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PHP - How To Know If Session Is Started Already In Page Or Not ...?
hey guys
i'am newb in php and i'am doing some algorithm in php, in some codes i need to use session but in that particular page the code does not know if session_start() has been called or not. wonder to if there is anyway that i can get if session is started or not in my code? thanks in advance Similar TutorialsHey Guys, Im having a really frustrating problem with this set of PHP: writeConversationFunctions.php <?php session_start(); the function writeMessage($message){ $_SESSION['messagetest'] = $message; $chatLogFile = "log.txt"; $openChatLog = fopen($chatLogFile, 'w') or die("Failed to open Log File."); if($message == "resetnow"){ $message = ""; fwrite($openChatLog, $message); fclose($openChatLog); $_SESSION['lastMessageSize'] = 0; } elseif($message == ""){ } else{ $timestamp = date("h:i"); if(isset($_SESSION['username'])){ $username = $_SESSION['username']; } else{ $username = "Anonymous"; } if($message[0] == "/"){ $commandString = stripslashes($commandString); $commandString = htmlentities($commandString, ENT_QUOTES, 'UTF-8'); $commandString = substr($commandString, 1); $command = explode(" ",$commandString); switch ($command[0]){ case "slap": $name = command[1]; $commandResponse = '<p class="commandText">' ."You slap " . $name . "across the face.</p>"; fwrite($openChatLog, $commandResponse); fclose($openChatLog); break; } } else{ $message = stripslashes($message); $message = htmlentities($message, ENT_QUOTES, 'UTF-8'); $message = preg_replace('@(https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)@', '<a href="$1" target="_blank">$1</a>', $message); $messageString = ' <p class="message"> <span class="timestamp">' .$timestamp . '</span> <span class="username">' . $username . ': </span>' . $message . '</p>'; fwrite($openChatLog, $messageString); fclose($openChatLog); } } } writeMessage($_POST['message']); ?> Simply, the session at the top will not be created for some reason. The post data is sent from: index.php Code: [Select] <?php session_start(); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <title>Chatulo.us</title> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.js"></script> <script> var n = 0; $(document).ready(function () { var focused = true; $(window).focus(function () { focused = true; f(); }); $(window).blur(function () { focused = false; f(); }); var title = document.title; var f = function () { if (focused) { n = 0; document.title = "Chatulo.us / Home"; } else { // none of that else if needed here, you're only checking is focused or not. if (n == 0) { // now you're checking if its zero, so ... document.title = "Chatulo.us / Home"; } else { // you need ELSE here, otherweise you'll always use this next clause document.title = "(" + n + ") " + "Chatulo.us / Home"; } } }; function playSound(soundfile) { document.getElementById("dummy").innerHTML = "<embed src=\"" + soundfile + "\" hidden=\"true\" autostart=\"true\" loop=\"false\" />"; } $.ajax({ type: "POST", url: "loginHandlers.php", data: { required_function: "checkSession" }, success: function (response) { $('#usernameBox').html(response); } }); $("form#sendMessageForm").submit(function () { var message = $('#messageInputField').attr('value'); $('#messageInputField').val(''); $.ajax({ type: "POST", url: "writeConversationFunctions.php", data: { message: message }, success: function () { update(); } }); return false; }); function update() { $.ajax({ type: "POST", dataType: "json", url: "readConversationFunctions.php", data: { required_function: "readConvo" }, success: function (message) { if (message.newmessage == true) { $('#messageBox').html(message.message); playSound('sounds/pop.mp3'); n = n + 1; f(); } else if (message.newmessage === false) { $('#messageBox').html(message.message); } }, complete: function () { setTimeout(update, 1000) $("#messageBox").attr({ scrollTop: $("#messageBox").attr("scrollHeight") }); } }); } $("form#getUsernameForm").live('submit', function () { var username = $('#usernameInputField').attr('value'); $.ajax({ type: "POST", url: "loginHandlers.php", data: { username: username, required_function: "usernameHandler" }, success: function (response) { $('#usernameBox').html("Processing..."); setTimeout(function () { $('#usernameBox').html(response) }, 1000); } }); return false; }); $("span#logoutText").live('click', function () { $.ajax({ type: "POST", url: "loginHandlers.php", data: { required_function: "removeSession" }, success: function (response) { $('#usernameBox').html("Processing..."); setTimeout(function () { $('#usernameBox').html(response) }, 1000); } }); return false; }); update(); }); </script> </head> <body> <form method="post" name="messageInput" id="sendMessageForm"> <input name="message" id="messageInputField" type="text" autocomplete="off"/> <input name="submit" type="submit" value="Send"/> </form> <div id="messageBox"> </div> <div id="usernameBox"> </div> <span id="dummy"></span> <img src="images/logo.png" width="175" height="50" alt="Logo" id="chatulouslogo"/> </body> </html> Any help with this issue would be GREATLY appreciated! Regards, Cody Some code from my pages ,
Page1 ( Redirecting page )
<html> <title>login_redirect.</title> body> <form name="redirect" action="http://mysite/page2.php" method="post"> <input type="hidden" name="mac" value="$(mac)"> </form> <script language="JavaScript"> <!-- document.redirect.submit(); //--> </script> </body> </html>Page 2 ( select product )
<?php
session_start();
ini_set('display_errors',1);
error_reporting(E_ALL);
include '../lib/config.php';
include '../lib/opendb.php';
// get user mac adres from redirect post page1
$_SESSION['macid'] = $_POST['mac'];
// set $macid for other use ( maybe not needed, am learning )
$macid = $_SESSION['macid'];
// echo $macid does show mac adress, so variable is not empty here
if (!empty($_POST["submit"]))
{
$product_choice = $_POST['accounttype'];
$query= "SELECT AccountIndex, AccountCost, AccountName FROM AccountTypes WHERE AccountIndex='$product_choice'";
$result = mysql_query($query) or die('Query failed. ' . mysql_error());
while($row = mysql_fetch_array($result))
{
$_SESSION['AccountIndex'] = $row['AccountIndex'];
$_SESSION['AccountCost'] = $row['AccountCost'];
$_SESSION['AccountName'] = $row['AccountName'];
}
header('Location: page3.php');
}
// did leave out the other/html/form stuff here
Page 3 ( show Session variables )
<?php
ini_set('display_errors',1);
error_reporting(E_ALL);
session_start();
print_r($_SESSION);
?>
Now, on page 3 i do see the right session varables, only the "macid" is empty.
why ?
ONE of my SESSION values isn't remaining after login while others do. This works fine on my localhost, it's on the live site that there is a problem and it just started yesterday. Before that it worked great. Out of the four SESSIONs made I can only echo three values on other pages, member id the most important doesn't transfered to other pages Notes: all these files are in the same folder, there is a SESSION started for the member id on the login page, you can see that it is used in the redirect below and the redirect works fine with the redirect going to the correct page " $home/member/index.php?user=$id_mem " Here is the login page // Here's the basic login page info <?php # login.php session_start(); ob_start() ...connect to db & header called... ...Form validation..... if ($e && $p) { // If everything's OK. // Query the database: $q = "SELECT id_mem, display_name, mem_group FROM sn_members WHERE (email='$e' AND password=SHA1('$p')) AND active IS NULL"; $r = mysqli_query ($dbc, $q) or trigger_error("Query: $q\n<br />MySQL Error: " . mysqli_error($dbc)); // or die("Error: ".mysqli_error($dbc)); if (@mysqli_num_rows($r) == 1) { // If a match was made. // Register the values & redirect: // Give SELECTED elements a session $_SESSION = mysqli_fetch_array ($r, MYSQLI_ASSOC); $_SESSION['agent'] = md5($_SERVER['HTTP_USER_AGENT']); mysqli_free_result($r); // Update db for last login $id_mem = $_SESSION['id_mem']; // <<< SESSION member id has a value here because it's used in the redirect below $ip = $_SERVER['REMOTE_ADDR']; // Get ip address of person logging in $q = "UPDATE sn_members SET last_login = Now(), ip = '$ip' WHERE id_mem = '$id_mem' LIMIT 1"; $r = mysqli_query ($dbc, $q) or trigger_error("Query: $q\n<br />MySQL Error: " . mysqli_error($dbc)); header("Location: $home/member/index.php?user=$id_mem"); exit(); // Quit the script. } ?> Here is the main page that a user would be redirect to above <?php // /member/ all member info is through this folder session_start(); ob_start(); if (isset($_GET['user']) && is_numeric($_GET['user'])) { $user = $_GET['user']; $user = $user; if ($user < 0) { header("Location: $home/index.php"); exit(); } } if ((!isset($_SESSION['id_mem'])) && (!isset($_SESSION['agent']) OR ($_SESSION['agent'] != md5($_SERVER['HTTP_USER_AGENT'])))){ // If not a logged in member redirect header("Location: $home/index.php"); exit(); // Quit the script. } ?