函数内的PHP变量

Question

I have not been able to find a good example for this particular case. Most people who ask this question have a more complex use case and so the answer usually involves a complex solution. I simply have a few variables at the beginning of the script that need to be available throughout all the code including several functions. Otherwise I would have to set it in each function, and considering this is a user set value, changing it all throughout the code is just not possible.

<?php
//**** Example User Config Area **** 
$name = "blah";
$tag = "blah";
//**********************************

function taco() {
    echo $name; //this function needs to use these user set variables
    echo $tag;
}
?>

Everyone says NOT to use global variables. Is this a case where global variables actually DOES make sense? If not, what should I do here to make this work?

It should be noted that those values do not change in the program. They only change if the user edits them. Like a DB location or a username etc.

Answer 1

Just pass these variables:

function taco($name, $tag) {
    echo $name;
    echo $tag;
}
// and
taco($name, $tag);