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PHP - Can I Have 'ref123', 'ref456' As References In Sessions ?
I can not seem to get this to work so wondered if I can do this or not.
Code: [Select] $_SESSION['ref123'] = "my item"; for some reason it is not storing when i try this, how do I allow letters ? Similar TutorialsActually i have a very large object thats persistent using sessions. That object have two large arrays, and other things. I have to extract each time that arrays. Now im using: $configuracion = $_SESSION['reg']->GetInvConfig(); $categorias = $_SESSION['reg']->GetInvCategorias(); But if i get it well, this is copying all the array each time, no? i can use a reference to that array in the object easily to improve performace? Hi there just wanted to ask you a general question regarding referenced variables and functions in PHP. I have this code: function theRefFunction(&$var){ $var = $var +1; return $var; } $a = 50; echo $thisvalue = theRefFunction($a); Just for learning purposes, as allot of times beginning PHP seriously developers who want to improve on memory consumption in PHP find this tricky, is there any point in using an example like this? I.e. would I really need the &$var as the parameter for the function called 'theRefFunction()'? Just wondered thats all, if not what would be a better way for really using it? It's just so I can go onto maybe doing a loop in it and setting it as a real example like working out tax and stuff like that, just for learning purposes, won't yet be using it. Just wanted to build up as I said earlier a library of things I have done and make maybe my own tutorial site. I look forward to any replies, Jeremy. I have been searching for a few weeks now and decided to get a little help on this on. I am after a database like that which I found for the UK postcode, but one for the USA but it needs to have the North and East references. Has anyone come across a site that offers a basic zipcode, state, Grid_N and Grid_E references ? if so please can you let me know what sites you have used. I got a log-in form with database, it only logs if such username and password exists. I was told that if i wanna make a log-out button once logged-in, i need to add sessions to my code and idk how.. this is my code that checks if username/password exists, and if so it lets u log in, if not it displays a msg: if(isset($_POST['loginsubmit'])){ if($username !="" && $password !="") { ///////////////////////////////Check for username/pass in database//////////////////////////// $nameexists = false; $passexists = false; $result = pg_query("SELECT name FROM duom WHERE name='".$username."'"); while ($row = pg_fetch_array($result)) { if($row['name'] != ""){ $nameexists = true; } } if($nameexists) { $result = pg_query("SELECT pass FROM duom WHERE name='".$username."'"); while ($row = pg_fetch_array($result)) { if($row['pass'] == $password){ $passexists = true; echo "Prisijungimas pavyko, jusu vartotojo vardas - ".$username.""; include"loggedinform.php"; } else { echo "Slaptazodis netinka!"; } /////////////////Starts session if password is correct//////////////////////////////////////////// if ($passexists){ //Here i want it to start the session if password is correct } ////////////////////////////////////////////////////////////////////////////////////////////////////////// } } else { echo "Tokio vartotojo nera!"; } ////////////////////////////////////////////////////////////////////////////////////////////////////////// } else { echo "Uzpildykite visus duomenys!"; } } Cant i just make smth like this? if ($passexists){ session_start(); } Hello, Is there a problem in destroying a session and then starting it in the same file, for example: session_name(); session_start(); session_destroy(); And lastly, if I create a variable $_SESSION['user'] under a session called 'one' i.e. session_name("one") and then create another variable $_SESSION['user'] under a session called 'two' i.e. session_name("two"). Are these two variables the same? I there. I am making a small game, either you or the computer win depending on who's life hit 0 first I am using sessions to hold the health values, however I need a little bit of help. How do I make it actually go down after each move until one hits 0? Here is my script and thanks in advance... 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" /> <title>Fighting Game</title> </head> <body> <form action="fighting_game.php" method="post"> <select name='move_choice' id='move_choice'> <option value='punch'>Punch</option> <option value='kick'>Kick</option> </select> <input type='submit' name='submitbtn' value='Continue' id='submitbtn'> </form> <div id='matchdiv'> <?php $_SESSION['ai_health'] = 100; $_SESSION['player_health'] = 100; $moves_ai = array("Computer punches you in the face!","Computer kicks you in the gut!"); $moves_player = array("You punch Computer in the face!","You kick computer in the gut!"); $move_damage = array(2,10); $move_dam_multiplier_player = array(rand(1,5),rand(5,10)); $move_dam_multiplier_ai = array(rand(1,5),rand(5,10)); if($_POST['submitbtn']){ $choice = $_POST['move_choice']; } if($choice == "punch"){ $total_dam_ai=($move_damage[0]*$move_dam_multiplier_ai[0]); $total_dam_player=($move_damage[0]*$move_dam_multiplier_player[0]); echo"$moves_player[1]"." Causing ".