PHP - Get Headers From Ob_get_contents
Hi;
I want to get the response headers using ob_get_contents ?
For example using file_get_contents, it is easy by accessing the variable $http_response_header like that :
<?php $content = file_get_contents($url); print_r($http_response_header); ?>But how to do that using ob_get_contents without a file_get_contents ? something like for example : <?php ob_start(); include($path_to_script_here); $string = ob_get_contents(); // Access the headers here ob_end_clean(); ?>Thank you Edited by Dareros, 07 October 2014 - 06:20 PM. Similar TutorialsHello, I am trying to change the string 'IRM Reporting Portal' to 'BIS Reporting Portal' as illustrated in the attachment 'Requirements.jpg'. On inspecting 'IRM Reporting Portal', I noticed the function DoResizeMS (). I found this function call in only one file across the entire code. That file is 'header.dsp' (attached) This leads me to believe that the string 'IRM Reporting Portal' is being dynamically generated in 'header.dsp' (Between ob_get_contents() and ob_start()) How do I change that string to 'BIS Reporting Portal'? Please help. I am a PHP newbie. Thanks, Trinanjan. Hi all, I need some help. My ob_get_contents() is empty and gives me a empty file everytime. I tried different cache script it is still the same. I have also tried fwrite($fp, 'hello') In this case, it successfully writes to the file. But when i use ob_start and ob_get_contents, it will be empty. can anyone please advice. My simplified script is here <?php // Settings $cachedir = 'cache/'; // Directory to cache files in (keep outside web root) $cachetime = 600; // Seconds to cache files for $cacheext = 'html'; // Extension to give cached files (usually cache, htm, txt) // Ignore List $ignore_list = array( '/rss.php', '/search/' ); // Script $page = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; // Requested page $cachefile = $cachedir . md5($page) . '.' . $cacheext; // Cache file to either load or create $ignore_page = false; for ($i = 0; $i < count($ignore_list); $i++) { $ignore_page = (strpos($page, $ignore_list[$i]) !== false) ? true : $ignore_page; } $cachefile_created = ((@file_exists($cachefile)) and ($ignore_page === false)) ? @filemtime($cachefile) : 0; @clearstatcache(); // Show file from cache if still valid if (time() - $cachetime < $cachefile_created) { //ob_start('ob_gzhandler'); @readfile($cachefile); //ob_end_flush(); exit(); } // If we're still here, we need to generate a cache file ob_start(); ?> All My HTML AND PHP CODES TO RUN THE SITE <?php // Now the script has run, generate a new cache file $fp = @fopen($cachefile, 'w'); // save the contents of output buffer to the file @fwrite($fp, ob_get_contents()); @fclose($fp); ob_end_flush(); ?> hello, I'm using this code: <?php if (isset($_REQUEST['email'])) { $name = $_REQUEST['name'] ; $email = $_REQUEST['email'] ; $code = $_REQUEST['code'] ; $from = $email; mail("email@email.com", "Winner request id: $name - code: $code", "From:" . $from); } $headers = "From:" . $from; header('Location: index.php?done'); ?> And I'm getting: Code: [Select] Warning: Cannot modify header information - headers already sent by (output started at /home/site/public_html/config.php:10) in /home/site/public_html/send.php on line 13 This worked before. Many thanks Hi all, It's probably something obvious, but perhaps someone could explain to me what is going on here... I spent a lot of time this afternoon trying to fix what seemed to be a very odd problem, which involved an image being chucked out like so: Code: [Select] <?php header("Content-Type: image/png"); echo file_get_contents("http://www.example.com/some_image.png"); ?