> Thanks in advance for the help SJ I'm going to go for broke here as this is the last thing I can think of that is going to help me learn anything... First things first. I have been reading tutorials and guides and all other things about PHP and playing around with all the codes from these tutorials and guides on my localhost. All work well. Yet, they haven't really taught me a great deal since all the code is already written and it's extremely hard to customize with the limited knowledge I currently have. I do not learn very well from sitting down and reading something that someone else has already written and then trying to work out what all the parts are. When I look at some code - I can usually figure out what is happening and what the code is doing. But it doesn't really help me understand how to write the code myself... So I thought if I made a topic where I get people to help ME write out a complete code.. I would actually learn something as I go along.. asking questions where I need to and building it exactly the way I want it. Note the 'ME' is capitalized. I don't expect everyone else to write it all down for me. I want to write it - have you guys give it the ok and we'll move on to the next bit. I know there will be parts where I am completely lost and I will need people to write down something to keep the whole thing moving. I would then ask questions untill I understood what you have provided. The whole idea of this is to build a User Login/Management system. If anyone is up for supporting this idea and helping me start from scratch let me know. Otherwise I'm not sure what else I'm going to have to do. Hello, I've just begun learning PHP and I've gotten a bit into it, but I'm nowhere near a pro. Now, I've decided to start a project that will, in my opinion, help me learn a lot. I'm just having a bit of trouble understanding exactly how to do a few things. My goal is to take the PHP forum base found here and turn it into something similar to this. I've made changes of my own to this forum base and have already finished the news posting section of it on the front page. (almost, one issue with that, more on that in a sec). I've also removed this portion: if(!$action || !in_array($action,$actions_array)){ $sql1 = "SELECT * FROM `forum_cats` WHERE `admin` < ".$row['admin']."+1"; $res1 = mysql_query($sql1) or die(mysql_error()); $i=1; while($row2 = mysql_fetch_assoc($res1)){ echo "<div id=\"fcontent\">\n"; echo " <div class=\"header\" id=\"header_".$i."\" onMouseOver=\"this.className='headerb'\" onMouseOut=\"this.className='header'\">".$row2['name']."</div>\n"; $sql2 = "SELECT * FROM `forum_sub_cats` WHERE `cid`='".$row2['id']."' AND `admin` < ".$row['admin']."+1"; $res2 = mysql_query($sql2) or die(mysql_error()); while($row3 = mysql_fetch_assoc($res2)){ echo " <div id=\"content\">\n"; echo " <a href=\"./index.php?act=forum&id=".$row3['id']."\">".$row3['name']."</a><br>\n"; echo " " . $row3['desc'] . "\n"; echo " </div>\n"; } echo "</div>\n"; $i++; } }else { from index.php so that instead of the links displayed as they would be on a forum, they can be displayed in a navbar off to the side as on the example site (this). That point leads me to my next point: the navigation bar. I'm looking to create the same sort of look (in terms of layout, not the whole.. dark design harry potter thing) as the example site, but I don't really understand how to make navbars on the sides of the whole.. news section. I just need a basic explanation of how these things can be done, but please do not give things away. After all, it is a learning experience. All help is appreciated, though! Also, let me know if you need any more information or if I was unclear. Thanks, Fae Hi guys, I am new to php and mySQL. I am trying to just learn how to input and output data to a mySQL database. What I want to do is have a single page with a text area and button where a user can enter some text and then press a submit button. When the button is pressed I want the text that the user typed to be entered in my database and then displayed below the text area. If you have any questions about what I am trying to do please ask. Thank you for your help in advance! I'm trying to learn how to create a simple API, possibly using REST. I found a lot of online tutorials on how to implement API's but how do I create my own for my own website? The API I want to make is just for querying simple data and inserting data in the DB. From what I learned, REST does HTTP requests from a XML or JSON file but is REST a script I have to download, I can't find a REST site. I'm confused.. Hi guys, Just starting to play with PHP Domdocument, only to fail at the very first step:
