Headers already sent out?

OriginalBoy · October 6, 2008

I receive this error when I submit a form


Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php:2) in /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php on line 4

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php:2) in /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php on line 7

Warning: Cannot modify header information - headers already sent by (output started at /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php:2) in /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php on line 89

Here is the code

<?php
include("config.inc.php");
session_start();
session_destroy();
include("functions.inc.php");
session_start();
$_SESSION['username'] = $_POST['username'];
$_SESSION['email'] = $_POST['email'];
$fname = clean_data($_POST['fname']);
$lname = clean_data($_POST['lname']);
$email = clean_data($_POST['email']);
$email2 = clean_data($_POST['confirmemail']);
$sq = clean_data($_POST['security']);
$sa = clean_data($_POST['security_answer']);
$work = clean_data($_POST['pwork']);
$website = clean_data($_POST['website']);
$skills1 = clean_data($_POST['skills1']);
$skills2 = clean_data($_POST['skills2']);
$skills3 = clean_data($_POST['skills3']);
$skills4 = clean_data($_POST['skills4']);
$skills5 = clean_data($_POST['skills5']);


/* data that is not checked */
$bname = clean_data($_POST['bname']);
$country = clean_data($_POST['country']);
$other = clean_data($_POST['otherskills']);
/* END data that is not checked */


$_SESSION['fname'] = $fname;
$_SESSION['lname'] = $lname;
$_SESSION['email'] = $email;
$_SESSION['secq'] = $sq;
$_SESSION['seca'] = $sa;
$_SESSION['skill'] = $skill;
$_SESSION['website'] = $website;
$_SESSION['other'] = $other;
$skill_count = 0;
if (isset($skills1) && $skills1 != ""){
$skill_count++;
}
if (isset($skills2) && $skills2 != ""){
$skill_count++;
}
if (isset($skills3) && $skills3 != ""){
$skill_count++;
}
if (isset($skills4) && $skills4 != ""){
$skill_count++;
}
if (isset($skills5) && $skills5 != ""){
$skill_count++;
}
if ($skill_count < 1){
$_SESSION['error_skill'] = true;
$_SESSION['error'] = true;
}
if (!strstr($email, "@") || !strstr($email, ".") || $email == "" || $email != $email2){
$_SESSION['error_email'] = true;
$_SESSION['error'] = true;
}
if (!(isset($fname)) || $fname == ""){
$_SESSION['error_firstname'] = true;
$_SESSION['error'] = true;
}
if (!(isset($lname)) || $lname == ""){
$_SESSION['error_lastname'] = true;
$_SESSION['error'] = true;
}
if (!(isset($sq)) || $sq == ""){
$_SESSION['error_secretq'] = true;
$_SESSION['error'] = true;
}
if (!(isset($sa)) || $sa == ""){
$_SESSION['error_secreta'] = true;
$_SESSION['error'] = true;
}
if (!(isset($skill)) || $skill == ""){
$_SESSION['error_skill'] = true;
$_SESSION['error'] = true;
}
if (!(isset($work)) || $work == ""){
$_SESSION['error_work'] = true;
$_SESSION['error'] = true;
}
if (isset($_SESSION['error']) && $_SESSION['error'] == true){
header("location:./?page=register&error=true");
}
else{
$password = encrypt($password1);
$sql = "INSERT INTO `developers` VALUES('','$fname', '$lname', '$email', '$passowrd1', '$secruity_question', '$security_answer', '$country', '$typeofskills', '$previous_work', '$image', '$website', '$company_name', '0','0');";
mysql_query($sql);
$to = $_POST['email'];
$from = "'Developers Match'<[email protected]>";
$subject = "Validate your E-Mail Address";
$sql = "SELECT * FROM `developers` WHERE `email`='$email';";
$result = mysql_query($sql);
$row = mysql_fetch_assoc($result);
$id = $row['id'];
$key = md5(date("M-d-Y H:i:s").date("r")."fsdwe89@s".$id.$username.$email);
$sql = "INSERT INTO `verify` VALUES('$id', '$key');";
mysql_query($sql);
$message = "Thank you for regestring with Developers Match.\n\r
Please copy the link below, and paste it in your browser window:\r\n
{$main_site_url}validate.php?id=$id&key=$key\r\n
If you are unable to use this method to validate your account, you can go to\r\n
 {$main_site_url}?page=validator\r\n
 and enter the following key to activate your account:\r\n
 $key\r\n
 Thank you for registering,\r\n\r\n\r\n
 DevelopersMatch.com";
$headers = "From: $from\r\n";
mail($to, $subject, $message, $headers) or die("ERROR!");
header("location:./?page=register&register=success");
}

