need help with Cannot modify header information - headers already sent error
04-08-2008, 09:24 AM
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need help with Cannot modify header information - headers already sent error
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Posts: 23
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i keep getting Warning: Cannot modify header information - headers already sent by (output started at /home/runningp/public_html/members/index.php:8) in /home/runningp/public_html/functions.php on line 57
and i have tried everything
ok im as stuck as anything here i have tryed moveing my bits around with no such luck... so in 1 last effort that sum 1 will be able to help i will post all the code and you might be able to see why its so hard to do 
ok so first is my index.php
PHP Code:
<?php
ini_set('error_reporting', E_ALL);
session_start();
require_once '../settings.php';
$id = $_SESSION['user_id'];
include ("../header.php");
?>
<style type="text/css">
<!--
body {
margin-left: 1px;
margin-top: 1px;
margin-right: 1px;
margin-bottom: 1px;
}
-->
</style>
<table colspan='0' width="100%" cellpadding="0" bgcolor="#FFFFFF">
<tr>
<td width="13%" height="505" align="center" valign="top"><table width="100%" height="505" align="center" bgcolor="#D6E0E0">
<tr>
<td height="58" colspan="2" align="center" valign="top" bgcolor="#D6E0E0"><p>Menu</p>
<p><? if($id == 1){ echo "<a href=\"admin/index.php\">Admin Index</a>\n";}?></p>
</td>
</tr>
<tr>
<td height="361" colspan="2" align="center" valign="top" bgcolor="#D6E0E0"><a href="http://www.runningprofiles.com/logout.php">Logout</a>
</td>
</tr>
</table>
</td>
<td width="87%" align="left" valign="top">
<? $page = $_GET['page'];
if (ereg('[A-Za-z0-9]',$page) ) {
if (file_exists('include/'.$page.'.php')) {
include('include/'.$page.'.php');
} else {
include('include/main.php');
}
} else {
include('include/main.php');
}?>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
then i have my news.php
PHP Code:
<?php session_start();
require_once '../settings.php';
checkLogin ('1');
?>
<p>News Page</p>
basicly all i want to do is if the user is an admin they can see news page and if not the gat sent away this is done by finctions.php
PHP Code:
<?php
// ------------------------------------------------------------------------
/**
* checkLogin
*
* Applies restrictions to visitors based on membership and level access
* Also handles cookie based "remember me" feature
*
* @access public
* @param string
* @return bool TRUE/FALSE
*/
function checkLogin ( $levels )
{
session_start ();
global $db;
$kt = split ( ' ', $levels );
if ( ! $_SESSION['logged_in'] ) {
$access = FALSE;
if ( isset ( $_COOKIE['cookie_id'] ) ) {//if we have a cookie
$query = 'SELECT * FROM ' . DBPREFIX . 'users WHERE ID = ' . $db->qstr ( $_COOKIE['cookie_id'] );
if ( $db->RecordCount ( $query ) == 1 ) {//only one user can match that query
$row = $db->getRow ( $query );
//let's see if we pass the validation, no monkey business
if ( $_COOKIE['authenticate'] == md5 ( getIP () . $row->Password . $_SERVER['USER_AGENT'] ) ) {
//we set the sessions so we don't repeat this step over and over again
$_SESSION['user_id'] = $row->ID;
$_SESSION['logged_in'] = TRUE;
//now we check the level access, we might not have the permission
if ( in_array ( get_level_access ( $_SESSION['user_id'] ), $kt ) ) {
//we do?! horray!
$access = TRUE;
}
}
}
}
}
else {
$access = FALSE;
if ( in_array ( get_level_access ( $_SESSION['user_id'] ), $kt ) ) {
$access = TRUE;
}
}
if ( $access == FALSE ) {
header('Location: http://www.runningprofiles.com/members/error.php');
}
}
// ------------------------------------------------------------------------
/**
* get_level_access
*
* Returns the level access of a given user
*
* @param string
* @access public
* @return string
*/
function get_level_access ( $user_id )
{
global $db;
$row = $db->getRow ( 'SELECT Level_access FROM ' . DBPREFIX . 'users WHERE ID = ' . $db->qstr ( $user_id ) );
return $row->Level_access;
}
// ------------------------------------------------------------------------
/**
* logout
*
* Handles logouts
*
* @param none
* @access public
*/
function logout ()
{
//session must be started before anything
session_start ();
//if we have a valid session
if ( $_SESSION['logged_in'] == TRUE )
{
//unset the sessions (all of them - array given)
unset ( $_SESSION );
//destroy what's left
session_destroy ();
}
//It is safest to set the cookies with a date that has already expired.