<?php
$html = 'test/php/somefile.html' ;
if(!empty($html)){
$dom_1 = new domDocument ;
$dom_1->loadHTML($html) ;
$links = $dom_1->getElementsByTagName('li') ;
foreach ( $links as $link) {
// echo $link ;
echo $link->nodeValue, PHP_EOL;
}
}
?>
When I visit it in a browser I get a WSOD, what am I missing? This topic has been moved to PHP Applications. http://www.phpfreaks.com/forums/index.php?topic=332465.0 Hi, I have a user/password protected page that displays a list of clients. When clicking on them you're redirected to the client record update page. This is how I am linking to taht page now: Code: [Select] <a href="DIST_clientes_update.php?id_cliente=<?php echo $row_clients_RS['id_cliente']; ?>The problem with this is that the client id is appended to the url and so if the user chnges it will be able to access records from a different user...and I dont want that. So I have created a session: Code: [Select] $_SESSION["idCliente"] = $row_clients_RS['id_cliente'];but how do I pass it to the update page without showing in the url? Thanks I'm building a login page that then redirects to a new page. But it seems the session isn't working. But I don't know much about sessions, so I'm not sure what I might be doing wrong. The login page sets the session with this code: Code: [Select] // Fetch the result - This will tell us whether this user exists $userExists = mysql_fetch_assoc($doQuery); // If user exists log them in if($userExists){ mysql_free_result($doQuery); mysql_close(); // Set the SESSION variables $_SESSION['first_name'] = $userExists['first_name']; $_SESSION['id'] = $userExists['id']; The page that it redirects to is this: Code: [Select] <?php session_start(); if(isset($_SESSION['id'])) { echo "<html><body><p> You are now logged in,{$_SESSION['ID']}.</p>"; } else { echo 'something went wrong'; exit(); } ob_end_flush(); ?> Hi. I have problem and I would like to know if anyone here has any ideas on how to fix it. My home page is where my log in form resides. If I leave the home page to browse other pages of my site I want to stay logged in. However, when I return to the home page I see the log in form. The log in form should not be there if I already logged in. Instead I should see the welcome message. Which does appear after loggin in but does not stay on the home page when I leave the page and come back. Code: [Select] <?php //Starts the PHP Sesssion session_start(); //Includes the MYSLQ Connection Info from another PHP Page include ('spartacus_mysql.php'); //Submits Log In Info to Database and encrypts Password if (isset ($_POST['loginsubmit'])) { $username = mysql_escape_string($_POST['username']); $userpassword = mysql_escape_string(md5($_POST['userpassword'])); if (!empty ($username) && !empty ($userpassword)) { //Runs Query to Selects the Username and Password from the Database $sql = mysql_query ("SELECT * FROM users WHERE username='".$username."' AND userpassword='".$userpassword."' LIMIT 1"); //Finds and Matches the Log In Info from the Database to the one submitted if(mysql_num_rows ($sql) > 0) { $_SESSION['loggedin'] = true; $_SESSION['username'] = $username; //Runs This Message if the right Username/Password is entered echo '<div id="welcome_member"> Welcome, '.$_SESSION['username'].'.<br /> You are now logged in!<br/> The Combat Tips and Downloads is now accessible!<br /> Enjoy!<br /> </div>'; } else { //Runs This Error if the Username/Password do not match the Database echo '<div id="welcome_member"> Your username and/or password is incorrect! <a href="spartacus_home.php">Try Again</a> </div>'; } } else { //Runs This Code if the Log In Form is Left Blank echo '<div id="welcome_member"> You must enter a username and a password! <a href="spartacus_home.php">Try Again</a> or <a href="spartacus_joinsite.php">Register</a> </div>'; } } else { //This is the code for the Log in Form echo'<div id="join"> <a href="spartacus_joinsite.php">{ JOIN! }</a><br /> </div> <div class="signin"> <div id="titles"> { SIGN IN } </div><br /> <form method="post" action="spartacus_home.php"> <table> <tr><td> Username: <input type="text" name="username" /> </td></tr> <tr><td> Password: <input type="password" name="userpassword"/> </td></tr> <tr><td> <input class="submit" name="loginsubmit" type="submit" /> </tr></td> </table> </form> </div>'; } ?