用于确定$_SESSION数据的if语句
用于确定$_SESSION数据的if语句
提问于 2019-03-07 14:19:01
我已经创建了一个客户数据库，其中4-5名工作人员将有权登录查看，编辑和删除记录。
我需要的html表，其中列出了客户记录，以显示一个‘编辑’和‘删除’链接，只有在登录的userID ($_SESSIONuserID)匹配谁创建了记录的userID。因此，如果一名工作人员创建了5条记录中的3条，他们应该只能在这三条记录上看到“编辑”和“删除”超链接，而在其他两条记录上什么也看不到。
我已经设法达到了会话工作的目的--然而，作为PHP的新手，我不确定应该把IF语句放在哪里来回应'Edit‘和'Delete’链接--并且完全不知道如何准确地编写它。我已经试过很多次了，但我现在累死了！任何帮助都将不胜感激。
这是我的会话启动文件(authenticate.php)：
<?php
session_start();
$_SESSION["staffID"] = "staffID";
?>人员登录文件(staff_login.php)：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Staff login</title>
</head>
<body>
<?php
require("db.php");
session_start();
// If form submitted, insert values into the database.
if (isset($_POST['username'])){
// removes backslashes
$username = stripslashes($_REQUEST['username']);
//escapes special characters in a string
$username = mysqli_real_escape_string($con,$username);
$password = stripslashes($_REQUEST['password']);
$password = mysqli_real_escape_string($con,$password);
//Checking if user existing in the database or not
$query = "SELECT * FROM `staff login` WHERE username='$username'
and password='$password'";
$result = mysqli_query($con,$query) or die(mysql_error());
$rows = mysqli_num_rows($result);
if($rows==1){
$_SESSION['username'] = $username;
$_SESSION[staffID] = $rows["$staffID"];
// Redirect user to edit_contact.php - was index.php -
header("Location: edit_contact.php");
}
else
{
echo "<div class='form'>
<h3>Username/password is incorrect.</h3>
<br/>Click here to <a href='staff_login.php'>Login</a></div>";
}
}else{
?>
<div class="form">
<h1>Staff login</h1>
<form action="" method="post" name="login">
<input type="text" name="username" placeholder="Username" required />
<input type="password" name="password" placeholder="Password" required />
<input name="submit" type="submit" value="Login" />
</form>
</div>
<?php } ?>
</body>
</html>和php文件，在带有“Edit”和“Delete”超链接的表中显示记录：
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Edit contact</title>
</head>
<body>
<h2>Tate Finance Customer contact details</h2>
<?php
//***edit_contact.php***///
// Developed by: []
// Contact: []
// Created: [November 2018]
// Last Modified: [26 November 2018]
/* Purpose: This file lists all contacts from the mycontacts database in a table for logged in users to add, edit or delete their contacts.*/
//include authenticate.php file on all secure pages
require('db.php');
include("authenticate.php");
?>
<!--Add welcome note to staff user-->
<p>Welcome <?php echo $_SESSION['username']; ?>!</p>
<p><a href="logout.php">Logout</a></p>
<h3><a href="insert.php">Add new customer</a></h3>
<?php
$con = mysqli_connect("localhost","root","xxxxxx","mycontacts");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
else
{
// Show all contacts from database in a table list
$query = "SELECT * FROM contact ORDER BY conName ASC";
$rst = mysqli_query($con,$query);
if($rst)
{
if(mysqli_num_rows($rst)>0)
{
// Table design for contacts list
echo "<table border='1'><tr><td>Edit contact</td><td>Name</td><td>Address</td><td>Phone</td><td>Mobile</td><td>Email</td></tr>";
while ($row = mysqli_fetch_assoc($rst))
{
/* Present contacts details in table list according to id selected, with links to edit or delete according to contactID selected */
/* This is where I think my IF statement needs to go, but can't figure out how/what to write to make it work */
echo "<tr><td><a href=editContact.php?id=".$row['contactID'].">Edit</a><a href=delete_record.php?id=".$row['contactID']."> Delete</a></td><td>".$row['conName']."</td><td>".$row['conAddress']."</td><td>".$row['conPhone']."</td><td>".$row['conMobile']."</td><td>".$row['conEmail']."</td></tr>";
}
echo "</table>";
}
}
else
{
echo "No results found";
}
}
?>
</body>
</html>回答 2
Stack Overflow用户
发布于 2019-03-07 17:10:48
while ($row = mysqli_fetch_assoc($rst))
{
echo "<tr>";
if($_SESSION["staffID"] == $id_of_creator){
echo "<td>".
"<a href=editContact.php?id=".$row['contactID'].">Edit</a>".
"<a href=delete_record.php?
id=".$row['contactID']."> Delete</a> ".
"</td>";
}else echo "<td></td>";
echo "<td>".$row['conName']."</td><td>".$row['conAddress']."</td><td>".$row['conPhone']."</td><td>".$row['conMobile']."</td><td>".$row['conEmail']."</td></tr>";
}Stack Overflow用户
发布于 2019-03-07 17:46:46
<?php
while($row = mysqli_fetch_assoc($selectAllCustomer)){
$id = $row['customer_id'];
$name= $row['customer_id'];
$email= $row['customer_email'];
echo "<tr>";
if($_SESSION['staffID'] == $Admin_Id){
echo "<td>".$name."</td>";
echo "<td>".$email."</td>";
echo "<td>";
echo "<a href='editPage.php?edit='".$id."'>Edit</a>";
echo "</td><td>";
echo "<a href='deletePage.php?delete='".$id."'>Delete</a>";
echo "</td>";
}else{
echo "<td>".$name."</td>";
echo "<td>".$email."</td>";
}
echo "</tr>";
}
NB: the valiable $admin_Id, is a id of the creator
?>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/55037233
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