Why do I "love" PHP or reassigning variables)

    1. if ( is_numeric ($ email) &&! empty ($ email)) {
    2.     $ email = $ this-> query ("SELECT email FROM users WHERE id =". $ email);
    3.     if ($ email && mysql_num_rows ($ email)> 0) {
    4.         $ email = mysql_fetch_row ($ email);
    5.     $ email = $ email [0];
    6.     }
    7. }

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