$total_dam_player." damage!<br>"; echo"Computers current health is ". ($_SESSION['ai_health']-$move_damage[0]*$move_dam_multiplier_player[0]); echo"<br>$moves_ai[1]"." Causing ".$total_dam_ai." damage!<br>"; echo"Your current health is ". ($_SESSION['player_health']-$move_damage[0]*$move_dam_multiplier_ai[0]); } elseif($choice == "kick"){ $total_dam_ai=($move_damage[1]*$move_dam_multiplier_ai[1]); $total_dam_player=($move_damage[1]*$move_dam_multiplier_player[1]); echo"$moves_player[1]"." Causing ".$total_dam_player." damage!<br>"; echo"Computers current health is ". ($_SESSION['ai_health']-$move_damage[1]*$move_dam_multiplier_player[1]); echo"<br>$moves_ai[1]"." Causing ".$total_dam_ai." damage!<br>"; echo"Your current health is ". $new_player_health=($_SESSION['player_health']-$move_damage[1]*$move_dam_multiplier_ai[1]); } if($_SESSION['ai_health']<=0 && $_SESSION['player_health']>=0){ echo"<br>Computer falls to the ground! He is knocked out! You win!"; } if($_SESSION['player_health']<=0 && $_SESSION['ai_health'] >= 0){ echo"<br>You fall to the ground! You are knocked out! You lose!"; } if($_SESSION['player_health']<=0 && $_SESSION['ai_health'] <=0){ echo"<br>You both fall to the ground! You are both knocked out! It's a draw!"; } ?> </div> </body> </html> Hi, I have an admin area to update users detials etc.. I want this area to be secure so only admins can access it, Currently anyone and everyone can access the page. Code: [Select] <?PHP session_start(); /* really need to use a session variable to insure authorized to be here */ include ('db.php'); /* ======================================== 99% of the time it is better to put your query in a string. It makes debugging much easier ======================================== */ $query = "SELECT * FROM companies"; $result = mysql_query($query ) or die("SELECT Error: ".mysql_error()); $num_rows = mysql_num_rows($result); /* ======================================== I find it easier to locate problems if I indent code properly and drop out of PHP if there are large sections of html ======================================== */ ?> <br><br><br>There are <?PHP echo $num_rows; ?> removalspace users so far.<P> <table width="819" height="114"> <tr> <th>Company Name</th> <th>Contact Name</th> <th>Contact Number</th> <th>Email</th> <th>Address Line 1</th> <th>Address Line 2</th> <th>Location</th> <th>Postcode</th> <th>Basic Members</th> <th>Upgraded Users</th> <th>Company Logo</th> <th>Approved</th> </tr> <tr> <td colspan="6"></td> </tr> <?PHP while ( $row = mysql_fetch_array($result, MYSQL_ASSOC )) { ?> <tr> <td><?PHP echo $row['company_name']; ?></td> <td><?PHP echo $row['contact_name']; ?></td> <td><?PHP echo $row['phone']; ?></td> <td><?PHP echo $row['email']; ?></td> <td><?PHP echo $row['street1']; ?></td> <td><?PHP echo $row['street2']; ?></td> <td><?PHP echo $row['location']; ?></td> <td><?PHP echo $row['postcode']; ?></td> <td><?PHP echo $row['basicpackage_description']; ?></td> <td><?PHP echo $row['premiumuser_description']; ?></td> <?PHP /* ======================================== I presume you want to show the thumb version here ======================================== */ ?> <td><img src="images/thumbs/<?PHP echo $row['upload']; ?>" alt="logo"/></td> </tr> <tr> <td colspan="10"> <table> <tr> <td>Current level = <?PHP echo $row['approved']; ?></td> <td><a href="admin02.php?id=<?PHP echo $row['id']; ?>&level=1">Level 1 - Free</a></td> <td><a href="admin02.php?id=<?PHP echo $row['id']; ?>&level=2">Level 2 - Basic</a></td> <td><a href="admin02.php?id=<?PHP echo $row['id']; ?>&level=3">Level 3 - Premium</a></td> <td><a href="admin02.php?id=<?PHP echo $row['id']; ?>&level=0">Level 0 - Do Not Display</a></td> </tr> </table> </tr> <?PHP } echo "</table>"; ?></table> i know it's something like: <?php session_start(); if(isset($_SESSION " but dont know how to finish it correctly? " ?