PHP - Web 表单提交按钮不起作用
[英]PHP - Web Form submit button not working
问题描述
我正在创建一个使用 PHP 连接到数据库的表单。 我的表单是半功能的，但是当我尝试通过按提交按钮来测试它时，它说在网页上找不到文件。
这是 default.php 的代码：
<!DOCTYPE HTML> <html> <head>
<title>PHP FORM - 08246 ACW PART 2</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="http://www.w3schools.com/lib/w3.css"> <style> .error {color:
#FF0000;} </style> </head> <body>
<ul class="w3-navbar w3-black w3"> <li><a href="default.php">Home</a></li> <li><a href="changelocationtostaffmember.php">Change location to staff member</a></li> <li><a href="currentlocationofallstaff.php">Current location of all staff</a></li> <li><a href="editpersonaldetailsofstaffmember.php">Edit personal details of staff member</a></li> <li><a href="listalllocationsandshowlistofpeopleinselectedlocation.php">List all locations and show list of people in selected location</a></li> <li><a href="staffmemberandlistlocationsforlast24hours.php">Staff member and list locations for last24 hours</a></li> </ul>
<div class="w3-container"> <h2> Web Form </h2> </div>
<div class="w3-container"> <?php // defining the variables and setting them to empty values $first_nameErr = $SurnameErr = $usernameErr = $passwordErr = $previous_LocationErr = $current_LocationErr = $dateErr = $timeErr = $dErr = $tErr = ""; $first_name = $Surname = $username = $password = $previous_Location = $current_Location = $date = $time = $dErr = $tErr = "";
//----validation----
//first name if($_SERVER["REQUEST_METHOD"] == "POST"){ if(empty($_POST["first_name"])){ $first_nameErr = "First Name is required"; }else{ $first_name = test_input($_POST["first_name"]); //validation checking if(!preg_match("/^[a-zA-Z ]*$/",$first_name)){ $first_nameErr = "Please enter only letter and white space"; } }
//surname if($_SERVER["REQUEST_METHOD"]=="POST"){ if(empty($_POST["Surname"])){ $SurnameErr="Surname is required"; }else{ $Surname=test_input($_POST["Surname"]); //validation checking if(preg_match("/^[a-zA-Z ]*$/",$Surname)){ $SurnameErr = " Please enter only letters and white spaces"; } }
//date and time date_default_timezone_set('UTC');
$d = str_replace('/',',', '03/05/2016'); $t = str_replace(':',',', '13:38'); $date = $t.',0,'.$d; $fulldate = explode(',',$date); echo '<br>'; $h = $fulldate[0]; $i = $fulldate[1]; $s = $fulldate[2]; $m = $fulldate[3]; $d = $fulldate[4]; $y = $fulldate[5];
echo date("h-i-s-M-d-Y",mktime($h,$i,$s,$m,$d,$y))."<br>"; echo strtotime ("03/05/2016 13:38");
function test_input($data){ $data=trim($data); $data=stripslashes($data); $data=hmtlspecialchars($data); return $data; } ?>
<?php//database
#server info
#$servername = "SQL2008.net.dcs.hull.ac.uk";
#$username = "ADIR\463142";//userid
#$dbname = "rde_463132"; $servername = "SQL2008.net.dcs.hull.ac.uk"; $username = "username"; $myDB = "examples"; $myLocation = "location";
// Create connection $conn = new mysqli($servername, $username, $myLocation); // Check connection if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error); }
// Create database $sql = "CREATE DATABASE myDB"; if ($conn->query($sql) === TRUE) {
echo "Database created successfully"; } else {
echo "Error creating database: " . $conn->error; }
$conn->close(); ?>
<p><span class="error">* are required field.</span></p> <form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>"> First Name: <input type="text" name="first_name"><br> <span class="error">* <?php echo $First_nameErr;?></span> <br> Surname: <input type="text" name="Surname"><br> <span class="error">* <?php echo $SurnameErr;?></span> <br> Username: <input type="text" name="username"><br> <span class="error">* <?php echo $username;?></span> <br> Current Location: <input type="text" name="current_Location"><br> <span class="error">* <?php echo $current_Location;?></span> <br> Date: <input type="text" name="date"><br> <span class="error">* <?php echo $date;?></span> <br> Time: <input type="text" name="time"><br> <span class="error">* <?php echo $time;?></span> <br>
<input type="submit" name="submit" value="Submit"> </form>
</div> </body> </html>
我是这门语言的新手，仍在学习。 任何帮助或建议将不胜感激。
谢谢
2 个解决方案
解决方案1
0 2016-05-04 11:33:08
文件不正确，表单操作 url 指向 default.php 但您的文件名是 defaul.php
如果 default.php 而不是 defaul.php
为了更好的处理：
在浏览器的控制台中，请检查 http 调用，如果它是 500，您可以看到它显示的错误（检查日志/启用调试模式）
解决方案2
0 已采纳 2016-05-04 11:35:14
您使用什么版本的 PHP 来运行此脚本？
正如我所看到的，您正在使用“注册全局变量”设置来获取 $_POST 数据： http : //php.net/manual/en/security.globals.php
如果你有 PHP 5.4+ 你应该使用 $_POST['form_field_name1'] ... $_POST['form_field_nameN'] 来获取表单数据。 添加检查：
if (!empty($_POST)) { /* Form validation data goes here */ }
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