I need a help about CLASS

[netdur]

hello readERs!
I try build my own template system... i'm doing fine but I found a sick problem I don't know what to do about... below short of my class

<?php
class temp
{
  function replace($key, $value)
  {
    $str = 'hello world, my name is {NAME} and I like {LIKE}';
    $this->result = str_replace($key, $value, $str);
  }
  function output()
  {
    print($this->result);
  }
}
?>

so if I wrote this

$op = new temp();
$op->replace('{NAME}', 'adel');
$op->output();

will print "hello world, my name is adel and I like {LIKE}"
it's fine but if I wrote this

$op = new temp();
$op->replace('{NAME}', 'adel');
$op->replace('{LIKE}', 'php');
$op->output();

will print "hello world, my name is {NAME} and I like php",
while should print "hello world, my name is adel and I like php"
what the problem about? please help

[rIkLuNd]

Try changing this:

$str = 'hello world, my name is {NAME} and I like {LIKE}';

into this:

// this means:
// if $this->result is empty, then
// $str = 'hello world, my name is {NAME} and I like {LIKE}',
// else it is $this->result

$str = empty($this->result) ? 'hello world, my name is {NAME} and I like {LIKE}' : $this->result;

[ahundiak]

Or move $result to the constructor

class temp
{
  function temp()
  {
    $this->result = 'hello world, my name is {NAME} and I like {LIKE}';
  }
}