$arr = array(
    array("ID", "fname", "lname", "Email"),
    array(1, "Peter", "Andersen", "peter@gmail.com"),
    array(2, "John", "Miller", "john@gmail.com"),
    array(3, "Thomas", "Swift", "thomas@gmail.com")
);

for($i=0; $i<count($arr); $i++){
    echo $arr[$i][0] . " " .
    $arr[$i][1] . " " .
    $arr[$i][2] . " " .
    $arr[$i][3] ."<br>";
}