PHP - Strange Session Problem
Hi. I have to check if a session is started or not, and then, check for the rank of the user. For that i use two functions like is_administrator,etc.
Well, but this isnt working. I cant get any clear way to know if a session have been already started or not. Code: [Select] function is_administrator() { session_start(); if (isset($_SESSION['usr']) and empty($_SESSION['usr'])) { $l = conect(); $user = $_SESSION['usr']; $cons = "SELECT * FROM `users` WHERE usr='" . $user . '\';'; $res = mysql_query ($cons,$l); $ob = mysql_fetch_array($res); if ($ob['tipo'] == 'A') { return true; } } return false; } What i want to do is to check if a sesion exist, if not, return false. If the sesion exist, check for the user rank and return true/false. Similar TutorialsI have something strange going on with sessions set after a user logs in. After posting the form, the following code (only part of the log in script) correctly assigns the users ID to $_SESSION['id'] but after a while it starts showing up as the users level ($_SESSION['level']). I have rechecked all of my code to see if something mistakenly assigns the level to $_SESSION['id'] but everything seems fine. I am going to rewrite the log in script today, as I am sure that I can streamline it but wondered if anyone can give any advice on what it happening here to make sure I do not fall into the same trap! Thanks Steve $username = mysql_escape_string($_POST['Lname']); $password = mysql_escape_string(md5($_POST['Lpassword'])); $search = mysql_query("SELECT userid, username, password, active, level FROM users WHERE username like binary '".$username."' AND password='".$password."' AND active='1'") or die(mysql_error()); $match = mysql_num_rows($search); $level = mysql_fetch_assoc($search); if($match > 0) //The username and password is correct {//START MANUAL LOGIN & SET SESSION VARIABLES $_SESSION['user'] = $username; $_SESSION['level'] = $level['level']; $_SESSION['loggedin'] = '1'; $_SESSION['id'] = $level['userid']; When signed in as a user, the username shows up on the top right page. Then, if I click a particular product of another user it changes the session variable to that of the other user. Why would this happen? It's really odd. Ok, not sure what the problem is....hard to explain. I am trying to setup a login script but I get the normal: Warning: session_start() [function.session-start]: Cannot send session cache limiter error code. I have no white space above to cause problem. I have used this same code written by Jpmaster77 on a number of sites. What the strange thing is it also messed up a couple of my css text boxes. See the difference: http://www.monstersgonewild.ca/index.php - Problem http://www.monstersgonewild.ca/index1.php - Without session() I would post the code of the original page but it is 600+lines and growing. Anybody have any ideas? Hey guys, First of all thanks in advance for all the help you can give me. I'm using a php shopping script called plaincart to create a webstore. All is fine but the admin part is not working properly. When i go to http://localhost/admin it redirects to http://localhost/admin/admin/login.php The index.php is in the root of the server and the admin files are in a folder called admin... What is wrong? Please tell me if you need any code. Thank you Im installing and testing a web application, and im having a strange bug that annoyes me because it dint have any sense and also it dont affects really to the web functionality: if($_POST["eliminar"]==""){ $consulta='SELECT * FROM impressora where Activa=0'; $result=mysql_query($consulta,$conexion); echo"<table align=CENTER class='sample'>"; echo"<p align=center>LLISTA D'IMPRESSORES INACTIVES.</p>"; printf("<th>MODEL</th><th>MARCA </th>"); while($fila=mysql_fetch_array($result,MYSQL_ASSOC)){ echo"<tr>"; echo "<td>" . $fila["Model"] . "</td>"; echo "<td>" . $fila["Marca"] . "</td>"; echo"</td>"; if($_SESSION["admin"]!=0){ ?> <form method= "post" ACTION="impressores_inactives.php?idr=<?php echo($fila["Id_impressora"])?>"> <td colspan="2"><INPUT TYPE ="SUBMIT" NAME="eliminar" VALUE="Eliminar"></td> </form></td> <?php } echo "</tr>"; } echo"</table>"; }else{ echo 'eliminado'; echo $_POST["eliminar"]; //BORRAMOS DE LA BBDD LA IMPRESSORA $consulta="delete from impressora where Id_impressora='".