automatic website updates in perl

I want to create a script that will modify a website automatically through a cron job. The script will have designated and ultimately random keywords to interchange with words already in the webpage. For instance I may have a word "house" in the webpage and through this script I can exchange everyword "house" with a random word from a list associated with "house" in the script. I want to be able to do this for unlimited words but only on one page of the website (index). any help is appreciated.

Mitch
Phoenix, AZ
MasterMitchAsked:
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TintinConnect With a Mentor Commented:
As far as I'm aware, Google will reindex any page that has expired or the content has changed.
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ozoCommented:
After you change all the "house" to a random word, there will no longer be "house" in the page, so what should happen the next time the cron job runs?
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MasterMitchAuthor Commented:
I had thought of that so perhaps it should not so much look for a word but a number associated with a word. So that 0=house which is in index.php So the script could know to look for "0" which would be a static figure
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TintinCommented:
Why use Perl to update a PHP page?  Much better to use PHP to read the random keyword itself.
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MasterMitchAuthor Commented:
I am not opposed to it, I thought a perl script that was on a cron job would allow me to automate it better and not have to keep tabs on updating the page. I didnt know one could create a cron php
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TintinCommented:
Why do you want to use cron?  Do you want to have a new random keyword every hour (or whatever interval you define)?
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MasterMitchAuthor Commented:
yes I want to constantly have new words from a list be placed into my webpage for selected keywords..I have read this will get google to constantly reindex the pages becuase the page is being changed so often.
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MasterMitchAuthor Commented:
do you know of a solution to this idea?
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Adam314Commented:
If the page is dynamic with PHP, will google still reindex it?
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Adam314Commented:
As long as Tintin is correct, you could just have the PHP be dynamic.  Set the expires header for 1 hour every time...

#Of course the date would be calculated as now+1 hour, in this format...
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");

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MasterMitchAuthor Commented:
I appreciate the concept of the reindexing and such. I knew that google would reindex if the content has changed which is why I want this kind of script. it could be php/perl I dont care really. I am trying to make the page change automatically based on certain specific words and punctuation to get reindexed often. So that is the solution I need. Can anyone suggest a solution to that specific need.
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MasterMitchAuthor Commented:
I had to give a grade, I had to close the question. these are good suggestions but they didnt actually answer my question
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