> Except the image was coming out as corrupted, ultimately because I had some white space before this snippet (foolish, I know). The reason it took me so long to diagnose the problem was because I wasn't getting PHP errors (even though they were switched on). As far as the script was concerned, it seems I wasn't sending anything before attempting to modify the headers. After solving the problem, I put the following little bit of code together, trying to force a header error... And yet I get nothing. It all works, and I get redirected, when I'm sure I shouldn't be. I've run this on a default install of XAMPP, and a configured CentOS server, and the same thing happens on both. If anyone can explain to me what is going on, I would be most appreciative! There are some inline comments which should help clarify what I mean. Code: [Select] <?php error_reporting(E_ALL); ini_set("display_errors","1"); ?> <p>Hello! The very existence of this text should really have resulted in the headers being sent... Shouldn't it?</p> <p>So I'd expect to see a "Headers already sent" message... Shouldn't I?</p> <?php // Headers sent? echo "<p>"; echo "Headers "; if(!headers_sent()) { echo "not "; // This "not" does echo out. } echo "sent.</p>"; // This WILL start a session (or at least, won't throw an error) session_start(); // This redirect WILL work, and you will never see the above messages. header("Location: redirect.php"); // What?! ?> Thanks! Dave I have a form as a php include and it's giving me this error: Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/altimusw/public_html/www.csmsolution.com/register.php:6) in /home/altimusw/public_html/www.csmsolution.com/core.php on line 17 Here is the main page that includes the php include: <!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=iso-8859-1" /> <title>CSM Solution </title> <style type="text/css"> <!-- #Layer1 { position:absolute; left:100px; top:70px; width:800; height:62px; z-index:1; } .style1 { font-family: Arial, Helvetica, sans-serif; color: #535959; font-size: 12px; } --> </style> </head> <body> <div id="Layer1"> <table width="800" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="97"><img src="images/header.jpg" width="800" height="59" border="0" usemap="#Map" /><br /> <img src="images/navbar.jpg" width="800" height="38" border="0" usemap="#Map2" /> <map name="Map2" id="Map2"> <area shape="rect" coords="506,1,552,26" href="contact.php" /><area shape="rect" coords="459,1,502,26" href="form.php" /><area shape="rect" coords="396,-1,455,25" href="login.php" /> <area shape="rect" coords="357,0,393,26" href="index.php" /> </map> </td> </tr> <tr> <td><img src="images/welcome_img.jpg" width="131" height="21" /></td> </tr> <tr> <td><?php include("form.php"); ?></td> </tr> <tr> <td><img src="images/placeholderclouds_bottem.jpg" width="800" height="60" /></td> </tr> </table> </div> </body> </html> Here is the Core.php the error is referring to: <?php //CSM Solution Core. Rahul Parkar 2010 $_config = array(); $_config['db_type'] = "mysql"; $_config['db_server'] = "localhost"; $_config['db_username'] = "altimusw_csm"; $_config['db_password'] = ']17=rXh7tJ0~'; $_config['db_database'] = "altimusw_csm"; $_config['db_tbl_prefix'] = ''; $_config['user_table'] = "customers"; $_config['user_username'] = "username"; $_config['user_password'] = "password"; $_config['user_active'] = "approved"; $_config['user_role1'] = "prirole"; $_config['user_role2'] = "secrole"; $_config['pass_hash_func'] = "SHA1"; session_start(); function fetch_row($query) { build_connection($db); sql_exec($db, $query, $result); sql_fetchone($result, $row); finish_connection($db); return $row; } function build_connection(&$db) { global $_config; if ($_config['db_type'] == "mysql") { $db = mysql_connect($_config['db_server'], $_config['db_username'], $_config['db_password']) or die(mysql_error()); mysql_select_db($_config['db_database'], $db) or die(mysql_error()); } } function sql_exec(&$db, $query, &$result) { global $_config; if ($_config['db_type'] == "mysql") $result = mysql_query($query, $db) or die(mysql_error() . "/$query"); } function