$_GET["idr"] ."'"; $result=mysql_query($consulta); echo "<meta http-equiv=Refresh content=\" ; url=../Impressores/impressores_inactives.php\">"; } The problem is that php say that eliminar is undefinded, and if i test $_POST it says its empty. See that eliminar is the name of the submit post and its checked for a function that deletes a item. The problem is that script is actually working. I can delete the printer but with that error... and if i test the value of eliminar is always empty. Ask for any other explanation without a problem , the code is in spanish. I have done a simple insert query on a comment system but it works once and when i go back and try add another record it just doesnt work at all. Code: [Select] <?php include ("class.database.connection.php"); // the database connection class include ("settings.config.php"); // hostname, password ect $name = $_POST["UserName"]; $email = $_POST["UserEmail"]; $comment = $_POST["UserComment"]; $sql="INSERT INTO comments (name, email, comment)VALUES('$name', '$email', '$comment')"; $result=mysql_query($sql); ?> if anyone can help me with this i would be a happy chappy! OK, this is a strange one I am hoping someone can help with. I have a file with a heap of functions which work fine. This file is included in my other files, and the function to display the content is called. For example I include the master file in guestbook.php, which calls showGuestbook(). Same with contact.php, it calles showContact(); etc. The file is outside the web root of the website calling it. So I went to add another function called downloadFile(). When I try to call the function, it gives me the "call to undefined function" error. I have tried renaming it to a few diff things, same error. So I thought there could be a brace error somewehere in the file. This is the strange bit.... When I put that function at the top of the file, the page seems to fail to parse. None of the functions are available... The function so far is simply: function downloadFile() { echo "Download File"; } Can anyone shed some light on this strange behaviour, especially the errors that occur just because I move the code higher up the file. Hi, I get this error when I load the page, but after hitting ctrl f5 to refresh.. the error goes away and the page works perfectly. I have edited out my details. Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'user'@'localhost' (using password: YES) Access denied for user 'user'@'localhost' (using password: YES) I know everything is set right.. I just don't get it.. I am going crazy of this. Ive cleared my browser cache.. even tried it on my android phone and it does the same thing. Thanks, Deceevn Hi all! Firstly, I'd like to say a big hello to everyone Right, so I have a bit of a strange problem. I get no error, but my page stalls. So here's what I've got, a simple alphabet (A-Z) in capitals at the top of the page, created by: $alphabet = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'); // then further down the page I have it looped as so: <?php foreach($alphabet as $link): ?> <a href="suppliers.php?filter=<?php echo $link; ?>"> <?php echo $link; ?> </a> | <?php endforeach; ?> So that's all cool. I then have this at the top of the page: $the_suppliers = (isset($_GET['filter']) && preg_match("/[^A-Z]*/",$_GET['filter'])) ? $suppliers -> get_all($_GET['filter']) : $suppliers -> get_all('all'); Now I have preg_match() in there as I was using ctype_alpha() to check for only alphabetical chars, and thought that might be my problem, but still get it with preg_match(); Anyway, my class method (get_all()) is: public function get_all($filter){ global $database; if($filter == 'all'){ $sql = "SELECT * FROM " . self::$table . " WHERE on_web = 1 ORDER BY RAND() LIMIT 10"; }else{ $sql = "SELECT * FROM " . self::$table . " WHERE on_web = 1 AND LEFT(name,1) = '" . $database -> sql_prep($filter) . "'"; } return self::find_by_sql($sql); } Now this works fine for b-z, but for some reason when the filter=A it just hangs..... I have ran the sql in phpmyamin and it returns the result straight away, so I know it's not the sql. Does anyone here know where I might be going wrong here? It's very odd and I've never come across this before, and not getting an error doesn't really help much. Any suggestions or pointers will be gratefuly received Hi, I was using latest php5 but as I couldn't find a ffmpeg-php extension for it, I actually swapped to latest php4, and now I'm having a problem when using fopen for urls, when it's used it just stops the script with no error / warning, i tried using the same php.ini used with my php5 too but it changes nothing. Btw allow_url_fopen is enabled. Thanks if someone can help. Hi!!! i created this code for my chatroom!! Code: [Select] <?php $usern=$_SESSION['etchat_'.