How to add custom php page in wordpress?

Question

I am making custom CRUD method in WordPress so i need to add custom php page in WordPress. There is no one option like a template in add new page option. so how can i do it?

Answer 1

1/ Create custom template

    <?php
/*
Template Name: Your_Template_Name
*/

// YOUR PHP

2/ Create PAGE in Back Office with YOUR_TEMPLATE

OR

https://codex.wordpress.org/Creating_Options_Pages