file flusers1 txt count for arr explode substr -1 array array nickname

$f = file("./flusers1.txt");
$c = count($f);
for( $i = 0; $i < $c; $i++ )
{
	$arr = explode(" - ", substr($f[$i], 0, -1));
	$array[$i] = array(
						'nickname' => $arr[0],
						'mail' => $arr[1],
						'name' => $arr[2],
						'number' => $arr[3][0]=='-'?substr($arr[3], 2):$arr[3]
						);
}