这是我项目的emp_registration页面。执行刷新时，它将数据插入数据库。
这是我的代码：
<?php
session_start();
if(!isset($_SESSION['username']))
{
header('location:Admin.php');
}
?>
这是我的会话变量
这是在我的注册HTML代码表格下面
<html>
<head>
<title> Employee | Registration</title>
<meta name="viewport" content="device=device-width , initial-scale=1.0">
<!-- Main Css bootstrap -->
<link rel="stylesheet" href="../Components/css/bootstrap.min.css" type="text/css">
<!-- Jquery-ui Plugin Css -->
<link rel="stylesheet" href="../Components/css/jquery-ui.css" type="text/css">
<!-- font aweosome icon set css-->
<link rel="stylesheet" href="../Components/css/font-awesome.min.css" type="text/css">
<!-- animate css -->
<link rel="stylesheet" href="../Components/css/animate.css" type="text/css">
<!-- Main Jquery -->
<script src="../Components/js/jquery_main.js"></script>
<!-- Main Bootstrap -->
<script src="../Components/js/bootstrap.min.js"></script>
<!-- Jquery-ui Plugin -->
<script src="../Components/js/jquery-ui.js"></script>
<!-- Custom js plugin for animate onClick -->
<script src="../Components/js/custom_js.js"></script>
<style>
body{
background-image:url("../Components/images/admin_panel.png");
background-size:cover;
background-repeat:no-repeat;
}
a:hover{
text-decoration:none;
}
.navbar-brand
{
position: absolute;
margin-bottom:100px;
width: 100%;
left: 0;
text-align: center;
margin: auto;
}
.opaque-navbar{
background-color:rgba(0,0,0,0);
transition: background-color .5s ease 0s;
border: 0px;
}
.form-horizontal{
max-width:443px;
margin:0 auto;
}
#imagePreview {
min-width:250px;
height:200px;
margin:0 auto;
background-position: center center;
background-size: cover;
-webkit-box-shadow: 0 0 1px 1px rgba(0, 0, 0, 0.3);
display: inline-block;
}
.btn-width{
min-width:500px;
margin:0 auto;
}
.error{
color:#fff;
margin:0 auto;
margin-left:30%;
}
</style>
<script language="JavaScript" type="application/javascript">
$(document).ready(function(){
$(".error").hide(); });
function validate()
{
if(document.regForm.fname.value == "")
{
$("#fname").before("<span class='error'>Please Enter First Name ! </span>");
document.regForm.fname.focus();
return false;
}
if(document.regForm.lname.value == "")
{
$("#lname").before("<span class='error'>Please Enter Last Name ! </span>");
document.regForm.lname.focus();
return false;
}
var re = /^(([^<>()[']''.,;:'s@'"]+('.[^<>()[']''.,;:'s@'"]+)*)|('".+'"))@(('[[0-9]{1,3}'.[0-9]{1,3}'.[0-9]{1,3}'.[0-9]{1,3}'])|(([a-zA-Z'-0-9]+'.)+[a-zA-Z]{2,}))$/;
if(document.regForm.username.value.trim() == "" || !re.test(document.regForm.username.value))
{
$("#username").before("<span class='error'>Please Provide User Id As A Email Address ! </span>");
document.regForm.username.value="";
document.regForm.username.focus();
return false;
}
if(document.regForm.password.value.trim() == "")
{
$("#password").before("<span class='error'>Please Provide Password !</span>");
document.regForm.password.focus();
return false;
}
var phoneno = /^'d{10}$/;
if(document.regForm.mobile_number.value.trim()=="" || !phoneno.test(document.regForm.mobile_number.value))
{
$("#mobile_number").before("<span class='error'>Please Provide Mobile Number !</span>");
document.regForm.mobile_number.focus();
return false;
}
if(document.regForm.gender.value.trim() == "")
{
$("#gender").before("<span class='error'>Please Select Gender !</span>");
return false;
}
if(document.regForm.gender.value.trim() == "")
{
$("#gender").before("<span class='error'>Please Select Empoyee Type !</span>");
return false;
}
if(document.regForm.birth.value.trim() == "")
{
$("#birth").before("<span class='error'>Please Select Birth Date !</span>");
document.regForm.birth.focus();
return false;
}
if(document.regForm.joining.value.trim() == "")
{
$("#joining").before("<span class='error'>Please Select Joining Date !</span>");
document.regForm.joining.focus();
return false;
}
if(document.regForm.address.value.trim() == "")
{
$("#address").before("<span class='error'>Please Provide Permanent Address !</span>");
document.regForm.address.focus();
return false;
}
if(document.regForm.salary.value.trim() == "")
{
$("#salary").before("<span class='error'>Please Provide Basic Salary !</span>");