?>

DarkWater · October 6, 2008

Did you even read your code? You call session_start(), then immediately you call session_destroy(), then you call session_start() yet again.

trecool999 · October 6, 2008

Why are you starting a session, then destroying it and starting it again? Why not just use session_unset?

genericnumber1 · October 6, 2008

do you have any line breaks above the <?php in the file?

and as he said, your code is.. messy

OriginalBoy · October 6, 2008

I got it made for me by a friend I don't know anything about sessions

DarkWater · October 6, 2008

It appears that your friend doesn't either.

OriginalBoy · October 6, 2008

He does he just did it in a rush or maybe I put it together wrong....

Can someone help me fix this?

DarkWater · October 6, 2008

He does he just did it in a rush or maybe I put it together wrong....

Can someone help me fix this?

We already told you. Remove every session_* function in there, and just put ONE session_start() ABOVE the first include.

OriginalBoy · October 6, 2008

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php:2) in /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php on line 4

Warning: Cannot modify header information - headers already sent by (output started at /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php:2) in /home1/jonsjava/public_html/developersmatch/developersmatch/p_developer.php on line 87

I get that error :'(

DarkWater · October 6, 2008

Can I see your new code? That second error will go away when the first one's fixed, btw.

OriginalBoy · October 6, 2008

<?php
include("config.inc.php");
session_start();
include("functions.inc.php");
$_SESSION['username'] = $_POST['username'];
$_SESSION['email'] = $_POST['email'];
$fname = clean_data($_POST['fname']);
$lname = clean_data($_POST['lname']);
$email = clean_data($_POST['email']);
$email2 = clean_data($_POST['confirmemail']);
$sq = clean_data($_POST['security']);
$sa = clean_data($_POST['security_answer']);
$work = clean_data($_POST['pwork']);
$website = clean_data($_POST['website']);
$skills1 = clean_data($_POST['skills1']);
$skills2 = clean_data($_POST['skills2']);
$skills3 = clean_data($_POST['skills3']);
$skills4 = clean_data($_POST['skills4']);
$skills5 = clean_data($_POST['skills5']);


/* data that is not checked */
$bname = clean_data($_POST['bname']);
$country = clean_data($_POST['country']);
$other = clean_data($_POST['otherskills']);
/* END data that is not checked */


