CSV file - new Coumns are not formed - PHP
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I am trying to create a CSV file lyk dis:

Require this:
Name surname<br/>disha goyal

Code goes lyk dis:
    <?php
    $fp = fopen('filse.csv', 'w');

    fwrite($fp, 'Name');
    fwrite($fp, "\t");
    fwrite($fp, "Surname");
    fwrite($fp, "\n");
    fwrite($fp, 'disha');
    fwrite($fp, "\t");
    fwrite($fp, 'goyal');

    fclose($fp);
    ?>`

Output is lyk dis:
Namesurname
dishagoyal

pls help....