> <!--end sign in PHP--> Here is my code I have my php pages set up like this: 1. log in with login.php 2. that sends you to main.php 3. in main.php, there are links to page-a.php, page-b.php, page-c.php, etc. when you type in a password at login.php, it passes your input to main.php. the correct password is hardcoded in main.php. if it matches, a session variable is set, which should be able to be used on page-a.php, page-b.php, page-c.php, etc. to verify that whoever accesses those pages has gone through the login process. if the session variable doesn't match (or null) the user is redirected to the login page. also the session variable is checked (recursively) when accessing main.php, just like the other pages. the problem is, it's as if each page starts over. the session variable does not make it beyond the page that sets it. it should be passed on to the next page but it's not. I used an echo statement in page-a.php to verify and rem'd out the rest of the code. no echo because session value is null, page goes on to load the html. without the code rem'd out it redirects the user to login.php. code: LOGIN.PHP <? session_start(); if(isset($_SESSION['aaa'])) unset($_SESSION['aaa']); ?> <html> <head> <title>title</title> </head> <body> <table width="400" align="center" border="0" bordercolor="#000099" bordercolordark="#000066" bordercolorlight="#6666FF"> <tr bgcolor="#B0C4DE"> <td> <form action="main.php" method="POST"> <p align="center"><strong><font size="2" face="Verdana, Arial, Helvetica, sans-serif" color="#FFFFFF"><br> Password</font></strong> <input name="pwfield" type="password" value size="20" maxlength=20> <input type="submit" value="Login"></p> </form> </td></tr></table> </body></html> MAIN.PHP <? if ($_SESSION['aaa']!="abcdef") { $password="twinkies"; if ($_POST["pwfield"]==$password) $_SESSION['aaa']="abcdef"; // successful login else {header("Location: login.php"); exit();} } ?> <html> <head> <title>title</title> </head> <body> <a href="page-a.php">Page A</a> <a href="page-b.php">Page B</a> <a href="page-c.php">Page C</a> </body></html> PAGE-A.PHP <? echo $_SESSION['aaa']; //if ($_SESSION['aaa']!="abcdef") //header("Location: login.php"); //exit(); ?> <html> <head> <title>title</title> </head> <body> ... I am finally getting my blog started. Actually having allot of fun with it to be honest, so far what I have been thinking about is actually working for a change lol. This is more in some ways to show you what I can do actually aswell, all of the below code is obviously in procedural, but would you change anything at all? I mean I know all of the below code is going to be a matter of preference, it works though so far, but I have been reading a few books and sort of memorised allot of it, all of the code below is my own perceptions of course, what do you think? Here's my logic (I have excluded my 'inc.database.php' file, as that's got my mysql database login details), here it is anyways: Code: [Select] <?php ini_set('display_errors', 1); // include the database connection! require_once 'inc.database.php'; function get_category($category_id) { $sql = 'SELECT category FROM blog_categories WHERE category_id = '.$category_id; $result = mysql_query($sql); $row = mysql_fetch_assoc($result); extract($row); return $category; } // function get_responses($category_id, $post_id){ function get_responses($post_id){ $post_id = mysql_real_escape_string($post_id); $sql = 'SELECT post_title, post_text, date FROM blog_posts WHERE isreply = 1 AND parent = '.$post_id; $result = mysql_query($sql); return mysql_num_rows($result); } require_once 'header.html'; // if user has not selected a category in the URL then display the category links! if(!isset($_GET['category'])) { printf("<p>Please select a blog category</p>\n"); $sql = 'SELECT category_id, category FROM blog_categories WHERE avail = \'Y\' ORDER BY category'; $result = mysql_query($sql); // weird but if there's an error show the user firstly! if(!$result) { printf("<p class=\"error\">Could not contact server, please try again later.