document.regForm.salary.focus();
return false;
}
if(document.regForm.state.value.trim() == "")
{
$("#state").before("<span class='error'>Please Select State !</span>");
document.regForm.state.focus();
return false;
}
if(document.regForm.city.value.trim() == "")
{
$("#city").before("<span class='error'>Please Select City !</span>");
document.regForm.city.focus();
return false;
}
if(document.regForm.designation.value.trim() == "")
{
$("#designation").before("<span class='error'>Please Select Designation !</span>");
document.regForm.designation.focus();
return false;
}
if(document.regForm.experaince.value.trim() == "")
{
$("#experaince").before("<span class='error'>Please Select Experiance!</span>");
document.regForm.experaince.focus();
return false;
}
}
</script><!-- end of validation of registration form -->
<script>
$(function() {
$( "#joining" ).datepicker();
});
</script><!-- end of datepicker -->
<script>
$(function() {
$( "#birth" ).datepicker();
});
</script><!-- end of birth datepicker -->
<script>
function display(s1,s2){
var s1 = document.getElementById(s1);
var s2 = document.getElementById(s2);
s2.innerHTML = "";
if(s1.value == "Maharashtra"){
var optionArray = ["Pune|Pune","Mumbai|Mumbai","Nagpur|Nagpur","Nashik|Nashik","Solapur|Solapur","Thane|Thane","Aurangabad|Aurangabad"];
} else if(s1.value == "Gujrat"){
var optionArray = ["Ahmedabad|Ahmedabad","Surat|Surat","Vadodara|Vadodara","Rajkot|Rajkot","Bhavnagar|Bhavnagar","Jamnagar|Jamnagar","Gandhinagar|Gandhinagar"];
} else if(s1.value == "Madhya Pradesh"){
var optionArray = ["Indore|Indore","Bhopal|Bhopal","Jabalpur|Jabalpur","Gwalior|Gwalior","Ujjain|Ujjain","Sagar|Sagar","Dewas|Dewas"];
}else if(s1.value == "Delhi"){
var optionArray = ["New Delgi|New Delhi","Burari|Burari","Karawal Nagar|Karawal Nagar","Mustafabad|Mustafabad","Gokal Pur|Gokal Pur","Mandoli|Mandoli","Dallo Pura","Dallo Pura"];
}else if(s1.value == "Punjab"){
var optionArray = ["Ludhiana|Ludhiana","Amritsar|Amritsar","Jalandhar|Jalandhar","Patiala|Patiala","Bathinda|Bathinda","Ajitgarh|Ajitgarh","Hoshiarpur|Hoshiarpur"];
}else if(s1.value == "Andhra pradesh"){
var optionArray = [,"Visakhapatnam|Visakhapatnam","Vijayawada|Vijayawada","Guntur|Guntur","Nellore|Nellore","Kurnool|Kurnool","Kadapa|Kadapa","Kakinada|Kakinada"];
}else if(s1.value == "karnataka"){
var optionArray = ["Vijayapura|Vijayapura","Bengaluru|Bengaluru","Ballari|Ballari","Chamarajanagar|Chamarajanagar","Mangaluru|Mangaluru","Mysuru|Mysuru","Udupi|Udupi","Chennai|Chennai"];
}
for(var option in optionArray){
var pair = optionArray[option].split("|");
var newOption = document.createElement("option");
newOption.value = pair[0];
newOption.innerHTML = pair[1];
s2.options.add(newOption);
}
}
</script><!-- end of state and city selector -->
<script type="text/javascript">
$(function() {
$("#uploadFile").on("change", function()
{
var files = !!this.files ? this.files : [];
if (!files.length || !window.FileReader) return; // no file selected, or no FileReader support
if (/^image/.test( files[0].type)){ // only image file
var reader = new FileReader(); // instance of the FileReader
reader.readAsDataURL(files[0]); // read the local file
reader.onloadend = function(){ // set image data as background of div
$("#imagePreview").css("background-image", "url("+this.result+")");
}
}
});
});
</script><!-- end of file picker image -->
</head>
<body>
<div class="container">
<header>
<div class="container">
<marquee><center> <a href="admin_panel.php"><h2> Welcome To Tej It Solutions </h2></a></center></marquee>
</div><!-- end of container in header -->
</header> <!-- end of header -->
<nav class="navbar navbar-default opaque-navbar row">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="navbar-collapse collapse" id="collapse">
<a class="navbar-brand animated bounceInDown" style="color:red;"><big> Welcome <?php echo $_SESSION['username']; ?></big> </a>
<br>
<ul class="nav navbar-nav navbar-left">