$this->_prefix.'username']; $con1 = mysql_connect("localhost","manosir_main","***********"); if (!$con1) { die('Could not connect: ' . mysql_error()); } mysql_select_db("manosir_manoshos_main", $con1); $query = "SELECT etchat_user_online_user_sex AS gender FROM db1_etchat_useronline WHERE etchat_user_online_user_name = '$usern'"; $result= mysql_query($query); $user = mysql_fetch_assoc($result); if($user['gender']=='m'){ ?> <span style=" font-size: 12px; font-family: tahoma; direction: rtl; font-weight: bold; color: #0000FF " > male</span> <?php } if($user['gender']=='f'){ ?> <span style= "font-size: 12px; font-family: tahoma; direction: rtl; font-weight: bold; color: #FF47D1" > female</span><?php } mysql_close($con1); ?> it gets the users`s username when he login from session and get his/her sex by mysql!!!!! the starnge part is this: when i login to page it doesnt work..but when i refresh the page it works in first opening the $usern is empty!! whats wrong!!!!!!! Hi folks, I have an initial redirect page which directs to my main page, sending two reference variables as $_GET parameters: Code: [Select] header("Location: /ob/index.php?id=".$id."&ref=".$ref); The first thing this main page does is include a file which checks for those two values: Code: [Select] if (substr_count($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip')) ob_start("ob_gzhandler"); else ob_start(); session_start(); error_reporting(E_ALL); if (isset($_GET['id']) && isset($_GET['ref'])){ $_SESSION['id'] = $_GET['id']; $_SESSION['ref'] = $_GET['ref']; } if(!isset($_SESSION['id']) || $_SESSION['id']=="" || !isset($_SESSION['ref']) || $_SESSION['ref']==""){ echo ("This service requires a valid ID to run - your session may have expired, please refresh your browser to try again."); exit; } The main page loads fine - meaning that the $_SESSION variables have been set correctly. However, when the next page loads (including the same file), the $_GET values obviously aren't there but the $_SESSION variables should be intact. I am getting fails every time though in Opera and Safari (have checked in IE, FF and Chrome and all seems well). However, if I then refresh the browser - in both Opera and Safari - the next page loads fine and the $_SESSION variables are correctly set. Any ideas on this at all? Many thanks in advance, Rich Hi Guys First sorry for my bad english. I have a strange problem with php upload form. When i click on submit button ( with uploaded pdf ) nothing happens. The pdf file is 17MB, but with smaller PDF the form works perfectly. Here is the form code: Code: [Select] <form id="pdf" name="pdf" method="post" action="" target="_self" enctype="multipart/form-data" > <p align ="center"> <input type="hidden" name="app_id" value="<?php print $app_id?>"> <input type="hidden" name="MAX_FILE_SIZE" value="1000000000000"> <input type="file" name="file1" value="Upload PDF" device="files" accept="text/pdf" /> <input type="submit" name="sent" value="Send" /> </p> </form> at the beginning of the upload.php i have the following lines: Code: [Select] $sent = isset($_POST['sent']) ? $_POST['sent'] : false; When i debug $sent and $_POST i saw that they are empty : ( With smaller PDF works perfectly but now with 17MB pdf $sent is empty,the result from print_r($_POST) is Array() in php.ini i changed MAX UPLOAD to 20MB and then restarted my apache , but i think this doesn't matter. This problem is very strange : ) Thanks in advance:) Friends this is a very strange problem i,m facing i made a form by which you can enter comments to a topic i get the comment title and comment topic and date and the name and e mail of the one who insert a comment according