How can I replace braces with <?php ?> in php file?

Question

I wanna replace braces with in a file with php extension. I have a class as a library and in this class I have three function like these:

Answer 1

How does this work:

process.php:

', $contents);
echo $contents;

bash script:

process.php < my_file.php

Note that the above works by doing a one-off search and replace. You can easily modify the script if you want to do this on the fly.

Note also, that modifying PHP code from within PHP code is a bad idea. Self-modifying code can lead to hard-to-find bugs, and is often associated with malicious software. If you explain what you are trying to achieve - your purpose - you might get a better response.