如何在php中循环父目录？

Question

There are all these resources for recursively looping through sub directories, but I haven't found ONE that shows how to do the opposite.

This is what I want to do...

<?php

// get the current working directory

// start a loop

    // check if a certain file exists in the current directory

    // if not, set current directory as parent directory

// end loop

So, in other words, I'm searching for a VERY specific file in the current directory, if it doesn't exist there, check it's parent, then it's parent, etc.

Everything I've tried just feels ugly to me. Hopefully someone has an elegant solution to this.

Thanks!

Answer 1

Try to create a recursive function like this

function getSomeFile($path) {
    if(file_exists($path) {
        return file_get_contents($path);
    }
    else {
        return getSomeFile("../" . $path);
    }
}