08/03/18 22:54:51
$last_name =addslashes($_POST['last_name']);
$first_name =addslashes($_POST['first_name']);
$age =addslashes($_POST['age']);
から
$sql = <<<EOS
INSERT INTO member
(
last_name,
first_name,
age
)
VALUES
(
'$last_name',
'$first_name',
$age
)
EOS;
です。