CODEWITHSUNDEEP
php
dlofrodloh
dlofrodloh

Reputation: 1744

Make all global variables available in a function

My project uses a template system to put the pages together and there are many variables involved. Usually the template is loaded directly from an index file and not from within a function.

However, at the moment I'm simply making this function to display an error page:

function show_error($error){
    global $root;
    global $template;
    $content=$root."/includes/pages/error_page.html.php";
    include $root . $template;
    exit();
}

However, since the template uses many variables outside the scope of this function, it just comes up with lots of variable not found errors.

Is there a way of simply making all global variables available inside of a function? I'd rather not individually declare all possible variables inside as it would be quite tedious and because I am often adding more variables in the template.

Upvotes: 0

Views: 105

Answers (2)

Alexey Chuhrov
Alexey Chuhrov

Reputation: 1787

You can use extract() to import all globals into function scope

$foo = 'bar'; // global scope
function test(){
    extract($GLOBALS, EXTR_OVERWRITE, 'g'); // import with prefix to avoid mess
    echo $g_foo; // outputs: bar
}

Read more: http://php.net/manual/ru/function.extract.php

Upvotes: 1

kainaw
kainaw

Reputation: 4334

If $content and $root are in global context, you can access them inside the function by adding this to the function before you use them:

global $content, $root;

Upvotes: 0

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