提交表单后，它可以将所有数据发送到sql数据库。
现在，我想做的是在管理页面中显示所有数据库数据
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($_POST["sendMethod"]);
//check
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
if (isset($_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') {
$checkErr ="Please indicate that you have read and agree to the Terms and Conditions and Privacy Policy";
}
//Sever side script
if($valid){
/* SQL code starts */
$con = mysqli_connect("localhost", "root", "", "chollerton");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
if (is_null($_POST["email"]) || $_POST["email"]=="") {
$email = 'NULL';
} else {
$email = ($_POST["email"]);
}
if (is_null($_POST["postalAddress"]) || $_POST["postalAddress"]=="") {
$postalAddress = 'NULL';
} else {
$postalAddress = ($_POST["postalAddress"]);
}
if (is_null($_POST["landLineTelNo"]) || $_POST["landLineTelNo"]=="") {
$landLineTelNo = 'NULL';
} else {
$landLineTelNo = ($_POST["landLineTelNo"]);
}
if (is_null($_POST["mobileTelNo"]) || $_POST["mobileTelNo"]=="") {
$mobileTelNo = 'NULL';
} else {
$mobileTelNo = ($_POST["mobileTelNo"]);
}
$sql = $sql = "INSERT INTO ct_expressedinterest (forename, surname, email, postalAddress, landLineTelNo, mobileTelNo ,sendMethod) VALUES ('$forename', '$surname', '$email', '$postalAddress', '$landLineTelNo', '$mobileTelNo' ,'$sendMethod')";
$query = mysqli_query($con,$sql) or die(mysqli_error($con));
//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'] = $sendMethod;
header('Location: userdetail.php');
exit();
}else {echo "Unable to insert";
}
} else{
//user did not submit form!
}
}
?>
<div id="wrapper">
<h1>Welcome to Chollerton Tearoom! </h1>
<nav>
<ul>
<li><a href="index.html">Home</a></li>
<li><a href="findoutmore.html">Find out more</a></li>
<li><a href="offer.html">Offer</a></li>
<li><a href="credit.html">Credit</a></li>
<li><a href="admin.php">Admin</a></li>
<li><a href="wireframe.html">WireFrame</a></li>
</ul>
</nav>
<form id ="userdetail" action="<?php echo htmlspecialchars($_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>
这是我的 admin.php 代码
<?php
include 'database_conn.php'; //make db conncection
$sql = "SELECT expressInterestID, forename, surname, email, postalAddress, landLineTelNo, mobileTelNo ,sendMethod FROM ct_expressedinterest";
$queryresult = mysqli_query($conn,$$sql) or die(mysql_error($conn));
while ($row = mysqli_fetch_assoc($queryresult)) {
$expressInterestID = $row['expressInterestID'];
$forename = $row['forename'];
$surname = $row['surname'];
$email = $row['email'];
$postalAddress = $row['postalAddress'];
$landLineTelNo = $row['landLineTelNo'];
$mobileTelNo = $row['mobileTelNo'];
$sendMethod = $row['sendMethod'];
echo"<div> $expressInterestID , $forename, $surname, $email,$postalAddress, $landLineTelNo, $mobileTelNo, $sendMethod </div>";
}
mysqli_free_result($queryresult);
mysqli_close($conn);
?>
包含此 admin.php 以连接到 chollerton 数据库。 这是连接到表的 database_conn
<?php
$con = mysqli_connect("localhost", "root", "", "chollerton");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
else {echo "conect success";}
?>
谁能告诉我我的代码有什么问题吗？
管理页面显示数据库中的数据。
请帮助我并为我提供解决方案代码...
非常感谢!!
最佳答案
您的 admin.php 代码有问题。您使用 mysqli_query($conn,$$sql) 而不是 mysqli_query($conn,$sql)。
试试这段代码:
<?php
include 'database_conn.php'; //make db conncection
$sql = "SELECT expressInterestID, forename, surname, email, postalAddress, landLineTelNo, mobileTelNo ,sendMethod FROM ct_expressedinterest";
$queryresult = mysqli_query($conn, $sql) or die(mysql_error($conn));
while ($row = mysqli_fetch_assoc($queryresult)) {
$expressInterestID = $row['expressInterestID'];
$forename = $row['forename'];
$surname = $row['surname'];
$email = $row['email'];
$postalAddress = $row['postalAddress'];
$landLineTelNo = $row['landLineTelNo'];
$mobileTelNo = $row['mobileTelNo'];
$sendMethod = $row['sendMethod'];
echo"<div> $expressInterestID , $forename, $surname, $email,$postalAddress, $landLineTelNo, $mobileTelNo, $sendMethod </div>";
}
mysqli_free_result($queryresult);
mysqli_close($conn);
?>
关于php - 如何在我的管理页面中显示数据库，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36568871/