sql_fetchone(&$result, &$row) { global $_config; if ($_config['db_type'] == "mysql") { $row = mysql_fetch_assoc($result); @mysql_free_result($result); } } function sql_do(&$db, $query) { global $_config; sql_exec($db, $query, $noclue); finish_connection($db); } function finish_result(&$result) { global $_config; if ($_config['db_type'] == "mysql") @mysql_free_result($result); } function finish_connection(&$db) { global $_config; if ($_config['db_type'] == 'mysql') mysql_close($db); } function check_auth($username, $password) { global $_config; $row = fetch_row("SELECT `" . $_config['user_active'] . "`, `" . $_config['user_password'] . "`, " . $_config['pass_hash_func'] . "('" . $password . "') AS `passcheck`, `fname`, `lname` FROM `" . $_config['user_table'] . "` WHERE `" . $_config['user_username'] . "`='" . $username . "' LIMIT 1"); if (!$row[$_config['user_active']]) { return -1; } else { if ($row[$_config['user_active']] != 1) { return -2; } else if ($row[$_config['user_password']] == $row['passcheck']) { $_SESSION['username'] = $username; $_SESSION['fname'] = $row['fname']; $_SESSION['lname'] = $row['lname']; return 1; } else { return -1; } } } function load_access() { global $_config; if ($_SESSION['username']) { $row = fetch_row("SELECT `" . $_config['user_role1'] . "` FROM `" . $_config['user_table'] . "` WHERE `" . $_config['user_username'] . "`='" . $_SESSION['username'] . "' LIMIT 1"); $role1 = $row[$_config['user_role1']]; $_SESSION['role1'] = $role1; } else { return -1; } } function has_level() { for ($i = 0; $i < func_num_args(); $i++) { if (func_get_arg($i) == $_SESSION['role1']) { return 1; } } return 0; } ?> Okay, I've read all the rules for Headers...still can't it to execute properly. At the bottom is my code. I basically want to check the database, see if the user is already registered, and redirect as appropriate (there is no HTML on my page, no info sent to the browser). My server doesn't send any error messages. All I get are white screens. Now, if I do the headers_sent()...it tells me that it's sent right after the initial connection with the database. The ONLY way I can get it to redirect, is if I put <?php header("location:index.php?msg=3"); ?> at hte very top, but then I can't evalute...which doesn't help me much. Here is the code (obviously, I have more...but it's sending headers in these lines) <?php $connection = mysql_connect("localhost","####","#####"); if (!$connection){ echo mysql_errno().": ".mysql_error()."<br/>"; exit; } if(!mysql_select_db("prixaurora")){ echo("Database not found<br>"); } Hi I am getting the following php error that is on all my pages and it works fine on the other pages except index.php Code: [Select] <?php session_start(); include 'includes/conn_db.php'; if (isset($_POST['submit'])) { if (empty($_POST['userName'])) { $u = FALSE; $nouser = '<font color="red" size="2" face="arial">You forgot to enter your username!</font>'; } else { $u = $_POST['userName']; } if (empty($_POST['userPassword'])) { $p = FALSE; $nopass = '<font color="red" size="2" face="arial">You forgot to enter your password!</font>'; } else { $p = $_POST['userPassword']; } $errorMessage = $nouser . "<br>" . $nopass; if ($u && $p) { $query = "SELECT * from clients WHERE email = '$u' AND pword = '$p'"; $result = mysql_query($query, $conn); while ($row = mysql_fetch_assoc($result)){ if ($u == $row["email"] && $p == $row["pword"]) { $query_name = "SELECT * FROM clients WHERE email = '$u' AND pword = '$p'"; $result_name = @mysql_query ($query_name); while ($row_name = mysql_fetch_assoc($result_name)){ $client_id_out = $row_name['client_id']; $firstname_out = $row_name['firstname']; $lastname_out = $row_name['lastname']; // Create sessions $_SESSION['client_id'] = $client_id_out; $_SESSION['firstname'] = $firstname_out; $_SESSION['lastname'] = $lastname_out; ob_end_clean(); header ("Location: myaccount.php"); exit(); }} } } } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" /> <title></title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <link href="style.css" rel="stylesheet" type="text/css" /> <link href="layout.css" rel="stylesheet" type="text/css" /> <script src="js/jquery-1.3.2.min.js" type="text/javascript"></script> <script src="js/cufon-yui.js" type="text/javascript"></script> <script src="js/cufon-replace.js" type="text/javascript"></script> <script src="js/Futura_Bk_BT_400.font.js" type="text/javascript"></script> <script src="js/Futura_XBlk_BT_400.font.js" type="text/javascript"></script> <!--[if lt IE 7]> <script type="text/javascript" src="js/ie_png.js"></script> <script type="text/javascript"> ie_png.fix('.png'); </script> <![endif]--> </head> Thanks Lional My error: Code: [Select] Warning: Cannot modify header information - headers already sent by (output started at /www/zxq.net/w/e/b/webaskius/htdocs/index.php:7) in /www/zxq.net/w/e/b/webaskius/htdocs/functions.php on line 6 Now, I can't quite figure out why it's doing this. The section of code that is causing this problem is above any HTML tags, at the very beginning of the file. <?php include('functions.php'); ?> <link href="style.css" rel="stylesheet" type="TEXT/CSS"> <img src="logo.png" border="0"> <div id="maincontent"> As you can see, the functions that cause this error are at the VERY beginning of my file. This is where they are called within index.php: if(mysql_num_rows($query_verify_login) > 0) { create_cookie(10000, 'user', $username); redirect('index.php'); } else { echo 'Woops! You\'ve entered in the wrong username and password combination!'; } And finally, my functions: <?php //our cookie creator function function create_cookie($time, $name, $data) { setcookie($name, $data, time()+$time); } function redirect($url) { header('Location: '. $url .''); } function get_replies($id) { //set query to find posts that match our id $query_get_replies = mysql_query("SELECT * FROM replies WHERE to = {$id}"); return mysql_num_rows($query_get_replies); } ?> I am trying to do a page redirect using the header() function.
I am aware that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP.
and also that reading code with include, or require, functions, or another file access function, can create spaces or empty lines that are output before header() is called. thus causing a redirect failure.
I have therefore used this output control function (ob_start(); ob_implicit_flush() right at the top of my page.
I am then creating the redirect like this as part of my login() function:
if($user_role == ADMIN_LEVEL || $user_role == EDITOR_LEVEL) { if (!headers_sent($filename, $linenum)) { return header("Location:http://mysite.com/dashboard.php"); exit; } else { echo "Headers already sent in $filename on line $linenum\n" . "Cannot redirect\n"; exit; } }Unfortunately I am still getting this error: Headers already sent in /home/steveoje/public_html/login.php on line 1 Cannot redirectAnd this is what I have at the top of the login.php page: <?php ob_start(); ob_implicit_flush(); require_once 'includes/config.php'; if(isset($_POST['submit'])) { login($_POST['username'], $_POST['password']); } require_once "includes/header.inc.php" ?> //other html contentSo why would the redirect fail in this instance? Thanks. Edited by terungwa, 28 September 2014 - 05:28 AM. Hi I have coded a form, and dependant upon the result I would like to re-direct to a different page. The problem is I am getting the "headers already sent" message..Is there a way around this, I can't use JS re-direction because of accessibility. E.G: <?php //Do stuff with form data if($result = y){ header(Location: "mysite.php/thankyou.php"); } else{ header(Location: "mysite.php/error.php"); } ?