> I have a simple php script that starts sessions. On every page, I include : if(isset($_SESSION['sessionname'])){ //The rest of the page } else { die("Not logged in"); } I always include the session start and always regenerate the session id after <?php. The code works fine withevery browser except for a certain version of Internet Explorer 8. Even though the browser does enable cookies, it doesn`t seem to allow the ones in my script. In fact, every time I change page, it ives the error message "Not logged in". I have tried it on two different compters with the exact same version of IE and the result was the same. Thank you for your time! Hey Guys, Me again! Still working on this bloody database! Okay, so I have a site that people can add a record to a database. This record is filled using a form and the form contains an image that can be uploaded. This works fine. Then there's the ability to search a record based on a boolean search which displays a table with the record data and displays a thumbnail of the photo. This also works fine. Then I have a script that (once it's working) will allow you to edit the record. This is where I'm having issues. Here's my process for the form: User searches for the record by using a boolean search Search finds the record and displays a form containing the original values in the database User changes some parts of the original record using the form Form then updates the database with the new values The problem I'm having is with the photo function. If there's no photo attached, I was getting an error saying that the photo field could not be empty. So I used the following process: User searches for the record using edit.php Form is displayed using edit_process.php edit_process.php is posted to update.php that has conditions to check if the file upload field is empty or not If the field is empty, then it requires updatenophoto.php If the field has a new image, it uses updatephoto.php When I submit the form to the update.php script, it does nothing and gives me a blank page. Here's my code for each of the parts (hit the character limit, code in comments): I have an "Email a Friend" form that captures the referring url and saves it in a session. The problem is that if someone decides not to send the form and navigates away from the page, and then decides to email another page, it saves the previous url. How can I have it so that it clears the previous url and uses the new one? Code: [Select] if(!isset($_SESSION['referrer'])){ //get the referrer if ($_SERVER['HTTP_REFERER']){ $referrer = $_SERVER['HTTP_REFERER']; } else{ $referrer = "http://www.mcse-training-classes.com"; } //save it in a session $_SESSION['referrer'] = $referrer; } So I'm trying to understand Sessions and how to store a variable within a session. What I want to t do, is start a session, check if variable is set, if not, set the variable. So with the code below, I start the session, i check the variable, if not set, i set it. But when i refrsh the page, it has the same session id but it didn't store the session variable from the previous load. Please, what am I missing? Code: [Select] <?php session_start(); echo "Session ID: ".session_id()."<br>"; echo "<br>chktrack P ".$_session['chktrack'].""; if ($_session['chktrack'] != 1){ $_session['chktrack']=1; } echo "<br>chktrack Post: ".$_session['chktrack'].""; echo "<br><a href='index.php'>Index</a>"; ?> Thanks in advance for your help. I am trying to create a blog and visitor log, where I should be able to log in as admin and add the item and see the visitor log. I want a password protected administration section and I want to use sessions on the administration section. When I for example click on add post, I want it to log in and go to page addpost.php where I can enter my text. This is what I've done so far. I would like to know what I have done wrong and how I should do to accomplish what I have mentioned above. <?php session_start(); if(isset($_POST['btnLogin']) || isset($_POST['addpost'])){ $txtUserId = $_REQUEST['txtUserId']; $txtPassword = $_REQUEST['txtPassword']; if (isset($_POST['txtUserId']) && isset($_POST['txtPassword'])) { if ($_POST['txtUserId'] === 'admin' && $_POST['txtPassword'] === 'abc123') { //$_SESSION['basic_is_logged_in'] = true; echo "you are logged in"; } elseif (empty($txtUserId) || empty($txtPassword)) { echo "fill in username and password"; } elseif ($_POST['txtUserId'] != 'admin'){ echo "wrong username"; } elseif ($_POST['txtPassword'] != 'abc123'){ echo "wrong password"; } } } ?> <?php //if (!isset($_SESSION['basic_is_logged_in']) // || $_SESSION['basic_is_logged_in'] !== true) ?> <html> <head> <title>Main User Page</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </head> <body> <form method="post" name="frmLogin" id="frmLogin" action="main.php"> <table width="400" border="1" align="center" cellpadding="2" cellspacing="2"> <tr> <td width="150">User Id</td> <td><input name="txtUserId" type="text" id="txtUserId"></td> </tr> <tr> <td width="150">Password</td> <td><input name="txtPassword" type="password" id="txtPassword"></td> </tr> <tr> <td><input type="submit" name="btnLogin" value="Login"></td> </tr> <tr> <td><input type="submit" name="addpost" value="add post" /></td> </tr> <tr> <td><input type="submit" name="showstat" value="Show visitors log" /></td> </tr> <tr> <td><input type="submit" name="blogg" value="To blog (logout)" /></td> </tr> </table> </form> </body> </html> Hi Something strange is happening and I can't understand it. A user can access an availability page of accommodation