Not in PHP's browser address. PHP Solution Ideas

Not in PHP's browser address. Php
I am a novice, want to ask a question, such as I want to modify a PHP website, originally each page should be in. php end, such as www.aaaa.com/man/index.php
This way I can find the man folder from the site and the directory, and then find the index.php page to modify, but now the Address bar address is www.aaaa.com/index.php/man/ddd, there is no. php end. In that case, I couldn't find which page to modify. Want to ask everyone, this is how, how do I find the page to modify, thank you

------Solution--------------------
This is based on the path_info of the Web server.

The usual practice is probably the DDD method of the man class, or, conversely, it can only be said that it is generally the case


Want to modify the program, suggest or see, how to Route forwarding first,,,,
------Solution--------------------
This is generally a single entrance, Only through a index.php to achieve the entire station of the resolution, in fact, this form of more conducive to you to find other. php files, you just need to open the index.php file to see what other. php files have been found for it include or require.

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