<li><a href="admin_panel.php" class="animated fadeInLeft" style="color:white;"><i class="fa fa-home fa-3x"></i></a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="logout.php" class="animated fadeInRight" style="color:white;"><i class="fa fa-user-times fa-3x"></i></a></li>
</ul>
</div>
</div><!-- End of container in nav -->
</nav> <!-- end of nav -->
<div class="content">
<div class="container">
<form name="regForm" class="form-horizontal" autocomplete="off" method="POST" enctype="multipart/form-data" onsubmit="return validate();" >
<h2 style="color:#00BFFF; font-weight: bold" class="text-center"> Employee Registration </h2><br>
<div class="form-group">
<label class="control-label sr-only" for="fname" > First Name </label>
<div class="col-md-12 col-sm-12">
<input style="font-weight: bold;" name="fname" id="fname" type="text" placeholder="Kindly Enter Employee First Name" class="form-control text-center"/>
</div>
</div><!-- End of first name -->
<div class="form-group">
<label class="control-label sr-only" for="lname" > Last Name </label>
<div class="col-md-12 col-sm-12">
<input style="font-weight: bold;" name="lname" id="lname" type="text" placeholder="Kindly Enter Employee Last Name" class="form-control text-center">
</div>
</div><!-- end of last name -->
<div class="form-group">
<label class="control-label sr-only" for="username" > E-mail | UserName </label>
<div class="col-md-12 col-sm-12">
<input style="font-weight: bold;" name="username" id="username" type="text" placeholder="Please Provide your Username as a E-mail " class="form-control text-center">
</div>
</div><!-- end of username | E-mail -->
<div class="form-group">
<label class="control-label sr-only" for="password" > password </label>
<div class="col-md-12 col-sm-12 ">
<input style="font-weight: bold;" name="password" id="password" type="password" placeholder="Kindly Enter Password" class="form-control text-center">
</div>
</div><!-- end of Password-->
<div class="form-group">
<label class="control-label sr-only" for="mobile_numebr" > Mobile_Number </label>
<div class="col-md-12 col-sm-12">
<input style="font-weight: bold;" name="mobile_number" id="mobile_number" type="text" placeholder="Kindly Enter Mobile Number " class="form-control text-center">
</div>
</div><!-- end of Mobile_Number-->
<div class="radio">
<label class="col-md-6 col-sm-6 " style="color:red; font-weight:bold;"><input type="radio" name="gender" id="male" value="male" checked="true"/>Male</label>
<label class="col-md-6 col-sm-6" style="color:red; font-weight:bold;"><input type="radio" name="gender" id="female" value="female"/>Fe-male</label>
</div><br><!-- end of gender -->
<div class="form-group">
<label class="control-label sr-only" for="address" > Address </label>
<div class=" col-md-12 col-sm-12">
<textarea style="font-weight: bold;"rows="4" cols="50" name="address" id="address" type="text" placeholder="Kindly Enter Employee Address " class="form-control text-center"></textarea>
</div>
</div><!-- end of address-->
<div class="radio">
<label class="col-md-6 col-sm-6 " style="color:red; font-weight:bold;"><input type="radio" name="emptype" id="emptype" value="employee"checked="true" />Employee</label>
<label class="col-md-6 col-sm-6" style="color:red; font-weight:bold;"><input type="radio" name="emptype" id="emptype" value="trainee" />Trainee</label>
</div><br><!--end of type of employee -->
<div class="form-group">
<label class="col-md-12 col-sm-12"> <input style="font-weight: bold;" type="text" id="birth" name="birth" class="form-control text-center" placeholder="Enter Birth-date of Employee">
</label>
</div> <!-- end of Birth datepicekr -->
<div class="form-group">
<label class="control-label sr-only" for="salary" > Basic Salary </label>
<div class="col-md-12 col-sm-12">
<input style="font-weight: bold;" name="salary" id="salary" type="text" placeholder="Kindly Enter Employee Basic Salary" class="form-control text-center">
</div>
</div><!-- end of Basic Salary -->
<div class="form-group">
<label class="col-md-12 col-sm-12"><input style="font-weight: bold;" type="text" id="joining" name="joining" class="form-control text-center" placeholder="Enter Joining Date of Employee">
</label>
</div> <!-- end of joining datepicekr -->