and book ita room, this works fine, and goes from availability to the booking form and back quite well, carrying the room id of the accommdation and room/s selected in a session. If they close the browser down and open the availability page again all the rooms are there as before, but when they select a room and go to the booking form the session of the room id and the rooms selected are empty. If I do a session destroy and open the browser up again everything works fine again. I have tried this in Chrome and Firefox and it seems to work fine Any help would be appreciated Im makigna simple login system for a sight but i only want them to have to login if they want to go to the shopping cart i have t implement a session_start() on every page before the cart page so the home page products page etc etc and then on the cart page ive a simple function that checks if their logged in if not then it will direct them to the login page if they are they should just continue is this the correct way to do it ? thanx session_save_path("/home/content/q/1/w/q1w2e3r4t5y6u7/html/tmp/"); session_start(); I have this at the head of my index page. I'd like to count how many files are in temp to find out how many users are online. After going to my index page, i checked how many users were online via the script I wrote and it said 1. I refreshed the page and it said 2. It went as high as 10 with each refresh and then I stopped because something isn't right. I checked my temp folder and there are 10 temp files. How can one page visitor start so many unique sessions? Is there a way to prevent this? I'm using the session start command with dual purpose. One, if a user loads the page. Secondly, to check if $_SESSION['active'] exists so I know this is a registered user. How can i limit the amount of sessions started by an unknown user and efficiently count how many files are in the temp directory? Hi, I have been looking at this code for hours and I can't figure out why the product name and quantity aren't transferring from treats.php to checkOut.php. I realize checkOut.php is extremely long but if I could get some help I would really appreciate it. In case you would want the link, it 's http://auntievics.com/treats.php hey on my page a list of people get listed by a category u choose if u choose a category and click ok, u are sent to the same page, and i get the category with POST if(isset ($_POST['type'])) { $gameholder = $_POST['game']; $typeholder = $_POST['type']; } this works ... the list of people is 30 members / page when u click on page 2, the post doesnt work anymore, and i get errors, logic ... now i want to get around this with making a session emediatly when the vars get out of POST if(isset ($_POST['type'])) { $gameholder = $_POST['game']; $typeholder = $_POST['type']; $_session['gameholder'] = $gameholder; $_session['typeholder'] = $typeholder; print $_session['gameholder']; } this also works now i want when people click on page 2, the needed vars will come out of the Sessions, and not out of POST so i did this if(!isset ($_POST['type'])) { $gameholder = $_session['gameholder']; $typeholder = $_session['typeholder']; } but this is not working theres nothing in $gameholder also when i move the print session out of the if, it should show when someone clicks page 2 but its not ... any suggestions on this? thanks! i have two files in php both have the same code and the file is Code: [Select] <?php session_start(); $con = mysql_connect("l","root",""); // here localhost and password will be filled accordingly if (!$con) { die('Connection failu ' . mysql_error()); } mysql_select_db("student",$con); $fetch=mysql_query("SELECT * from student1") or die(mysql_error()); $row = mysql_fetch_array($fetch) or die(mysql_error()); sleep(10); echo "Name: ".$row[0]."</br>"; echo " Age: ".$row[1]."</br>"; echo " Address: ".$row[2]; mysql_close($con); ?> Now i have another file which has the same code as above except there is no sleep function used in it . Now when i run the file which is wothout sleep it displyas results in seconds however the file with sleep function takes it time. Now the problem is if i load the file woth sleep function first then its delayed nature is reflected in another file which is without sleep() i.e now the file without sleep is taking longer time to open. please explain all this and possible solution to this problem the other file is Code: [Select] <?php session_start(); $con = mysql_connect("localhost","root","instablogs"); if (!$con) { die('Connection failu ' . mysql_error()); } mysql_select_db("student",$con); $fetch=mysql_query("SELECT * from student1") or die(mysql_error()); $row = mysql_fetch_array($fetch) or die(mysql_error()); echo "Name: ".$row[0]."</br>"; echo " Age: ".$row[1]."</br>"; echo " Address: ".$row[2]."</br>"; mysql_close($con); ?> How do you set a time limit on a session? |
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