if ( isset ( $_COOKIE['cookie_id'] ) && isset ( $_COOKIE['authenticate'] ) ) {
/**
* uncomment the following line if you wish to remove all cookies
* (don't forget to comment ore delete the following 2 lines if you decide to use clear_cookies)
*/
//clear_cookies ();
setcookie ( "cookie_id", '', time() - KEEP_LOGGED_IN_FOR, COOKIE_PATH );
setcookie ( "authenticate", '', time() - KEEP_LOGGED_IN_FOR, COOKIE_PATH );
}
//redirect the user to the default "logout" page
header ( "Location: " . REDIRECT_ON_LOGOUT );
}
// ------------------------------------------------------------------------
/**
* clear_cookies
*
* Clears the cookies
* Not used by default but present if needed
*
* @param none
* @access public
*/
function clear_cookies ()
{
// unset cookies
if ( isset( $_SERVER['HTTP_COOKIE'] ) ) {
$cookies = explode ( ';', $_SERVER['HTTP_COOKIE'] );
//loop through the array of cookies and set them in the past
foreach ( $cookies as $cookie ) {
$parts = explode ( '=', $cookie );
$name = trim ( $parts [ 0 ] );
setcookie ( $name, '', time() - KEEP_LOGGED_IN_FOR );
setcookie ( $name, '', time() - KEEP_LOGGED_IN_FOR, '/' );
}
}
}
// ------------------------------------------------------------------------
/**
* set_login_sessions - sets the login sessions
*
* @access public
* @param string
* @return none
*/
function set_login_sessions ( $user_id, $password, $remember )
{
//start the session
//set the sessions
$_SESSION['user_id'] = $user_id;
$_SESSION['logged_in'] = TRUE;
//do we have "remember me"?
if ( $remember ) {
setcookie ( "cookie_id", $user_id, time() + KEEP_LOGGED_IN_FOR, COOKIE_PATH );
setcookie ( "authenticate", md5 ( getIP () . $password . $_SERVER['USER_AGENT'] ), time() + KEEP_LOGGED_IN_FOR, COOKIE_PATH );
}
}
// ------------------------------------------------------------------------
/**
* Validate if email
*
* Determines if the passed param is a valid email
*
* @access public
* @param string
* @return bool
*/
function valid_email ( $str )
{
return ( ! preg_match ( "/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $str ) ) ? FALSE : TRUE;
}
// ------------------------------------------------------------------------
/**
* Check unique
*
* Performs a check to determine if one parameter is unique in the database
*
* @access public
* @param string
* @param string
* @return bool
*/
function checkUnique ( $field, $compared )
{
global $db;
$query = $db->getRow ( "SELECT COUNT(*) as total FROM `" . DBPREFIX . "users` WHERE " . $field . " = " . $db->qstr ( $compared ) );
if ( $query->total == 0 ) {
return TRUE;
}
else {
return FALSE;
}
}
// ------------------------------------------------------------------------
/**
* Validate if numeric
*
* Validates string against numeric characters
*
* @access public
* @param string
* @return bool
*/
function numeric ( $str )
{
return ( ! ereg ( "^[0-9\.]+$", $str ) ) ? FALSE : TRUE;
}
// ------------------------------------------------------------------------
/**
* Validate if alfa numeric
*
* Validates string against alpha numeric characters
*
* @access public
* @param string
* @return bool
*/
function alpha_numeric ( $str )
{
return ( ! preg_match ( "/^([-a-z0-9])+$/i", $str ) ) ? FALSE : TRUE;
}
// ------------------------------------------------------------------------
/**
* Create a Random String
*
* Useful for generating passwords or hashes.