</p>"); } else { if(mysql_num_rows($result) > 0) { // else loop and output the category as links, so get can be retrieved the find all the posts: while($row = mysql_fetch_assoc($result)) { extract($row); // turns headings of column names into variables, so dont have to use $row['colname'] in database, like so: printf("<p><a href=\"index.php?category=%d\">%s</a><br /></p>\n", $category_id, $category); } } else { printf("<p>No categories available</p>"); } } } else { // trim the category, so someone isnt being stupid and tries to create like a DOS with empty spaces in the category URL trim($_GET['category']); // removes any blank spaces // if category ident is not empty: if($_GET['category'] != ''){ // make input safe: $category_id = mysql_real_escape_string($_GET['category']); // now need to select from which category it is! $sql = "SELECT post_id, post_title, post_text, date, username, category FROM blog_posts LEFT JOIN blog_users ON blog_posts.user_id = blog_users.user_id INNER JOIN blog_categories ON blog_posts.category_id = blog_categories.category_id WHERE blog_posts.category_id = $category_id AND approved = 1 AND isreply != 1"; $result = mysql_query($sql); printf("\n<h2>%s</h2>\n", get_category($category_id)); // calls a function to get the category name! if(mysql_num_rows($result) > 0) { // display the rows of posts: while($row = mysql_fetch_assoc($result)) { extract($row); printf("<h3>%s</h3>\n %s<br />\n By %s %s \n<br />", $post_title, $post_text, $username, $date); // get the no of replies and maybe even at some point show the oldest replies first: // get_responses($category_id, $post_id); printf("No of comments %d</p>",get_responses($post_id)); } } else { printf("<p>No posts exist in this category</p>\n"); } } else { printf("<p class=\"error\">You did not select a blog category, please try again.</p>"); } } require_once 'footer.html'; ?> Of course with the init_set('display_errors', 1) is set to true just for debugging though, when I am happy with it going live I will make this 0, so no errors appear to the user, but what do you think? It is of course entirely reading from the database, no input on this page, as that will be on other scripts. Thanks and I look forward to any replies, Jez. Hi Everyone, I wonder if somebody could help me. I have been at this for hours and am really struggling. I have a timer which I have set up for a quiz. The quiz opens in a javascript shadow box. When the quiz is opened a session variable for the timer is set up to keep track of the time. What I need is for this session variable to end when the shadow box is closed. I have a onClose hook to peform actions when the shadow box is closed which is in javascript. Obviously I cannot end the session variable in the javascript function due to js being client side and php being server side. Has anyone any suggestions how I can resolve this issue. I need to end this session variable as if the user exits the quiz and then selects another quiz to do the timer uses the current time session rather than assigning the new time value for that particular quiz. Thanks in advance. Edd Hello, I've been hacking at this for about 5 hours, and have been unable to get my session data to pass through to the 3rd page. Here is my code. As you can see I've been trying all types of variation of retrieval. On page 2 I can pull the data from page 1 fine with REQUEST or the longer version.. But for some reason page 3 will not display the first_name and last_name... I'm desperate at this point. I have not been able to find a working answer. I'm running php 5 w/ trans... OFF (default) in .ini. Page 1 Code: [Select] <?php session_start(); ?> <?php $PHPSESSID = session_id(); echo "<strong>Session ID:</strong> $PHPSESSID"; "<br /><br />"; ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>0</title> </head> <body> <form method="post" action="multi_page_post_2.php"> <label>First Name</label> <input name="first_name" value="" width="50" type="text" /> <br /><br /> <label>Last Name</label> <input name="last_name" value="" width="50" type="text" /> <br /><br /> <input type="submit" name="submit" value="Enter your Data - Continue to Step 2 >>" /> </form> </body> </html> Page 2 Code: [Select] <?php session_start(); ?> <?php $PHPSESSID = session_id(); echo "<strong>Session ID:</strong> $PHPSESSID"; $first_name = $_REQUEST['first_name']; echo $first_name; ?> <?php echo "<br /><br />"; print_r($_SESSION); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Step 2</title> </head> <body> <h2>Step 2 - Is this data correct?