> In-fact whilst typing this I have an idea, why not do all of this at the top of the page before headers are sent? I'll go ahead and try it now, in the meantime if anybody knows how or if headers can be sent after output please let me know thanks. Sorry to ask such a "newb" question, but I'm a bit fuzzy on this... When you get a "Headers Already Sent" error, can that be caused by spaces between your HTML?? I am having trouble getting my Log-In script to work, and I finally broke down and added Output Buffering to get things working, although a couple of senior members here scolded me in the past as basically saying it was slopping coding to need Output Buffering?! Here is my problematic code... Code: [Select] <?php // Initialize a session. session_start(); // Access Constants. require_once('config/config.inc.php'); ?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <!-- HTML Metadata --> <title>My Site - Log In</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="description" content="Log in to your account to access special member-only areas."> <meta name="keywords" content=""> <!-- Page Stylesheets --> <link type="text/css" rel="stylesheet" href="css/main.css" /> <link type="text/css" rel="stylesheet" href="css/dropdown.css" /> <link type="text/css" rel="stylesheet" href="css/log_in.css" /> </head> <body> <div id="wrapper" class="clearfix"> <div id="inner"> <?php I have session_start() at the very beginning, and no spaces between my opening PHP and HTML, so the only thing I can figure is the carriage returns within my HTML?! Thanks, Debbie P.S. Is using Output Buffering really that evil?? Simple question. How do I redirect the header location on a session page. I thought I could go a different direction, but now I'm back to this one. I tried just adding header("Location: newpage.php") at the end of a query insert, but it gave me the warning that it can't modify the head. But I need the page to redirect after the query is done. Thoughts? Hi everyone, thanks for reading. I have live HTTP headers installed on Firefox, hopefully some of you will be familiar with this addon. I would like to make a php script that is able to do what live http headers does, that is, I'd like to be able to give the script a URL and it will return all the headers. I know how to use CURLOPT_HEADER and CURLOPT_RETURNTRANSFER but this doesn't quite do what I'm looking for. For example if I go to : https://adwords.google.com/o/Targeting/Explorer?__c=1000000000&__u=1000000000&ideaRequestType=KEYWORD_STATS#search.none with Live HTTP Headers switched on I get the following data under the 'generators' tab GET /o/Targeting/Explorer?__c=1000000000&__u=1000000000&ideaRequestType=KEYWORD_STATS GET /cues/cues.js GET /ga.js GET /cues/cb?__u=1000000000&__c=1000000000&l=en_US&v=5E5BE5A3D9AD806BA7FF2C9FE2E15DF9&a=1000000000 GET /cues/metrics/?requestType=external&startTime=1287073462287&browserStartTime=1287073471028&browserEndTime=1287073472156 GET /cues/metrics/?requestType=notabs&startTime=1287073462287&browserStartTime=1287073471028&browserEndTime=1287073472162 GET /o/Targeting/clear.cache.gif GET /__utm.gif?utmwv=4.8.6&utmn=606563096&utmhn=adwords.google.com&utmcs=UTF-8&utmsr=1280x1024&utmsc=24-bit&utmul=en-gb&utmje=1&utmfl=10.1%20r85&utmdt=Google%20AdWords%3A%20Traffic%20Estimator&utmhid=1700273830&utmr=-&utmp=%2FAnonymous%2FTargetingExplorer%2FKeywordStats%3Fcontext%3DHistoryChange%26__c%3D1000000000%26__u%3D1000000000%26ideaRequestType%3DKEYWORD_STATS&utmac=UA-3418223-1&utmcc=__utma%3D229779660.119716289.1279381615.1286975241.1287071773.41%3B%2B__utmz%3D229779660.1279381615.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmu=q GET /o/Targeting/F098CA184E661C697D29595B67C57BAA.cache.png GET /favicon.ico POST /o/Targeting/captcha?