*
* @access public
* @param string type of random string. Options: alunum, numeric, nozero, unique
* @param none
* @return string
*/
function random_string ( $type = 'alnum', $len = 8 )
{
switch ( $type )
{
case 'alnum' :
case 'numeric' :
case 'nozero' :
switch ($type)
{
case 'alnum' : $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
break;
case 'numeric' : $pool = '0123456789';
break;
case 'nozero' : $pool = '123456789';
break;
}
$str = '';
for ( $i=0; $i < $len; $i++ )
{
$str .= substr ( $pool, mt_rand ( 0, strlen ( $pool ) -1 ), 1 );
}
return $str;
break;
case 'unique' : return md5 ( uniqid ( mt_rand () ) );
break;
}
}
// ------------------------------------------------------------------------
/**
* Get username - Returns the username of the logged in member based on session ID
*
* @access public
* @param string
* @return string/bool
*/
function get_username ( $id )
{
global $db;
$query = "SELECT `Username` FROM `" . DBPREFIX . "users` WHERE `ID` = " . $db->qstr ( $id );
if ( $db->RecordCount ( $query ) == 1 )
{
$row = $db->getRow ( $query );
return $row->Username;
}
else {
return FALSE;
}
}
// ------------------------------------------------------------------------
/**
* Get id - Returns the username of the logged in member based on session ID
*
* @access public
* @param string
* @return string/bool
*/
function get_id ( $id )
{
global $db;
$query = "SELECT `ID` FROM `" . DBPREFIX . "users` WHERE `ID` = " . $db->qstr ( $id );
if ( $db->RecordCount ( $query ) == 1 )
{
$row = $db->getRow ( $query );
return $row->ID;
}
else {
return FALSE;
}
}
/**
* Get email- Returns the email of the logged in member based on session ID
*
* @access public
* @param string
* @return string/bool
*/
function get_email ( $id )
{
global $db;
$query = "SELECT `Email` FROM `" . DBPREFIX . "users` WHERE `ID` = " . $db->qstr ( $id );
if ( $db->RecordCount ( $query ) == 1 )
{
$row = $db->getRow ( $query );
return $row->Email;
}
else {
return FALSE;
}
}
// ------------------------------------------------------------------------
/**
* Is admin - Determines if the logged in member is an admin
*
* @access public
* @param string
* @return bool
*/
function isadmin ( $id )
{
global $db;
$query = "SELECT `Level_access` FROM `" . DBPREFIX . "users` WHERE `ID` = " . $db->qstr ( $id );
if ( $db->RecordCount ( $query ) == 1 )
{
$row = $db->getRow ( $query );
if ( $row->Level_access == 1 )
{
return TRUE;
}
else {
return FALSE;
}
}
else {
return FALSE;
}
}
// ------------------------------------------------------------------------
/**
* html2txt - converts html to text
*
* @access public
* @param string
* @return string
*/
function html2txt ( $document )
{
$search = array("'<script[^>]*?>.*?</script>'si", // strip out javascript
"'<[\/\!]*?[^<>]*?>'si", // strip out html tags
"'([\r\n])[\s]+'", // strip out white space
"'@<![\s\S]*?–[ \t\n\r]*>@'",
"'&(quot|#34|#034|#x22);'i", // replace html entities
"'&(amp|#38|#038|#x26);'i", // added hexadecimal values
"'&(lt|#60|#060|#x3c);'i",
"'&(gt|#62|#062|#x3e);'i",
"'&(nbsp|#160|#xa0);'i",
"'&(iexcl|#161);'i",
"'&(cent|#162);'i",
"'&(pound|#163);'i",
"'&(copy|#169);'i",
"'&(reg|#174);'i",
"'&(deg|#176);'i",
"'&(#39|#039|#x27);'",
"'&(euro|#8364);'i", // europe
"'&a(uml|UML);'", // german
"'&o(uml|UML);'",
"'&u(uml|UML);'",
"'&A(uml|UML);'",
"'&O(uml|UML);'",
"'&U(uml|UML);'",
"'ß'i",
);
$replace = array( "",
"",
" ",
"\"",
"&",
"<",
">",
" ",
chr(161),
chr(162),
chr(163),
chr(169),
chr(174),
chr(176),
chr(39),
chr(128),
"ä",
"ö",
"ü",
"Ä",
"Ö",
"Ü",
"ß",
);
$text = preg_replace($search,$replace,$document);
return trim ( $text );
}
// ------------------------------------------------------------------------
/**
* send_email - Handles all emailing from one place
*
* @access public
* @param string
* @return bool TRUE/FALSE
*/
function send_email ( $subject, $to, $body )
{
require ( BASE_PATH . "/lib/phpmailer/class.phpmailer.php" );
$mail = new PHPMailer();
//do we use SMTP?