</h2> <hr /> <strong>First Name:</strong> <?php echo $_SESSION['first_name'] = $_POST['first_name']; ?> <br /><br /> <strong>Last Name:</strong> <?php echo $_SESSION['last_name'] = $_POST['last_name']; ?> <br /><br /> <form method="post" action="multi_page_post_3.php"> <label>Sons First Name: </label> <input name="sons_first_name" value="" width="50" type="text" /> <br /><br /> <input type="submit" name="submit" value="YES! Continue to Step 3 >>" /> <input type="hidden" name="PHPSESSID" value="<?php echo $PHPSESSID ?>" /> <input type="button" value="No! Back to Previous Page" onClick="javascript: history.go(-1)"> </form> <br /><br /> <a href="" onclick="<?php session_destroy(); ?>">Session D E S T R O Y !</a> </body> </html> Page 3 Code: [Select] <?php session_start(); ?> <?php $PHPSESSID = session_id(); echo "<strong>Session ID:</strong> $PHPSESSID"; ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Step 3</title> </head> <body> <h2>Step 3 - Is this data correct?</h2> <hr /> <strong>First Name:</strong> <?php echo $_SESSION['first_name'] = $_REQUEST['first_name']; ?> <br /><br /> <strong>Last Name:</strong> <?php echo $_SESSION['last_name']; ?> <br /><br /> <strong>Sons First Name:</strong> <?php echo $_REQUEST['sons_first_name']; ?> <br /><br /> <form method="post" action="multi_page_post_4.php"> <input type="hidden" name="PHPSESSID" value="<?php echo $PHPSESSID ?>" /> </form> <br /><br /> <a href="" onclick="<?php session_destroy(); ?>">Session D E S T R O Y !</a> </body> </html> Well i have a session['rmanr'] a have set after a submit containing the date and unique id.
I have to be able to do multiple submits on that same form but if they submit multiple times the same rmanr have to be used...
I tried the following:
$date = date("Y-m-d");
$datestrip = str_replace("-", "", $date);
$lastdetid = $dbh->lastInsertId();
if(!isset($_SESSION['rmamr'])){
$rmanr = $datestrip;
$rmanr .= $lastdetid;
$_SESSION['rmanr'] = $rmanr;
} else {
$rmanr = $_SESSION['rmanr'];
}
$uprmastmt = $dbh->prepare("UPDATE rma SET r_nr = '$rmanr' WHERE r_id = ?");
$uprmastmt->bindParam(1, $lastid);
$uprmastmt->execute();
But i keep getting a new rmanr every time i submit... Could it be that my form submit reset my SESSION?
i'm creating a page counter which updates a value in a database each time the page is loaded. I'm trying to make it so that it checks to see if a session has been set, if not, it updates the database, and then sets the session. This way it wont update every time someone refreshes the page. $id=$_GET['id']; if(!isset($_SESSION[$id])){ $_SESSION[$id]= $id; $views = $row['views'] + 1; $update_views=mysql_query("UPDATE topic SET views='".$views."' WHERE topic_id='".$id."'") i want to set the session variable as that of the page id ($id) The problem is that it keeps updating the database everytime the page is reloaded. I'm not sure if i'm setting the session variable correctly. Any ideas would be great Thanks Hi everyone, as the title stated, I would like to know how I could submit a form in one page(cart) and unset a session variable on other page.
Right now my form is setting a variable within the page back to 0, however I would like the form to unset the session variable from other page as well.
The issue with my code is that every time I attempt to clear out all items, my code can empty out the cart. But whenever I close and reopen the cart, the same content will show up again. So I need to unset the session variable.
Please let me know what should I do in order to solve the problem and I greatly appreciate your help.
My code is currently looking like this:
cart.php
if(!empty($_GET['aID']))
{
$aID = $_GET['aID'];
echo $aID;
if(isset($_POST['removeAll']))
{
$aID = "0";
}
$cartSQL = "SELECT * from article where aID in ($aID)";
echo "cart sql :$cartSQL";
$cartQuery = mysqli_query($dbc, $cartSQL) or die (mysqli_error($dbc));
while($row = mysqli_fetch_array($cartQuery, MYSQLI_BOTH))
{
$aTitle[] = $row[ 'name' ];
}
}
<form action = "" method = "POST">
<td style = "width = 200px"><input type="submit" value="Empty cart" name="removeAll"></td>
</form>
And this is the session variable from other page where I would like it to be unset upon submitting the form.
if(!empty($cartSubmit))
$_SESSION["cartSubmit"] = $cartSubmit;
else
$cart = $_SESSION["cartSubmit"];
<a href="javascript:popup('cart.php?aID=<?php if(empty($cartSubmit)) echo "$cart"; else echo "$cartSubmit";?>')">Cart</a>
I'd describe myself as a "basic" php programmer....
