$string = '$a'; $file = file [uk2.php.net]('file.txt');
if (in_array [uk2.php.net]($string,$file))
{
// exists
}
else
{
$fp = fopen [uk3.php.net]('file.txt', 'ab');
if ($fp)
{
fwrite [uk3.php.net]($fp,$string);
fclose [uk3.php.net]($fp);
}
}
Not tested, but should give you some pointers.
dc