to these variables $id1=$row2['id']; echo "$id1"; //Comment poster,s name $name =strip_tags(@$_POST['coname']); //Comment title $title =strip_tags(@$_POST['comtitle']); //ment poster,s email $mail =strip_tags(@$_POST['comemail']); //comment $com =strip_tags(@$_POST['limitedtextarea']); //comment,s date $d= date("Y-m-d"); notice that i,m printing the topic id and i used the variable $id1 to get it inorder to use it to show the comments for this topic later and it shows the right id for the shown topic then i used this code to insert these variable into the database if(isset($_POST['add']) and $_POST['add']=='comm'){ $insertcomm =mysql_query("INSERT INTO comments (com_name,com_title,com_mail,comment,com_date,tid) VALUES ('$name','$title','$mail','$com','$d','$id1')") or die("comments were not inserted"); if(isset($insertcomm)){ echo "comment inserted ";} } I am trying to do isset($_GET but I have a bizarre problem come up. I am using "id" as one of my fields but when I try to use it in the code it says it is not recognised. However I use this field quite widely. The code its coming up with is "Undefined variable: id" but I cant see why it has a problem with id. My code is: <?php if(isset($_GET['id'])){ $sql = mysql_query("SELECT * FROM productfeed WHERE id='$id' LIMIT 1"); } { while($row = mysql_fetch_array($sql)) $id = $row['id']; $image = $row['awImage']; $link = $row['link']; $description = $row['description']; $fulldescription = $row['fulldescription']; $price = $row['price']; echo "<div class=\"productdisplayshell\"> <div class=\"productdisplayoutline\"> <div class=\"productborder\"><center> <a href=\"$link\" target=\"_blank\" ><img src=\"$image\" /></a> </center> </div></div> <div class=\"productdescriptionoutline\"><div class=\"productdescriptionbox\"> <a href=\"$link\" target=\"_blank\" >$description</a> </div><div class=\"productfulldescriptionbox\"> $fulldescription </div></div> <div class=\"productpriceoutline\"> <div class=\"productpricebox\"><center>&#163; $price</center></div> <div class=\"productbuybutton\"><center><a href=\"$link\" target=\"_blank\" ><img src=/images/buybutton.png /></a></center></div></div></div>"; } ?> Hi, I've done a search and cant find anything related to my problem. I have a newsfeed on my site and i want it to display with the latest news at the top. I have this code: Code: [Select] $get_news = "SELECT title, text, DATE_FORMAT(datetime, '%e %b %Y at %T') AS datetime FROM newsfeed ORDER BY datetime DESC"; This works fine on one of my sites but on another i've just hit a problem. It seems to sort only by the day, not the rest of the date. I made a news post today with date and time of "27 Mar 2011 at 12:54:02" but a post from "28 Jan 2011 at 19:59:52" is above it. Any ideas why this is happening? Thanks, Alex I submit text to my MySQL database using a form on my site. When I look at the text in my database, sometimes, there are strange characters. The strange characters are caused by quotation marks, em dashes, apostrophes and foreign letters of the alphabet. I think that this only happens when the source of the text is a Windows program. I understand that this is a character encoding issue, but I don't fully understand the subject. I've spent the last few hours researching it, but it's only confused me.
My site uses UTF-8 encoding:
<meta http-equiv="content-type" content="text/xml; charset=utf-8" />The collation of my database is utf8_general_ci. My form looks like this: <form action="" method="post"> </form>As you can see, an accept-charset="utf-8" attribute has not been specified. Questions 1) I am guessing that my problem is that the Windows characters are being misinterpreted by my UTF-8 setup. Is that correct? 2) If so, is there a way that I can safely convert the Windows characters to UTF-8 during the submission process? 