I'm trying to build my first multi-page forms.
The first page is calculator_q1.php
No session variables are needed here, I have omitted a few options, the code looks like this
<form id="page1" method="post" action="calculator_q2.php"> <h1>1. Which best describes the primary and secondary sports combination that will be played on your pitch?</h1> <table> <tr><td>Rugby only</td><td><input type="radio" name="1_primary_secondary_combo" value="Rugby only"></td></tr> <tr><td>Rugby/Soccer</td><td><input type="radio" name="1_primary_secondary_combo" value="Rugby Soccer"></td></tr> <tr><td>Soccer/Hockey</td><td><input type="radio" name="1_primary_secondary_combo" value="Soccer Hockey"></td></tr> </table> <input class="blue" type="submit" value="Next"> </form>The 2nd page is calculator_q2.php. This has some php to start the session, copy the result of form 1 to a session var, I do a debug echo and the variable is printed correctly so I think have captured it correctly. In extract, I do this:
<?php
//Start the session
session_start();
//Store our posted values in the session variables
$_SESSION['1_primary_secondary_combo'] = $_POST['1_primary_secondary_combo'];
?>
<?php
$debug=True;
if ($debug) {
echo ("Debug: session for q1 = ".$_SESSION['1_primary_secondary_combo']);
}
?>
<form id="page2" method="post" action="calculator_q3.php">
<h1>2. Please choose a preferred surface</h1>
<table>
<tr><td>3G Rubber Crumb Filled Turf</td><td><input type="radio" name="2_preferred_surface" value="3G Rubber Crumb Filled Turf "></td></tr>
<tr><td>Sand Filled Turf</td><td><input type="radio" name="2_preferred_surface" value="Sand Filled Turf"></td></tr>
<tr><td>Sand Dressed Turf or<br>a Water Based Surface</td><td><input type="radio" name="2_preferred_surface" value="Sand Dressed Turf or a Water Based Surface"></td></tr>
</table>
<p>
<script>
function submitForm(action){
document.getElementById('page2').action = action;
document.getElementById('page2').submit();
}
</script>
<input class="blue" type="button" onclick="submitForm('/calculator_q1.php')" value="Previous" />
<input class="blue" type="button" onclick="submitForm('/calculator_q3.php')" value="Next" />
</form>
So far so good, but when I introduce page 3 (calculator_q3.php) then it prints the previous page's (from page 2) variable but can't find the session variable from question 1. This is from calculator_q3.php:
<?php
//Start the session
session_start();
//Store our posted values in the session variables
$_SESSION['2_preferred_surface'] = $_POST['2_preferred_surface'];
?>
<?php
$debug=True;
if ($debug) {
echo ("Debug: session for q1 = ".$_SESSION['1_primary_secondary_combo']);
echo ("<br>Debug: session for q2 = ".$_SESSION['2_preferred_surface']);
}
?>
<form id="page3" method="post" action="calculator_q4.php">
<h1>3. Please choose one watering option</h1>
<table>
<tr><td>With a Rain Gun System</td><td><input type="radio" name="3_watering_option" value="With a Rain Gun System"></td></tr>
<tr><td>With a Rain gun System + Water Borehole</td><td><input type="radio" name="3_watering_option" value="With a Rain gun System + Water Borehole"></td></tr>
<tr><td>Not Required</td><td><input type="radio" name="3_watering_option" value="Not Required"></td></tr>
</table>
<p>
<script>
function submitForm(action){
document.getElementById('page3').action = action;
document.getElementById('page3').submit();
}
</script>
<input class="blue" type="button" onclick="submitForm('/calculator_q2.php')" value="Previous" />
<input class="blue" type="button" onclick="submitForm('/calculator_q4.php')" value="Next" />
</form>
To see this in action see: http://www.sports.ha...lculator_q1.php
Any insights would be appreciated. Many thanks.
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