Php 自验证后如何连接到sql
我的表单操作是php_self，因此它可以验证表单…Php 自验证后如何连接到sql,php,sql,forms,Php,Sql,Forms,我的表单操作是php_self，因此它可以验证表单… 我想做的是在提交表单后，将数据连接并发送到sql…. 我已经导入了我的sql表，表中记录了一些数据…. 那么如何连接到sql？？ 还有我应该在哪里写我的连接sql代码 这是我的php表单代码…… <?php // Start the session session_start(); ?> <!DOCTYPE html> <html lang="en"> <head> <script&g
我想做的是在提交表单后，将数据连接并发送到sql….
我已经导入了我的sql表，表中记录了一些数据….
那么如何连接到sql？？
还有我应该在哪里写我的连接sql代码
这是我的php表单代码……
<?php
// Start the session
session_start();
?>
<!DOCTYPE html>
<html lang="en">
<head>
<script>
function disableSubmit() {
document.getElementById("submit").disabled = true;
}
function activateButton(element) {
if(element.checked) {
document.getElementById("submit").disabled = false;
}
else {
document.getElementById("submit").disabled = true;
}
}
</script>
<title>Page Title Goes Here</title>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="form1.css"/>
</head>
<title>Page Title Goes Here</title>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="form1.css"/>
<body onload="disableSubmit()">
<?php
//define variable and set to empty value
$forenameErr = $surnameErr = $emailErr = $postalAddressErr = $landLineTelNoErr = $mobileTelNoErr = $sendMethodErr = $checkErr ="";
$valid = true;
// if forename is null , make it null , else test_input()
$forename = empty($_POST["forename"]) ? NULL : test_input($_POST["forename"]);
// if surname is null , make it null , else test_input()
$surname = empty($_POST["surname"]) ? NULL : test_input($_POST["surname"]);
// if postalAddress is null , make it null , else test_input()
$postalAddress = empty($_POST["postalAddress"]) ? NULL : test_input($_POST["postalAddress"]);
// if landLineTelNo is null , make it null , else test_input()
$landLineTelNo = empty($_POST["landLineTelNo"]) ? NULL : test_input($_POST["landLineTelNo"]);
// if mobileTelNo is null , make it null , else test_input()
$mobileTelNo = empty($_POST["mobileTelNo"]) ? NULL : test_input($_POST["mobileTelNo"]);
//email
$email = empty($_POST["email"]) ? NULL : test_input($_POST["email"]);
// if sendMethod is null , make it null , else test_input()
$sendMethod = empty($_POST["sendMethod"]) ? NULL : test_input($_POST["sendMethod"]);
if (isset($_POST["submit"])){
//check forename
if($forename === NULL) {
//forename is empty
$forenameErr = "*Forename is required";
$valid = false;
} else {
//check characters
if (!preg_match("/^[a-zA-Z ]*$/",$forename)) {
$forenameErr = "Only letters and white space allowed";
$valid = false;
}
}
//check surname
if($surname === NULL){
//surname is empty
$surnameErr = "*Surname is required";
$valid = false; //false
} else {
//check charaters
if (!preg_match("/^[a-zA-Z ]*$/",$surname)) {
$surnameErr = "*Only letters and white space allowed";
$valid = false;
}
}
//check address
if (!preg_match("/^[a-zA-Z0-9\-\\,. ]*$/", $postalAddress)) {
// check characters
$postalAddressErr = "*Invalid Postal Address";
$valid = false;//false
}
// check if invalid telephone number added
if (!preg_match("/^$|^[0-9]{12}$/",$landLineTelNo)) {
//check number
$landLineTelNoErr = "*Only 12 digit number can be entered";
$valid = false;//false
}
//check valid mobiel tel no
if (!preg_match("/^$|^[0-9]{11}$/",$mobileTelNo)) {
//check number
$mobileTelNoErr = "*Only 11 digit number can be entered";
$valid = false;//false
}
//check valid email
if (isset($email) && !filter_var($email, FILTER_VALIDATE_EMAIL))
{ $emailErr = "*Invalid email format";
$valid = false;//false
}
//check sendMethod
if($sendMethod === NULL){
//send method is empty
$sendMethodErr = "*Contact method is required";
$valid = false; //false
} else {
$sendMethod = test_input($_POST["sendMethod"]);
}
//sendmethod link to information filled
if (isset($sendMethod) && $sendMethod=="email" && $email ==NULL){
$emailErr ="*Email is required ";
$valid = false;
}
if (isset($sendMethod) && $sendMethod=="post" && $postalAddress ==NULL){
$postalAddressErr ="*Postal Address is required ";
$valid = false;
}
if (isset($sendMethod) && $sendMethod=="SMS" && $mobileTelNo ==NULL){
$mobileTelNoErr ="*Mobile number is required ";
$valid = false;
}
if(empty($_POST['agree']) || $_POST['agree'] != 'agree') {
$checkErr ="Please indicate that you have read and agree to the Terms and Conditions and Privacy Policy";
}
//if valid then redirect
if($valid){
$_SESSION['forename'] = $forename;
$_SESSION['surname'] = $surname;
$_SESSION['email'] = $email;
$_SESSION['postalAddress'] = $postalAddress;
$_SESSION['landLineTelNo'] = $landLineTelNo;
$_SESSION['mobileTelNo'] = $mobileTelNo;
$_SESSION['sendMethod'] = $sendMethod;
header('Location: userdetail.php');
exit();
}
} else{
//user did not submit form!
