Use function to change PHP variable name - php

Question

kindly need your help,
I'm trying to use function to change the name of a PHP variable. I tried to change $name to $graph1, $graph2 ... $graph31. Here's the code I made:
<?php
function bar($name, $label, $value) {
return
$name = new BAR_GRAPH("pBar");
$name->values = $value;
$name->labels = $label;
$name->labelColor = "white";
$name->labelBGColor = "#282828";
$name->barBorder = "0px";
$name->barColors = "white";
$name->barBGColor = "#282828";
$name->showValues = 0;
$name->percValuesColor = "white";
$name->barColors = "white";
echo $name->create();
}
bar("$graph1","ornamen","$totkakiOrnamen;7");
?>
Unfortunately the code doesn't work, it says:
Notice: Undefined variable: graph in C:\xampp\htdocs\app\process.php
on line 56
I don't know what's wrong. How can I change $name to $graph1, $graph2 ... $graph31 ?
PS: The return code looks weird because I used gerd-tentler's script to generate horizontal bar. http://www.gerd-tentler.de/tools/phpgraphs/?page=introduction

Answer 1

This may or may not be what you are asking but maybe....??
<?php
function bar($name, $label, $value) {
$$name = new BAR_GRAPH("pBar");
$$name->values = $value;
$$name->labels = $label;
$$name->labelColor = "white";
$$name->labelBGColor = "#282828";
$$name->barBorder = "0px";
$$name->barColors = "white";
$$name->barBGColor = "#282828";
$$name->showValues = 0;
$$name->percValuesColor = "white";
$$name->barColors = "white";
$$name->create();
return $$name;
}
$graph1 = bar('graph1',"ornamen","$totkakiOrnamen;7"); ?>
if not, the only other guess is that you are trying to do a variable variable:
http://php.net/manual/en/language.variables.variable.php