3) Should I also specify an accept-charset="utf-8" attribute on the form? 4) When I paste the Windows text directly into my database without using the form, the characters save without turning into the strange characters. But they don't render properly on my site. Can't browsers identify Windows characters? This topic has been moved to JavaScript Help. http://www.phpfreaks.com/forums/index.php?topic=325313.0 I have strange problem with SOAP. My file SchoolAPI look like that: <?php require_once('../require/constants.php'); require_once('../require/connection.inc.php'); class SchoolAPI{ private $dbh; public function __construct() { $this->dbh = new PDO(DRIVER.':host='.HOST.';dbname='.DB, USER, PASSWORD); } //function return all subcjects public function getSubjects(){ $sth = $this->dbh->prepare(' SELECT id, nazwa ROM subjects'); $sth->execute(); return $sth->fetchAll(PDO::FETCH_NUM); //return array(array("1", "subject1"),array("2", "subject2")); } //function return all classes public function getClasses(){ $sth = $this->dbh->prepare(' SELECT id, nazwa FROM classes'); $sth->execute(); return $sth->fetchAll(PDO::FETCH_NUM); //return array(array("1", "class1"),array("2", "class2")); } } ini_set("soap.wsdl_cache_enabled", "0"); $server = new SoapServer("SchoolAPI.wsdl"); $server->setClass("SchoolAPI"); $server->handle(); ?> wsdl file is named SchoolAPI.wsdl and look like that: <wsdl:definitions xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://schema.example.com" targetNamespace="http://schema.example.com" > <wsdl:types> <xsd:schema targetNamespace="http://schema.example.com"> <xsd:complexType name="myarry2"> <xsd:sequence> <xsd:element minOccurs="0" maxOccurs="unbounded" name="row" nillable="true" type="xsd:string" /> </xsd:sequence> </xsd:complexType> </xsd:schema> <xsd:schema targetNamespace="http://schema.example.com"> <xsd:complexType name="myarray"> <xsd:sequence> <xsd:element minOccurs="0" maxOccurs="unbounded" name="table" nillable="true" type="tns:myarry2" /> </xsd:sequence> </xsd:complexType> </xsd:schema> </wsdl:types> <wsdl:message name="getSubjectsRequest"></wsdl:message> <wsdl:message name="getSubjectsResponse"> <part name="getSubjectsReturn" type="tns:myarray"/> </wsdl:message> <wsdl:message name="getClassesRequest"></wsdl:message> <wsdl:message name="getClassesResponse"> <part name="getClassesReturn" type="tns:myarray"/> </wsdl:message> <wsdl:portType name="SchoolAPIPortType"> <wsdl:operation name="getSubjects"> <wsdl:input message="tns:getSubjectsRequest"/> <wsdl:output message="tns:getSubjectsResponse"/> </wsdl:operation> <wsdl:operation name="getClasses"> <wsdl:input message="tns:getClassesRequest"/> <wsdl:output message="tns:getClassesResponse"/> </wsdl:operation> </wsdl:portType> <wsdl:binding name="SchoolAPIBinding" type="tns:SchoolAPIPortType"> <soap:binding transport="http://schemas.xmlsoap.org/soap/http"/> <wsdl:operation name="getSubjects"> <soap:operation soapAction="urn:SchoolAPI/getSubjects" style="document"/> <wsdl:input> <soap:body use="literal"/></wsdl:input> <wsdl:output><soap:body use="literal"/></wsdl:output> </wsdl:operation> <wsdl:operation name="getClasses"> <soap:operation soapAction="urn:SchoolAPI/getClasses" style="document"/> <wsdl:input> <soap:body use="literal"/></wsdl:input> <wsdl:output><soap:body use="literal"/></wsdl:output> </wsdl:operation> </wsdl:binding> <wsdl:service name="SchoolAPI"> <wsdl:port name="SchoolAPIPort" binding="tns:SchoolAPIBinding"> <soap:address location="http://localhost:82/myschool/webservices/SchoolAPI.php" /> </wsdl:port> </wsdl:service> </wsdl:definitions> The problem is that correct data is returned olny by first function declarated in <wsdl:binding> section. In this example correct data will be return by getSubjects function, and function getClassses return null. However, if we change order and put getClasses operation first in binding section like this: <wsdl:binding name="SchoolAPIBinding" type="tns:SchoolAPIPortType"> <soap:binding transport="http://schemas.xmlsoap.org/soap/http"/> <wsdl:operation name="getClasses"> <soap:operation soapAction="urn:SchoolAPI/getClasses" style="document"/> <wsdl:input> <soap:body use="literal"/></wsdl:input> <wsdl:output><soap:body use="literal"/></wsdl:output> </wsdl:operation> <wsdl:operation name="getSubjects"> <soap:operation soapAction="urn:SchoolAPI/getSubjects" style="document"/> <wsdl:input> <soap:body use="literal"/></wsdl:input> <wsdl:output><soap:body use="literal"/></wsdl:output> </wsdl:operation> </wsdl:binding> then correct data will be return by getClasses function, and getSubjects will return null. Do you know what is going on? I do my best to solve this problem and I have no idea what is wrong... |