i = 0; $i < count($keywordsarray); $i += 2)
{
	if(isset($keywordsarray[$i + 1]))
	{
		$twowordphrases[] = $keywordsarray[$i] . " " . $keywordsarray[$i + 1];
	}
}
 
$threewordphrases = array();
//generate three word phrases
for($i = 0; $i < count($keywordsarray); $i += 3)
{
	if(isset($keywordsarray[$i + 2]))
	{
		$threewordphrases[] = $keywordsarray[$i] . " " . $keywordsarray[$i + 1] . " " . $keywordsarray[$i + 2];
	}
}
//$keywordsarray is the array that contains said keywords

$twowordphrases = array();
//generate two word phrases
for($i = 0; $i < count($keywordsarray); $i += 2)
{
	if(isset($keywordsarray[$i + 1]))
	{
		$twowordphrases[] = $keywordsarray[$i] . " " . $keywordsarray[$i + 1];
	}
}

$threewordphrases = array();
//generate three word phrases
for($i = 0; $i < count($keywordsarray); $i += 3)
{
	if(isset($keywordsarray[$i + 2]))
	{
		$threewordphrases[] = $keywordsarray[$i] . " " . $keywordsarray[$i + 1] . " " . $keywordsarray[$i + 2];
	}
}

Last edited by R0bb0b : Jun 29th, 2008 at 4:27 pm.

“Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” - Dr. Seuss

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Join Date: Jun 2008

Posts: 2

Reputation: phpmine is an unknown quantity at this point

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phpmine

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Newbie Poster

Re: Meta Keyword Generator

Jun 29th, 2008

ah i see and now i cycle through the array and see how many times that phrase comes up right? AWESOME! I think i was trying to do this all through one pass but I'll have to create 4 loops, one that create the phrases ( the snippet you created) and then I'll have to go through each and count the number of times the phrase is found. right?

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Join Date: Jun 2008

Location: Phoenix, AZ

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R0bb0b

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Re: Meta Keyword Generator

Jun 29th, 2008

Right, you just cycle through the two and three word arrays just like you do the one word array.

“Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” - Dr. Seuss

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Join Date: Sep 2005

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digital-ether digital-ether is offline

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Re: Meta Keyword Generator

Jul 1st, 2008

•

Originally Posted by R0bb0b

This is how I would generate those arrays
Help with Code Tags

php Syntax (Toggle Plain Text)
//$keywordsarray is the array that contains said keywords
 
$twowordphrases = array();
//generate two word phrases
for($i = 0; $i < count($keywordsarray); $i += 2)
{
	if(isset($keywordsarray[$i + 1]))
	{
		$twowordphrases[] = $keywordsarray[$i] . " " . $keywordsarray[$i + 1];
	}
}
 
$threewordphrases = array();
//generate three word phrases
for($i = 0; $i < count($keywordsarray); $i += 3)
{
	if(isset($keywordsarray[$i + 2]))
	{
		$threewordphrases[] = $keywordsarray[$i] . " " . $keywordsarray[$i + 1] . " " . $keywordsarray[$i + 2];
	}
}
//$keywordsarray is the array that contains said keywords $twowordphrases = array(); //generate two word phrases for($i = 0; $i < count($keywordsarray); $i += 2) { if(isset($keywordsarray[$i + 1])) { $twowordphrases[] = $keywordsarray[$i] . " " . $keywordsarray[$i + 1]; } } $threewordphrases = array(); //generate three word phrases for($i = 0; $i < count($keywordsarray); $i += 3) { if(isset($keywordsarray[$i + 2])) { $threewordphrases[] = $keywordsarray[$i] . " " . $keywordsarray[$i + 1] . " " . $keywordsarray[$i + 2]; } }

I wouldn't jump 2, and 3 words though. Just have one loop, and then take 1,2,3 words from the current word and put them into lists. That way you get each possible phrase. The current misses those that don't start with multiples of 2 and 3.

Probably good to also discard any keyword phrase that includes common words, or words less then or equal to 2 maybe 3 chars.

2 and 3 word phrases won't work so well unless you have a large body of text to compare to so you'd probably want to take your phrases to your database and do the comparison in mysql on an index for your whole site. I know its intensive, but it is worth it if you cache well.

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