can't get variables in function

Question

I have a translate system:

/phps/languages.php

$root = $_SERVER['DOCUMENT_ROOT']; 
if($lang == "en-us"){
    include_once("$root/site-languages/en-us.php"); // include en-us
}

this function: /phps/date.php

function time_difference($date){

$root = $_SERVER['DOCUMENT_ROOT']; 
include_once("$root/phps/languages.php");

echo $language_include_variable; // it is empty

and my page.php that will call date.php and date calls languages.php.

$root = $_SERVER['DOCUMENT_ROOT']; 
include_once("$root/phps/date.php");

The problem is the echo $language_include_variable is null. any ideas?

Where is `$language_include_variable` defined? Can you show us in an example? — Decent Dabbler, Jul 18 '18 at 19:12
@DecentDabbler it is defined in the site-languages/en-us.php. like this: `$language_include_variable = "some text"` — RGS, Jul 18 '18 at 19:13
anything from http://php.net/manual/en/function.error-reporting.php ? — Funk Forty Niner, Jul 18 '18 at 19:14
and where/how is $language_include_variable defined? check if you don't have a variable scoping also. — Funk Forty Niner, Jul 18 '18 at 19:16
@AbraCadaver in the en.us.php and it is working. but the function can't read it. — RGS, Jul 18 '18 at 19:17
https://stackoverflow.com/questions/16959576/reference-what-is-variable-scope-which-variables-are-accessible-from-where-and - being a possible duplicate here. — Funk Forty Niner, Jul 18 '18 at 19:19
`time_difference()` is a function, so I would guess this is a Variable Scope issue — RiggsFolly, Jul 18 '18 at 19:19
@RiggsFolly Your suggested duplicate question doesn't offer an explanation about this particular `include_once` issue. Therefore I'm voting to reopen this question. — Decent Dabbler, Jul 18 '18 at 19:21
@DecentDabbler Judging by the comment on the answer that suggests Scope Issues it does not do to badly. — RiggsFolly, Jul 18 '18 at 19:24

score 1 · Answer 1 · answered Jul 18 '18 at 19:18

1

It's due to include_once. The file will only be included once in the lifetime of the script, and therefore be accessible in the function scope only once.

On subsequent calls of the function the file will not be included anymore and thus the variable will not be in the scope of the function anymore.

answered Jul 18 '18 at 19:18

Decent Dabbler

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I removed all the _once and it works! thanks. – RGS Jul 18 '18 at 19:20

can't get variables in function

1 Answers1

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