}
//check
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
<div id="wrapper">
<h1>Welcome to Chollerton Tearoom! </h1>
<nav>
<ul>
<li><a href="index.html">Home</a></li>
<li><a href="findoutmore.html">Find out more</a></li>
<li><a href="offer.html">Offer</a></li>
<li><a href="credit.html">Credit</a></li>
<li><a href="#">Admin</a></li>
<li><a href="wireframe.html">WireFrame</a></li>
</ul>
</nav>
<form id = "userdetail" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="POST">
<fieldset id="aboutyou">
<legend id="legendauto">user information</legend>
<p>
<label for="forename">Forename: </label>
<input type="text" name="forename" id="forename" value="<?php echo $forename;?>">
<span class="error"> <?php echo $forenameErr;?></span>
</p>
<p>
<label for="surname">Surname:</label>
<input type="text" name="surname" id="surname" value="<?php echo $surname;?>">
<span class="error"> <?php echo $surnameErr;?></span>
</p>
<p>
<label for="postalAddress">Postal Address:</label>
<input type="text" name="postalAddress" id="postalAddress" value="<?php echo $postalAddress;?>">
<span class="error"> <?php echo $postalAddressErr;?></span>
</p>
<p>
<label for="landLineTelNo">Landline Telephone Number:</label>
<input type="text" name="landLineTelNo" id="landLineTelNo" value="<?php echo $landLineTelNo;?>" >
<span class="error"> <?php echo $landLineTelNoErr;?></span>
</p>
<p>
<label for="mobileTelNo">Moblie:</label>
<input type="text" name="mobileTelNo" id="mobileTelNo" value="<?php echo $mobileTelNo;?>" >
<span class="error"> <?php echo $mobileTelNoErr;?></span>
</p>
<p>
<label for="email">E-mail:</label>
<input type="text" name="email" id="email" value="<?php echo $email;?>">
<span class="error"> </span> <?php echo $emailErr;?> </span>
</p>
<fieldset id="future">
<legend>Lastest news</legend>
<p>
Choose the method you recommanded to recevive the lastest information
</p>
<br>
<input type="radio" name="sendMethod" <?php if (isset($sendMethod) && $sendMethod=="email") echo "checked";?> value="email">
Email
<input type="radio" name="sendMethod" <?php if (isset($sendMethod) && $sendMethod=="post") echo "checked";?> value="post">
Post
<input type="radio" name="sendMethod" <?php if (isset($sendMethod) && $sendMethod=="SMS") echo "checked";?> value="SMS">
SMS
<span class="error"> <?php echo $sendMethodErr;?></span>
</fieldset>
<p><span class="error">* required field.</span></p>
<input type="checkbox" name="terms" id="terms" onchange="activateButton(this)">
I Agree Terms & Coditions
<br><br>
<input type="submit" name="submit" id="submit">
</fieldset>
</form>
</div>
</body>
</html>
函数disableSubmit（）{
document.getElementById（“提交”）.disabled=true；
}
功能激活按钮（元素）{
如果（元素已选中）{
document.getElementById（“提交”）.disabled=false；
}
否则{
document.getElementById（“提交”）.disabled=true；
}
}
页面标题在这里
页面标题在这里
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您应该在$valid内编写SQL代码
让我举例如下：
注意：我使用了默认凭据：Hostname=localhost，username=root，password=''，database name=my_database
您可以参考以下内容：
if（$valid）{
echo“Valid data
”；//调试代码
回声'；
打印（邮政美元）；
出口
/*SQL代码启动*/
$con=mysqli_connect（“本地主机”、“根”、“我的数据库”）；
if（mysqli\u connect\u errno（））{
echo“未能连接到MySQL:”.mysqli_connect_error（）；
}
$sql=“插入到…”；//插入查询
$query=mysqli_query（$con，$sql）或die（mysqli_error（$con））；
/*SQL代码结束*/
if（$query）{//添加此条件。仅当SQL查询成功时才应写入会话
$\会话['forename']=$forename；
$\会话['姓氏]=$姓氏；
..........
$\会话['sendMethod']=$sendMethod；
标题（'Location:userdetail.php'）；
退出（）；
}否则{
回显“无法插入”；
}
}否则{
echo“无效数据
”；//调试代码
回声'；
打印（邮政美元）；
出口
}
希望这有帮助。我需要在表单php页面或userdetail.php页面中编写sql代码？您可以在表单页面本身中编写它。您应该在if（$valid）内尝试在此处调试。让我编辑我的答案。请告诉我你得到了什么。
if($valid){
echo "Valid data<br/>"; // Debugging code
echo '</pre>';
print_r($_POST);
exit;
/* SQL code starts */
$con = mysqli_connect("localhost", "root", "", "my_database");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$sql = "INSERT INTO...."; // Your insert query
$query = mysqli_query($con,$sql) or die(mysqli_error($con));
/* SQL code ends */
if ($query) { // Add this condition. Session should be written only when SQL query is successful
$_SESSION['forename'] = $forename;
$_SESSION['surname'] = $surname;
..........
$_SESSION['sendMethod'] = $sendMethod;
header('Location: userdetail.php');
exit();
} else {
echo "Unable to insert";
}
} else{
echo "Invalid data<br/>"; // Debugging code
echo '</pre>';
print_r($_POST);
exit;
}