__u=1000000000&__c=1000000000&challengedService=/o/Targeting/g 6|1|4|https://adwords.google.com/o/Targeting/|02990CDDCF521142AE1B373ED2008D94|_|getToken|1|2|3|4|0| GET /o/Targeting/captchaData?token=AJtyWwbzrehZWrT8puwruvcvjxCHnRJWKqWvpWfw54W2AjmF2cAlFpYLcL13KE0hi7retjZclcFHqnd8yMC0vDfP4tRNXISZ1QfbdLBK_WVW1wqlzqrR2ouSBgclxUiU0RiHUXHWy1VrIlo5oq3xNeemD-dZHQr0ed1s6p-dBF9mvyvkct1BifkXPAD___W32qxemYPbi6qvgpec3-rgsesGVUoYPglxzg&type=IMAGE GET /favicon.ico However my current CURL script only returns the following HTTP/1.1 200 OK Cache-Control: no-cache, no-store, max-age=0, must-revalidate Pragma: no-cache Expires: Fri, 01 Jan 1990 00:00:00 GMT Date: Thu, 14 Oct 2010 17:05:12 GMT Content-Type: text/html; charset=UTF-8 X-Invoke-Duration: 8 X-Content-Type-Options: nosniff X-Frame-Options: SAMEORIGIN X-XSS-Protection: 1; mode=block Server: GSE Transfer-Encoding: chunked This is my script so far <?php $url="https://adwords.google.com/o/Targeting/Explorer?__c=1000000000&__u=1000000000&ideaRequestType=KEYWORD_STATS#search.none"; $useragent="Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1"; //next open a new CURL session $ch = curl_init(); curl_setopt ($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_USERAGENT, $useragent); curl_setopt ($ch, CURLOPT_HEADER, 1); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt ($ch, CURLOPT_FRESH_CONNECT, 0); curl_setopt ($ch, CURLOPT_CAINFO, dirname(__FILE__)."/cacert.pem"); $source=curl_exec($ch); //the source code is now stored in $source, lets close the curl session curl_close($ch); echo $source; ?> Hi Guys
I have recently been looking into implementing browser caching after reading this: https://developers.g...ctices/cachingĀ
There are a few things in that google article that don't make much sense to me so I'm hoping someone can clarify.
Firstly Question
The document says:
" we recommend that you configure your web server to explicitly set caching headers and apply them to all cacheable static resources"
This implies you can set caching headers for just some resources. How would you do this? Lets assume I only wanted to set caching headers for a file styles.css - would I need to output headers within the CSS file and then change the extension to .php? e.g.
<link rel="stylesheet" href="styles.php"/>Second question Etags have me very confused. How would you set etag headers for specific files and then generally? And if you set the etag in the header of the main php page does that mean everything gets cached? Any help someone can provide would be very, very welcome! Drongo I keep getting the following error and its frustrating the hell out of me, supposedly to do with whitespace but i see no problems in my code. Error: Warning: Cannot modify header information - headers already sent by (output started at /home/robwdri1/public_html/bsddesigns.co.uk/eventline/carddetails.php:18) in /home/robwdri1/public_html/bsddesigns.co.uk/eventline/carddetails.php on line 120 Code: Code: [Select] <?php // Date from form put into variables $cardnumber = $_POST['cardnumber']; $holdersname = $_POST['holdersname']; $expirydate = $_POST['expirydate']; // Card Check Function function LuhnCheck($cardnumber) { $sum = 0; $alt = false; for($i = strlen($cardnumber) - 1; $i >= 0; $i--) { if($alt) { $temp = $cardnumber[$i]; $temp *= 2; $cardnumber[$i] = ($temp > 9) ? $temp = $temp - 9 : $temp; } $sum += $cardnumber[$i]; $alt = !$alt; } return $sum % 10 == 0; } // Check if works if (!empty($cardnumber)) { if (LuhnCheck($cardnumber)) { header("location: confirmation.php"); } else { echo '<font color="red">Error, wrong card details!</font>'; } } ?> Any help please. Hi All, I am trying to use headers at the end of functions to put the user where they need to be. header("location: register.php?user_may_exist"); I understand how they work and their qwuirks. My issue is, in my head file, i am outputting which causes issues for the headers which come after. I have the following in head.php <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title> <?php if(isset($currentPageTitle)){ echo $currentPageTitle; }else{ echo 'Cricket Club'; }; ?