$_SESSION['fname'] = $fname;
$_SESSION['lname'] = $lname;
$_SESSION['email'] = $email;
$_SESSION['secq'] = $sq;
$_SESSION['seca'] = $sa;
$_SESSION['skill'] = $skill;
$_SESSION['website'] = $website;
$_SESSION['other'] = $other;
$skill_count = 0;
if (isset($skills1) && $skills1 != ""){
$skill_count++;
}
if (isset($skills2) && $skills2 != ""){
$skill_count++;
}
if (isset($skills3) && $skills3 != ""){
$skill_count++;
}
if (isset($skills4) && $skills4 != ""){
$skill_count++;
}
if (isset($skills5) && $skills5 != ""){
$skill_count++;
}
if ($skill_count < 1){
$_SESSION['error_skill'] = true;
$_SESSION['error'] = true;
}
if (!strstr($email, "@") || !strstr($email, ".") || $email == "" || $email != $email2){
$_SESSION['error_email'] = true;
$_SESSION['error'] = true;
}
if (!(isset($fname)) || $fname == ""){
$_SESSION['error_firstname'] = true;
$_SESSION['error'] = true;
}
if (!(isset($lname)) || $lname == ""){
$_SESSION['error_lastname'] = true;
$_SESSION['error'] = true;
}
if (!(isset($sq)) || $sq == ""){
$_SESSION['error_secretq'] = true;
$_SESSION['error'] = true;
}
if (!(isset($sa)) || $sa == ""){
$_SESSION['error_secreta'] = true;
$_SESSION['error'] = true;
}
if (!(isset($skill)) || $skill == ""){
$_SESSION['error_skill'] = true;
$_SESSION['error'] = true;
}
if (!(isset($work)) || $work == ""){
$_SESSION['error_work'] = true;
$_SESSION['error'] = true;
}
if (isset($_SESSION['error']) && $_SESSION['error'] == true){
header("location:./?page=register&error=true");
}
else{
$password = encrypt($password1);
$sql = "INSERT INTO `developers` VALUES('','$fname', '$lname', '$email', '$passowrd1', '$secruity_question', '$security_answer', '$country', '$typeofskills', '$previous_work', '$image', '$website', '$company_name', '0','0');";
mysql_query($sql);
$to = $_POST['email'];
$from = "'Developers Match'<[email protected]>";
$subject = "Validate your E-Mail Address";
$sql = "SELECT * FROM `developers` WHERE `email`='$email';";
$result = mysql_query($sql);
$row = mysql_fetch_assoc($result);
$id = $row['id'];
$key = md5(date("M-d-Y H:i:s").date("r")."fsdwe89@s".$id.$username.$email);
$sql = "INSERT INTO `verify` VALUES('$id', '$key');";
mysql_query($sql);
$message = "Thank you for regestring with Developers Match.\n\r
Please copy the link below, and paste it in your browser window:\r\n
{$main_site_url}validate.php?id=$id&key=$key\r\n
If you are unable to use this method to validate your account, you can go to\r\n
 {$main_site_url}?page=validator\r\n
 and enter the following key to activate your account:\r\n
 $key\r\n
 Thank you for registering,\r\n\r\n\r\n
 DevelopersMatch.com";
$headers = "From: $from\r\n";
mail($to, $subject, $message, $headers) or die("ERROR!");
header("location:./?page=register&register=success");
}

?>

DarkWater · October 6, 2008

functions.inc.php might be trying to start a session. Can I please see the contents of functions.inc.php?

OriginalBoy · October 6, 2008

<?php
function encrypt($data){
$enc_data = md5($data."X5ouZtsKES7h");
return $enc_data;
}
function clean_data($data){
$data = mysql_real_escape_string($data);
$data = strip_tags($data);
return $data;
}

function userLevel(){
return $_SESSION['user_level'];
}
function box2(){
if (login(true, false, false)){
	print "<a href='?page=logout'>Logout</a>";
	if(isAdmin()){
		print "<a href='?page=see_all_users'>View All Developers</a>";;
	}
}
else{
	/* Login box */
	print "<a href='?page=login'>Login</a>";
	echo<<<END


END;
}
}
function login($check_login=false, $username=false, $password=false){
if ($username != false && $password != false && $check_login != true){
	$sql = "SELECT * FROM `developers` WHERE `email`='$username' AND `password`='$password' AND `valid`=1;";
	$result = mysql_query($sql);
	$total_found = mysql_num_rows($result);
	if ($total_found < 1){
		return false;
	}
	else{
		$row = mysql_fetch_assoc($result);
		$_SESSION['username'] = $row['email'];
		$_SESSION['user_level'] = $row['user_level'];
		$_SESSION['user_id'] = $row['id'];
		$_SESSION['is_valid'] = true;
		return true;
	}
}
elseif ($check_login == true && $_SESSION['is_valid'] == true && isset($_SESSION['username'])){
	return true;
}
else{
	return false;
}
}

function logout(){
session_unset();
session_destroy();
header("location:?");
exit();
}

function getTopSites($limit){
$sql = "SELECT * FROM `developers` ORDER BY `id` DESC LIMIT $limit";
$result = mysql_query($sql);
while ($row = mysql_fetch_assoc($result)){
	$site_image = $row['image'];
	$site_url = $row['website'];
	$site_title = $row['company_name'];
	$id = $row['id'];
	$owner_id = $row['owner_id'];
	$count_comments = countComments($id);
	print "<p><a href='./?page=site_info&id=$id'><p>$site_title </a>    $count_comments Comments(<a href='./?page=comment&id=$id'>Add</a>)</p></p>";
}
}


function viewSelectedSite($id, $new_tab=true){
$sql = "SELECT * FROM `developers` WHERE `id`='$id' LIMIT 1;";

