Clear Cache of Drupal 7 with Custom Code

In my Drupal 7 Website, I have called an Ajax function by the click of a  button to do some Database modifications by different queries. Everything goes well but in the end I need to remove the cache also via code. My file is in /templates folder. I have tried various search functions of drupal to clear cache but nothing works.

Can any drupal 7 expert guide that how to clear the cache.

Note:  I am working on my custom functionality to Revert the Page contents to the last state. Everything goes well but when  I clear the cache then user will be able to see fresh content otherwise not. So I need to clear cache via my ajax code.

Looking forward for reply.

Thanks
Yuri BoyzSoftware EngineerAsked:
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MishaProgrammerCommented:
Do you read this article?

https://www.drupal.org/docs/7/administering-drupal-7-site/clearing-or-rebuilding-drupals-cache

There is some methods to remove cashe in other situation, if I correct understand your question.
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Yuri BoyzSoftware EngineerAuthor Commented:
Yes I have already checked it. But let me test the PHP Code mentioned.
IS there any other update?
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MishaProgrammerCommented:
And what about javascript?

cache_clear_all()
drupal_flush_all_caches()

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If you wanr to drop specifics caches, you can try something like this:

ache_clear_all('*', 'cache', TRUE);
    cache_clear_all('*', 'content', TRUE);
    cache_clear_all('*', 'cache_page', TRUE);
    cache_clear_all('*', 'cache_menu', TRUE);
    cache_clear_all('*', 'cache_filter', TRUE);
    cache_clear_all('*', 'cache_view', TRUE);

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Yuri BoyzSoftware EngineerAuthor Commented:
Ok let me check this.
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Yuri BoyzSoftware EngineerAuthor Commented:
I have checked your last command but it cannot resolve the issue.
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Yuri BoyzSoftware EngineerAuthor Commented:
thanks for this.
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