> </title> <?php if(isset($currentPageMeta)){ echo "<meta name='description' content='$currentPageMeta'>"; }else{ echo "<meta name='description' content='All the latest from CC'>"; }; ?> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> Is there a better way for me to achieve this? Just a quick question. I'm using the Live HTTP Headers add-on for Firefox that display all the HTTP headers etc. I'm writing an article on it and want to include a screenshot of it in action. Are there any headers that I should hide from the reader for security reasons? Thanks for any help. I'm adding a login page to my website. When I go to the login page, and try to login, I keep getting the error "Warning: Cannot modify header information - headers already sent by (output started at C:\Users\me\Desktop\xampp\htdocs\site\login.php:7) in C:\Users\me\Desktop\xampp\htdocs\site\login.php on line 38" and I don't know why. I've looked into it, and from what I can tell its something to do with white spaces, but I cant find them. <?php include "./dbconnect.php"; ?> <?php forum_connect(); ?> <?php if(isset($_COOKIE['ID_forum'])) { $username = $_COOKIE['ID_forum']; $pass = $_COOKIE['Key_forum']; $check = mysql_query("SELECT * FROM users WHERE username = '$username'")or die(mysql_error()); while($info = mysql_fetch_array( $check )) { if ($pass != $info['password']) { } else { header("Location: main.php"); } } } if (isset($_POST['submit'])) { if(!$_POST['username'] | !$_POST['pass']) { die(' <h2> You did not fill in all of the fields</h2> <p<a href="login.php">Return to login page</a> '); } if (!get_magic_quotes_gpc()) { $_POST['email'] = addslashes($_POST['email']); } $check = mysql_query("SELECT * FROM users WHERE username = '".$_POST['username']."'")or die(mysql_error()); $check2 = mysql_num_rows($check); if ($check2 == 0) { die(' <h2> That user does not exist in our database.<br/> </h2> <p<a href="login.php">Return to login page</a> '); } while($info = mysql_fetch_array( $check )) { $_POST['pass'] = stripslashes($_POST['pass']); $info['password'] = stripslashes($info['password']); $_POST['pass'] = md5($_POST['pass']); if ($_POST['pass'] != $info['password']) { die(' <h2> Incorrect password, please try again</h2> <p<a href="login.php">Return to login page</a> '); } else { $_POST['username'] = stripslashes($_POST['username']); $hour = time() + 3600; setcookie(ID_forum, $_POST['username'], $hour); setcookie(Key_forum, $_POST['pass'], $hour); header("Location: main.php"); } } } else { ?> <form action="<?php echo $_SERVER['PHP_SELF']?>" method="post"> <table border="0"> <tr><td colspan=2><h1>Login</h1></td></tr> <tr><td><h2>Username:</h2></td><td> <input type="text" name="username" maxlength="40"> </td></tr> <tr><td><h2>Password:</h2></td><td> <input type="password" name="pass" maxlength="50"> </h2> </td></tr> <tr><td colspan="2" align="right"> <input type="submit" name="submit" value="Login"> </td></tr> </table> </form> <?php } ?> Any help would be great Thanks Hi ! I am currently trying to develop a PHP application in which my server downloads a file and the user can do the same almost simultaneously. I already think about the problem "If the user downloads fastly than the server...", but it's not a problem at this moment. To do so, I used the header and readfile functions of php. Here is my code : Code: [Select] header('Content-Type: application/octet-stream'); header('Content-Disposition: attachment; filename="'.$data['name'].'";'); header('Content-Transfer-Encoding: binary'); header('Content-Length: '.$data['size']); readfile($remoteFile); I must to use the Content-length header to set the proper size of the file and not the size that is downloaded when the user clicks on the link. However, after some seconds or minutes, download is stopped and I need to restart... If you think about a solution, even if it didn't use the header(); function, please tell me. Thank you in advance... |