[php] hoe kan ik 2 variables samenvoegen

<?php
$totaal = $data['vraag'].$i;

echo $totaal;
?>

<?php
$totaal = $data['vraag'].$i;
 
echo $totaal;
?>

	for($i = 1; $i < 5; $i++)
	{
		echo "</tr><tr>";
		echo "<td>". $data['vraag'] ."</td><td><input type='radio' name='poll' value='". $i ."'></td>";
	}

for($i = 1; $i < 5; $i++)
	{
		echo "</tr><tr>";
		echo "<td>". $data['vraag'] ."</td><td><input type='radio' name='poll' value='". $i ."'></td>";
	}

foreach($this->data as $key =>$value)
{
    print $value."\n";
    $this->item .= $value.$this->separation;
}

foreach($this->data as $key =>$value)
{
    print $value."\n";
    $this->item .= $value.$this->separation;
}

class data_file
{	private $path = "../data/" ;
	var $file = "../data/" ;
	var $data = "";
	var $save = false;
	var $item = "";
	var $separation = "";
	function setData($data) {
        $this->data = $data;
    }

class data_file
{	private $path = "../data/" ;
	var $file = "../data/" ;
	var $data = "";
	var $save = false;
	var $item = "";
	var $separation = "";
	function setData($data) {
        $this->data = $data;
    }