gainEXP2 함수가 작동을 안하는데 왜그런걸까요??

session_start();

if ($_SERVER["REQUEST_METHOD"] == "POST") {
$email=$_SESSION["ss_email"];
$query = "select * from t1_members where email='$email' limit 1";
$result = mysql_query ($query);
$rows = mysql_fetch_array($result);

//print_r2($rows);
if($_POST['_exp']){
    echo $_exp=$_POST['_exp'];
    //gainEXP($_exp);
    gainEXP2($_exp);
};

function gainEXP2($gain){
    echo "경험치는 :".$gain;
}

 

gainEXP2 함수가 작동을 안하는데 왜그런걸까요??

 

 

원래 경험치 올리는 로직인데요 문제 없을까요??

function gainEXP( $gain ){
    echo "test";
    $query = "select * from t1_members where email='$email' limit 1";
    $result = mysql_query ($query);
    $rows = mysql_fetch_array($result);
    
    $Exp += $rows['exp'];
    $MaxExp = $rows['maxExp'];
    $Remain = $rows['remain'];

    $Exp += $gain;
    if($Exp >= $MaxExp){
        $Remain = $Exp - $MaxExp;  //remain 1레벨 총량
        //LevelUp($Remain);
    }
}