my function in folder extra_functions doesn't work

[tips007]

to display some records from sql table, i created my function file named aaa_function.php
if i put it to module folder, it works,

but i need this function for many pages, so i put it to the folder /includes/functions/extra_functions/
but it doesn't work

any help?

[Ajeh]

The Extra directory is auto loading ...

Where are you using it from, Catalog or Admin?

How are you using it?

[tips007]

i created a very simple code, such as

$sql = "select * from " . zen_table_name. " where products_id='" . (int)$_GET['products_id'] . "' ";
$my_query = $db->Execute($sql);
$my_display = $my_query->fields['column_x'];
...

i want $my_display to display on many pages, such as main page, product info page, product listing page, in attributes ...

i put it to modules/attributes.php, it displays on product info page
but i'd like to put it to extra function folder, then i can use it on other page too?

[Ajeh]

Did you write that file as:

<?php
function blah_blah {
// stuff here
}

[DrByte]

Like Ajeh said, if it's a function, you need to write it as a function by wrapping the word "function" around it along with a function name, and passed parameters, and opening+closing braces etc.

PHP manual for functions: http://www.php.net/manual/en/functions.user-defined.php

[philip937]

surely where products_id='" . (int)$_GET['products_id'] will only work on a product page ?

[Ajeh]

(int)$_GET['products'] is not immediately available to your function ...

You need to write your function to accept the products_id ...

function my_function($product_id) {
// blah blah do something here
}

then use it as something, if there is a return value, as:

$something = my_function((int)$_GET['products_id']);

Or, if it is just to perform a task as:

my_function((int)$_GET['products_id']);