API - "Chunkie"

class CChunkie {
 	var $_tpl;
	var $_tplvars = array();
	var $_ds;
	var $_de;
	
	function CChunkie($template = '', $ds = '[+', $de = '+]') {
		$this->_tpl = $template;
		$this->_ds = $ds;
		$this->_de = $de;
	}
	
	function ClearVars() {
		$this->_tplvars = array();
	}
	
	function CreateVars($value = '', $key = '', $path = '') {
		$keypath = !empty($path) ? $path . "." . $key : $key;
	    if (is_array($value)) { 
			foreach ($value as $subkey => $subval) {
			 $this->CreateVars($subval, $subkey, $keypath);
            }
		} else { 
			$this->_tplvars[$this->_ds.$keypath.$this->_de] = $value;
		}
	}
	
	function AddVar($name, $value) {
		$this->CreateVars($value,$name);
	}
	
	function AddPost() {
		$this->CreateVars($_POST,"post");
	}
	
	function AddGet() {
		$this->CreateVars($_GET,"get");
	}
	
	function Render() {
		# print_r($this->_tplvars, true); // remove # for debug
		return str_replace(array_keys($this->_tplvars), array_values($this->_tplvars),$this->_tpl);
	}
	

}

<h1>[+title+]</h1>

[+txt.string1+]

<form method="post">
   <input type="text" name="text" value="[+post.text+]" />
   <input type="submit" name="submit" value="[+send+]" />   
</form>

[+txt.string2+]

$title= "This is a title";
$send = "Click Me";

$array_text = array (
     'string1'=>"this is string one",
     'string2'=>"this is string two"
)

$objTpl = new CChunkie($template); // $template is a string
$objTpl->AddVar("send", $send);
$objTpl->AddVar("txt", $array_text);
$objTpl->AddPost(); // adds the $_POST object variables, you can use AddGet() to add all the $_GET ones.
$output = $objTpl->Render();