}
function countComments($id){
$sql = "SELECT * FROM `comments` WHERE `site_id`='$id' ORDER BY `id` DESC;";
$result = mysql_query($sql);
$number = mysql_num_rows($result);
return $number;
}

function getSelectedSiteComments($id){
$sql = "SELECT * FROM `comments` WHERE `site_id`='$id' ORDER BY `id` DESC;";
$result = mysql_query($sql);
while ($row = mysql_fetch_assoc($result)){
	$name = $row['name'];
	$datetime = $row['datetime'];
	$subject = $row['subject'];
	$message = $row['comment'];
	$message = str_replace("\\", "", $message);
	$subject = str_replace("\\", "", $subject);
	if ($url != ""){
		$name_url = "<a href='$url' target='_blank'>$name</a>";
	}
	else{
		$name_url = $name;
	}
	$comment = $row['comment'];
	echo<<<END
	<table border="0" width="100%">
<tr>
	<td><h3>$name_url</h3></td>
	<td align="right">$datetime</td>
</tr>
</table>
<table border="0">
<tr>
	<td><h3>$subject</h3></td>
</tr>
</table>
<table border="0">
<tr>
	<td>$message</td>
</tr>
</table>
<br /><br />
<hr width='50%' size='7' align='left' noshade>
END;
}
print "<br /><br /><br /><br /><hr width='100%' size='7' align='left' noshade>";
}

function addComment($id, $name, $url, $comment){
/* We don't allow URLs in their comments */
if (strstr($comment, "a href") || strstr($comment, "img src")){
	return false;
}
else{
	$comment = strip_tags($comment);
	$sql = "INSERT INTO `comments` VALUES('','$id','$name','$email','$comment');";
	mysql_query($sql);
	return true;
}
}

function getAdvertisement($type, $limit="none"){
if (is_numeric($limit)){
	$sql = "SELECT * FROM `advertisement` WHERE `type`='$type' ORDER BY RAND() LIMIT $limit;";
}
else{
	$sql = "SELECT * FROM `advertisement` WHERE `type`='$type' ORDER BY RAND() LIMIT 1;";
}
$result = mysql_query($sql);
$number = mysql_num_rows($result) or 0;
if ($number != 0){
	$row = mysql_fetch_assoc($result) or "empty";
	$url = $row['url'];
	$img = $row['img_url'];
	$ad = "<p><a href=\"$url\" target=\"_BLANK\"><img class='addy' src=\"$img\" border=\"0\"></a></p><br />";
}
else{
	$ad = "";
}

return $ad;
}
function isAdmin(){
if ($_SESSION['user_level'] == "3"){
	return true;
}
else{
	return false;
}
}

revraz · October 6, 2008

Put session_start(); as your first line of code. Then read the error and see what it's telling you for where output was started.

revraz · October 6, 2008

Also, this code at line 87 wont work

header("location:./?page=register&register=success");

You've already sent output to the browser. Use a HTML or Javascript redirect.

DarkWater · October 6, 2008

Also, this code at line 87 wont work

header("location:./?page=register&register=success");

You've already sent output to the browser. Use a HTML or Javascript redirect.

Nah, the output is from PHP sending out the error from the session. The header() redirect should be fine after the sessions are sorted out.

jonsjava · October 7, 2008

Also, this code at line 87 wont work

header("location:./?page=register&register=success");

You've already sent output to the browser. Use a HTML or Javascript redirect.

actually, there isn't any data outputted at that point.

so, with that said:

