Adding php page to drupal7

I have googled my question many times but i cant find a good solution. I want to add a php page into drupal.

Is there a way to call(perhaps a menu link) a php page within the existing drupal(template) with an include开发者_StackOverflow社区 or something?

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From http://drupal.org/node/1046700

Drupal 7 Core contains a module called "PHP filter". A fresh install of Drupal 7 has this module disabled by default. We need to enable it.

Any page or block text area can include PHP code in drupal, if the PHP filter is enabled and the user has permission to use it.

If you want to add a link to a PHP file completely outside of the drupal CMS, you can do so too.

example)

<a href="http://yoursite.com/your/physical/path/to/a/php/file.php">  
    external PHP file  
</a>

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unable to understand the question completely ... is the PHP page to be used within a module?? perhaps use 'file' and 'file path' in the hook_menu of your module to include the page .... or if its in block level would suggest the previous answer from @DownDown ....