if ( USE_SMTP ) {
$mail->IsSMTP();
$mail->SMTPAuth = true;
$mail->Host = SMTP_HOST;
$mail->Port = SMTP_PORT;
$mail->Password = SMTP_PASS;
$mail->Username = SMTP_USER;
}
$mail->From = ADMIN_EMAIL;
$mail->FromName = DOMAIN_NAME;
$mail->AddAddress( $to );
$mail->AddReplyTo ( ADMIN_EMAIL, DOMAIN_NAME );
$mail->Subject = $subject;
$mail->Body = $body;
$mail->WordWrap = 100;
$mail->IsHTML ( MAIL_IS_HTML );
$mail->AltBody = html2txt ( $body );
if ( ! $mail->Send() ) {
if ( RUN_ON_DEVELOPMENT ) {
echo $mail->ErrorInfo;//spit that bug out :P
}
return FALSE;
}
else {
return TRUE;
}
}
/**
* ip_first - let's get a clean ip
*
* @access public
* @param string
* @return string
*/
function ip_first ( $ips )
{
if ( ( $pos = strpos ( $ips, ',' ) ) != false ) {
return substr ( $ips, 0, $pos );
}
else {
return $ips;
}
}
/**
* ip_valid - will try to determine if a given ip is valid or not
*
* @access public
* @param string
* @return bool
*/
function ip_valid ( $ips )
{
if ( isset( $ips ) ) {
$ip = ip_first ( $ips );
$ipnum = ip2long ( $ip );
if ( $ipnum !== -1 && $ipnum !== false && ( long2ip ( $ipnum ) === $ip ) ) {
if ( ( $ipnum < 167772160 || $ipnum > 184549375 ) && // Not in 10.0.0.0/8
( $ipnum < - 1408237568 || $ipnum > - 1407188993 ) && // Not in 172.16.0.0/12
( $ipnum < - 1062731776 || $ipnum > - 1062666241 ) ) // Not in 192.168.0.0/16
return true;
}
}
return false;
}
/**
* getIP - returns the IP of the visitor
*
* @access public
* @param none
* @return string
*/
function getIP ()
{
$check = array(
'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_FORWARDED_FOR',
'HTTP_FORWARDED', 'HTTP_VIA', 'HTTP_X_COMING_FROM', 'HTTP_COMING_FROM',
'HTTP_CLIENT_IP'
);
foreach ( $check as $c ) {
if ( ip_valid ( &$_SERVER [ $c ] ) ) {
return ip_first ( $_SERVER [ $c ] );
}
}
return $_SERVER['REMOTE_ADDR'];
}
/**
* sanitize - a real sanitizer
*
* @access public
* @param none
* @return string
*/
function sanitize ( $var, $santype = 3 )
{
if ( $santype == 1 ) {
return strip_tags ( $var );
}
if ( $santype == 2 ) {
return htmlentities ( strip_tags ( $var ), ENT_QUOTES, 'UTF-8' );
}
if ( $santype == 3 ) {
if ( ! get_magic_quotes_gpc () ) {
return addslashes ( htmlentities ( strip_tags ( $var ), ENT_QUOTES, 'UTF-8' ) );
}
else {
return htmlentities ( strip_tags ( $var ), ENT_QUOTES, 'UTF-8' );
}
}
}
?>
and also header with is coming up alot in my errors is only [code]<title>Home - RunningProfiles</title>
<style type="text/css">
<!--
.style1 {
font-size: 110px;
font-family: Chiller;
color: 0000000;
font-style: italic;
font-weight: bold;
}
-->
</style>
<table width="100%" height="120">
<tr>
<td bordercolor="#000000" bgcolor="99b3b4"><table width="100%">
<tr>
<td width="10%"> </td>
<td width="80%"><div align="center" class="style1">Running Profiles</div></td>
<td width="10%"> </td>
</tr>
</table></td>
</tr>
</table> [/php]
so i want my news.php to show up if admin opens it in here
PHP Code:
<?php session_start();
require_once '../settings.php';
checkLogin ('1');
?>
but i get the error Warning: Cannot modify header information - headers already sent by (output started at /home/runningp/public_html/members/index.php:8) in /home/runningp/public_html/functions.php on line 57 |
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04-08-2008, 10:12 AM
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Re: need help with Cannot modify header information - headers already sent error
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Posts: 843
Name: Mike
Location: United Kingdom
|
Looks to me like you keep starting sessions (session_start()  , just doing at the top of the main file and you will be fine. Or change that code to:
PHP Code:
<?php
if(@session_start()){ // See if it can start sessions.
