how to avoid repeating the same php functions

Question

index.php

<?php
include ('db.php');  // db connections
include ('functions.php');  //  I need some functions
?>

The same php functions I need via jquery.ajax call.

$.post('functions.php', {vars}, function(data) {
    console.log(data);
});

I'm getting error - $db is not defined because $db.php is not included in functions.php;

If I include db.php inside functions.php I'm getting error inside index.php - $db is already declared.

for now I repeat the same functions inside functions.php and an another file with db.php included, and I call it with ajax, but hope there is a more clever solution.

Include your db inside your functions.php, and only inside your functions.php. Use require_once on both includes, so it will always load only once. — aynber
– aynber, Commented Sep 20, 2018 at 18:11
It seems odd that you would be requesting functions.php directly via ajax. Wouldn't that file only contain function definitions and not any directly-executed code? — Patrick Q
– Patrick Q, Commented Sep 20, 2018 at 18:12
@PatrickQ, functions.php gets some data from database, proccessed via js Is that odd?. — user7461846
– user7461846, Commented Sep 20, 2018 at 18:16
@aynber, do you mean include db inside functions and functions inside index with require_once? — user7461846
– user7461846, Commented Sep 20, 2018 at 18:19

Sama · Accepted Answer · 2018-09-20 19:07:26Z

1

You should use require_once at first of of your files, if a file already loaded so the require_once not load it again.

answered Sep 20, 2018 at 19:07

Sama

261 silver badge4 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

how to avoid repeating the same php functions

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related