<?php
session_start();
session_unset();
include("config.inc.php");
include("functions.inc.php");
$_SESSION['username'] = $_POST['username'];
$_SESSION['email'] = $_POST['email'];
$fname = clean_data($_POST['fname']);
$lname = clean_data($_POST['lname']);
$email = clean_data($_POST['email']);
$email2 = clean_data($_POST['confirmemail']);
$sq = clean_data($_POST['security']);
$sa = clean_data($_POST['security_answer']);
$work = clean_data($_POST['pwork']);
$website = clean_data($_POST['website']);
$skills1 = clean_data($_POST['skills1']);
$skills2 = clean_data($_POST['skills2']);
$skills3 = clean_data($_POST['skills3']);
$skills4 = clean_data($_POST['skills4']);
$skills5 = clean_data($_POST['skills5']);


/* data that is not checked */
$bname = clean_data($_POST['bname']);
$country = clean_data($_POST['country']);
$other = clean_data($_POST['otherskills']);
/* END data that is not checked */


$_SESSION['fname'] = $fname;
$_SESSION['lname'] = $lname;
$_SESSION['email'] = $email;
$_SESSION['secq'] = $sq;
$_SESSION['seca'] = $sa;
$_SESSION['skill'] = $skill;
$_SESSION['website'] = $website;
$_SESSION['other'] = $other;
$skill_count = 0;
if (isset($skills1) && $skills1 != ""){
   $skill_count++;
}
if (isset($skills2) && $skills2 != ""){
   $skill_count++;
}
if (isset($skills3) && $skills3 != ""){
   $skill_count++;
}
if (isset($skills4) && $skills4 != ""){
   $skill_count++;
}
if (isset($skills5) && $skills5 != ""){
   $skill_count++;
}
if ($skill_count < 1){
   $_SESSION['error_skill'] = true;
   $_SESSION['error'] = true;
}
if (!strstr($email, "@") || !strstr($email, ".") || $email == "" || $email != $email2){
   $_SESSION['error_email'] = true;
   $_SESSION['error'] = true;
}
if (!(isset($fname)) || $fname == ""){
   $_SESSION['error_firstname'] = true;
   $_SESSION['error'] = true;
}
if (!(isset($lname)) || $lname == ""){
   $_SESSION['error_lastname'] = true;
   $_SESSION['error'] = true;
}
if (!(isset($sq)) || $sq == ""){
   $_SESSION['error_secretq'] = true;
   $_SESSION['error'] = true;
}
if (!(isset($sa)) || $sa == ""){
   $_SESSION['error_secreta'] = true;
   $_SESSION['error'] = true;
}
if (!(isset($skill)) || $skill == ""){
   $_SESSION['error_skill'] = true;
   $_SESSION['error'] = true;
}
if (!(isset($work)) || $work == ""){
   $_SESSION['error_work'] = true;
   $_SESSION['error'] = true;
}
if (isset($_SESSION['error']) && $_SESSION['error'] == true){
   header("location:./?page=register&error=true");
}
else{
   $password = encrypt($password1);
   $sql = "INSERT INTO `developers` VALUES('','$fname', '$lname', '$email', '$passowrd1', '$secruity_question', '$security_answer', '$country', '$typeofskills', '$previous_work', '$image', '$website', '$company_name', '0','0');";
   mysql_query($sql);
   $to = $_POST['email'];
   $from = "'Developers Match'<[email protected]>";
   $subject = "Validate your E-Mail Address";
   $sql = "SELECT * FROM `developers` WHERE `email`='$email';";
   $result = mysql_query($sql);
   $row = mysql_fetch_assoc($result);
   $id = $row['id'];
   $key = md5(date("M-d-Y H:i:s").date("r")."fsdwe89@s".$id.$username.$email);
   $sql = "INSERT INTO `verify` VALUES('$id', '$key');";
   mysql_query($sql);
   $message = "Thank you for regestring with Developers Match.\n\r
   Please copy the link below, and paste it in your browser window:\r\n
   {$main_site_url}validate.php?id=$id&key=$key\r\n
   If you are unable to use this method to validate your account, you can go to\r\n
    {$main_site_url}?page=validator\r\n
    and enter the following key to activate your account:\r\n
    $key\r\n
    Thank you for registering,\r\n\r\n\r\n
    DevelopersMatch.com";
   $headers = "From: $from\r\n";
   mail($to, $subject, $message, $headers) or die("ERROR!");
   header("location:./?page=register&register=success");
}

?>

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