PHP variable in variable

Question

I have set an array in my config file that I use global in my functions.
This works fine, but now I want to pass the name of this array as a @param in my function.

// in config file:
$album_type_arr = array("appartamento", "villa");   

global $album_type_arr; // pull in from db_config
echo $album_type_arr[0];

function buildmenu($name) {
    $test = global $name . "_arr";
    echo $test[0];
}
buildmenu("album_type");

Can't you just pass your array into your function directly? buildmenu($album_type_arr); — Andy Shellam
– Andy Shellam, Commented Mar 24, 2010 at 11:11
maybe but I need that name for other stuff, values etc. tnx anyway. — TunaFFish
– TunaFFish, Commented Mar 24, 2010 at 11:19

Kevin Vaughan · Accepted Answer · 2010-03-24 11:09:54Z

4

You're looking for variable variables:

http://www.php.net/manual/en/language.variables.variable.php

function buildmenu($name) {
    $test = $name . "_arr";
    global ${$test};
    echo ${$test}[0];
}

answered Mar 24, 2010 at 11:09

Kevin Vaughan

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Nicolò Martini · Accepted Answer · 2010-03-24 11:18:08Z

0

You can use "variable variables". This works:

function buildmenu($name) {
   global ${$name. '_arr'};
   $test = ${$name. '_arr'};
   echo $test[0];
}

answered Mar 24, 2010 at 11:18

Nicolò Martini

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