$facebookErr = "Dia chi Facebook khong dung dinh dang";
}
}
if (empty($_POST['gender'])) {
$genderErr = "Ban phai chon gioi tinh";
} else {
$gender = kiemtra($_POST['gender']);
}
if ($_POST['trinhdo'] == 0) {
$trinhdoErr = "Ban hay chon trinh do cua Ban";
} else {
$trinhdo = kiemtra($_POST['trinhdo']);
}
// xu ly ngay thang sinh
if (!empty($_POST['ngaysinh'])) {
$ngaysinh = kiemtra($_POST['ngaysinh']);
$tam = explode('/', $ngaysinh);
if (count($tam) != 3) {
$ngaysinhErr = "Ban nhap vao chua dung dinh dang ngay thang";
} else {
if (is_numeric($tam[2]) && is_numeric($tam[1]) && is_numeric($tam[0])) {
if ($tam[1] > 12 || $tam[1] < 1) {
$ngaysinhErr = "Thang phai nho hon 12";
} else {
if ($tam[0] > 31 && $tam[0] < 1) {
$ngaysinhErr = 'Ngay phai nho hon 31';
}
}
} else {
$ngaysinhErr = "Ban phai nhap ngay thang nam la kieu so";
}
<?php
$name = $email = $website = $age = $facebook = $gender = $trinhdo = $ngaysinh = '';
$nameErr = $emailErr = $websiteErr = $ageErr = $trinhdoErr = $facebookErr = $genderErr = $ngaysinhErr = "";
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if (empty($_POST['name'])) {
$nameErr = "Ban phai nhap ten";
} else {
$name = kiemtra($_POST['name']);
// kiem tra name
if (!preg_match("/^[a-zA-Z ]*\$/", $name)) {
$nameErr = "Ten chi duoc chua chu cai va dau cach";
}
}
}
function kiemtra($dulieu)
{
$dulieu = trim($dulieu);
$dulieu = stripslashes($dulieu);
$dulieu = htmlspecialchars($dulieu);
return $dulieu;
}
?>
<form method="POST" action="<?php
echo htmlspecialchars($_SERVER['PHP_SELF']);
?>
">
Ho Ten : <input type="text" name="name" value="<?php
echo $name;
