Looping class, for template engine kind of thing - php

Question

I am updating my class Nesty so it's infinite but I'm having a little trouble.... Here is the class:
<?php
Class Nesty
{
// Class Variables
private $text;
private $data = array();
private $loops = 0;
private $maxLoops = 0;
public function __construct($text,$data = array(),$maxLoops = 5)
{
// Set the class vars
$this->text = $text;
$this->data = $data;
$this->maxLoops = $maxLoops;
}
// Loop function
private function loopThrough($data)
{
if( ($this->loops +1) > $this->maxLoops )
{
die("ERROR: Too many loops!");
}
else
{
$keys = array_keys($data);
for($x = 0; $x < count($keys); $x++)
{
if(is_array($data[$keys[$x]]))
{
$this->loopThrough($data[$keys[$x]]);
}
else
{
return $data[$keys[$x]];
}
}
}
}
// Templater method
public function template()
{
echo $this->loopThrough($this->data);
}
}
?>
Here is the code you would use to create an instance of the class:
<?php
// The nested array
$data = array(
"person" => array(
"name" => "Tom Arnfeld",
"age" => 15
),
"product" => array (
"name" => "Cakes",
"price" => array (
"single" => 59,
"double" => 99
)
),
"other" => "string"
);
// Retreive the template text
$file = "TestData.tpl";
$fp = fopen($file,"r");
$text = fread($fp,filesize($file));
// Create the Nesty object
require_once('Nesty.php');
$nesty = new Nesty($text,$data);
// Save the newly templated text to a variable $message
$message = $nesty->template();
// Print out $message on the page
echo("<pre>".$message."</pre>");
?>
Here is a sample template file:
Dear <!--[person][name]-->,
Thanks for contacting us regarding our <!--[product][name]-->. We will try and get back to you within the next 24 hours.
Please could you reply to this email to certify you will be charged $<!--[product][price][single]--> for the product.
Thanks,
Company.
The problem is that I only seem to get "string" out on the page... :(
Any ideas?

Answer 1

if(is_array($data[$keys[$x]]))
{
$this->loopThrough($data[$keys[$x]]);
}
else
{
return $data[$keys[$x]];
}
You need to return from the first if statement.
if(is_array($data[$keys[$x]]))
{
return $this->loopThrough($data[$keys[$x]]);
}
else
{
return $data[$keys[$x]];
}
This will get you a result back when you recurse. You're only getting "string" back right now because that key is only 1 level deep in your array structure.