<div class="form-group">
<label for="state" class="sr-only control-label">Select State:</label>
<select style="font-weight: bold;" class="col-md-12 col-sm-12 form-control " id="state" name="state" onchange="display(this.id,'city')">
<option value="" selected="selected">-- Select state --</option>
<option>Maharashtra</option>
<option>Gujrat</option>
<option>Madhya Pradesh</option>
<option>Delhi</option>
<option>Punjab</option>
<option>Andhra pradesh</option>
<option>karnataka</option>
</select>
</div><!-- end of state selctor -->
<div class="form-group">
<label class="sr-only control-label">-- Select City --</label>
<select style="font-weight:bold;" class="col-md-12 col-sm-12 form-control " id="city" name="city"></select>
</div><!-- end of city selector -->
<div class="form-group">
<label for="designation" class="sr-only control-label">Select Designation Of Employee : </label>
<select style="font-weight: bold;" class="col-md-12 col-sm-12 form-control" id="designation" name="designation">
<option value="designation" selected="selected">-- Select Designation Of Employee --</option>
<option>HR</option>
<option>PHP developer</option>
<option>Tester</option>
<option>Marketing</option>
<option>Trainer</option>
<option>Project Manager</option>
<option>Team lead</option>
<option>JAVA Developer</option>
<option>.NET Developer</option>
<option>Android Developers</option>
<option>Graphics Designer</option>
</select>
</div><!-- end of Designation of employee selctor -->
<div class="form-group">
<label for="experiance" class="sr-only control-label">Select Experiance Of Employee : </label>
<select style="font-weight: bold;" class="col-md-12 col-sm-12 form-control" id="experaince" name="experiance">
<option value="" selected="selected">-- Select Experiance Of Employee --</option>
<option> Fresher </option>
<option> 1-2 Years </option>
<option> 2-3 years </option>
<option> 3-4 Years </option>
<option> 4-5 Years </option>
<option> 5-10 Years </option>
<option> 10-20 Years </option>
</select>
</div><!-- end of Employee Experiance selctor -->
<div class="form-group">
<label class="sr-only control-label"> Submit Button </label>
<input type="submit" name="submit" value="submit" class="btn btn-danger btn-width form-control"/>
</div><!-- end of submit -->
</form><!-- end of form -->
</div><!-- end of container -->
</div><!-- end of Menu content -->
</div> <!-- End of wrap -->
</body> <!-- end of body -->
</html>
<!-- inserting data into database -->
这是我要插入php数据库代码
<?php
$dbc=mysqli_connect('localhost','admin','thepassword1','office') OR die('something wrong with your Database'.mysqli_connect_error());
//connection is created
if (isset($_POST['submit']))
{
$fname=$_POST['fname'];
$lname=$_POST['lname'];
$mail=$_POST['username'];
$password=SHA1($_POST['password']);
$salary=$_POST['mobile_number'];
$gender=$_POST['gender'];
$address=$_POST['address'];
$type=$_POST['emptype'];
$birth_date=$_POST['birth'];
$salary=$_POST['salary'];
$joining_date=$_POST['joining'];
$state=$_POST['state'];
$city=$_POST['city'];
$designation=$_POST['designation'];
$experiance=$_POST['experiance'];
$qry="INSERT INTO emp(emp_fname, emp_lname,emp_mail,emp_password,emp_number,emp_gender,emp_address,emp_type,emp_birth_date,emp_salary,emp_joining_date,emp_state,emp_city,emp_designation,emp_experiance) VALUES ('$fname','$lname','$mail','$password','$salary','$gender','$address','$type','$birth_date','$salary','$joining_date','$state','$city','$designation','$experiance')";
//ending of query insert
header("Location:admin_panel.php");
if(mysqli_query($dbc, $qry))
{
echo"<script>alert('New Record Added succesfully')</script>";
}
else {
echo "<script> alert('Error occur')</script>".mysqli_error($dbc);
}
}
// end of decalartion of variable
mysqli_close($dbc);
//sql connection is close
?>
我建议你使用 html
而不是 php header((将用户标题到新页面：
在 php 脚本末尾添加
header("location: newpage.php");
exit;
通过这样做，刷新的用户将刷新newpage.php这意味着它不会执行两次插入。
最好的建议：先检查用户是否存在，如果不要插入！
重定向
代码应该在成功插入后。请尝试以下操作：
if(mysqli_query($dbc, $qry))
{
echo"<script>alert('New Record Added successfully')</script>";
header("Location:admin_panel.php");
exit;
}