update data?

Question

//------------------------------------------------------------------------------
class ES_FileReader_CT1
//------------------------------------------------------------------------------
{
// for DB manipulation
var $ST;
var $kW;
var $hz;

function ReadFile()
{
$File = 'CT1.txt';
$FILE = fopen($File,"r");

while($buffer = fgets($FILE,1024))
{
$token = explode(' ',$buffer);
$this->ST = $token[0];
$this->kW = $token[1];
$this->hz = $token[2];


}

fclose($FILE);
}
}


function updateFile()
{

$File = 'CT1.txt';

$FILE = fopen($File,"w");

fclose($FILE);

}

there is something missing in update function but I can't figure it out..
In function ReadFile() i already displayed the data on html form..can someone help me with update function so the data can be updated...tq

Answer 1

all "updatefile()" is doing is opening the file for write, then closing it again. you need to rewrite the data back to it, or append it, whatever your program requires.