// If it can do nothing
} else {
// It's already started, do nothing.
}
** Edit **
Looking at it again, you have already sent html. Looks like you need an output buffer, change your index.php code to:
PHP Code:
<?php
ini_set('error_reporting', E_ALL);
ob_start();
session_start();
require_once '../settings.php';
$id = $_SESSION['user_id'];
include ("../header.php");
?>
<style type="text/css">
<!--
body {
margin-left: 1px;
margin-top: 1px;
margin-right: 1px;
margin-bottom: 1px;
}
-->
</style>
<table colspan='0' width="100%" cellpadding="0" bgcolor="#FFFFFF">
<tr>
<td width="13%" height="505" align="center" valign="top"><table width="100%" height="505" align="center" bgcolor="#D6E0E0">
<tr>
<td height="58" colspan="2" align="center" valign="top" bgcolor="#D6E0E0"><p>Menu</p>
<p><? if($id == 1){ echo "<a href=\"admin/index.php\">Admin Index</a>\n";}?></p>
</td>
</tr>
<tr>
<td height="361" colspan="2" align="center" valign="top" bgcolor="#D6E0E0"><a href="http://www.runningprofiles.com/logout.php">Logout</a>
</td>
</tr>
</table>
</td>
<td width="87%" align="left" valign="top">
<? $page = $_GET['page'];
if (ereg('[A-Za-z0-9]',$page) ) {
if (file_exists('include/'.$page.'.php')) {
include('include/'.$page.'.php');
} else {
include('include/main.php');
}
} else {
include('include/main.php');
}?>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
<?php
ob_end_flush();
?>
finctions.php - I put a comment where the error was occurring.
PHP Code:
<?php
// ------------------------------------------------------------------------
/**
* checkLogin
*
* Applies restrictions to visitors based on membership and level access
* Also handles cookie based "remember me" feature
*
* @access public
* @param string
* @return bool TRUE/FALSE
*/
function checkLogin ( $levels )
{
session_start ();
global $db;
$kt = split ( ' ', $levels );
if ( ! $_SESSION['logged_in'] ) {
$access = FALSE;
if ( isset ( $_COOKIE['cookie_id'] ) ) {//if we have a cookie
$query = 'SELECT * FROM ' . DBPREFIX . 'users WHERE ID = ' . $db->qstr ( $_COOKIE['cookie_id'] );
if ( $db->RecordCount ( $query ) == 1 ) {//only one user can match that query
$row = $db->getRow ( $query );
//let's see if we pass the validation, no monkey business
if ( $_COOKIE['authenticate'] == md5 ( getIP () . $row->Password . $_SERVER['USER_AGENT'] ) ) {
//we set the sessions so we don't repeat this step over and over again
$_SESSION['user_id'] = $row->ID;
$_SESSION['logged_in'] = TRUE;
//now we check the level access, we might not have the permission
if ( in_array ( get_level_access ( $_SESSION['user_id'] ), $kt ) ) {
//we do?! horray!
$access = TRUE;
}
}
}
}
}
else {
$access = FALSE;
if ( in_array ( get_level_access ( $_SESSION['user_id'] ), $kt ) ) {
$access = TRUE;
}
}
if ( $access == FALSE ) {
header('Location: http://www.runningprofiles.com/members/error.php'); // Here is where your error is.
}
}
// ------------------------------------------------------------------------
/**
* get_level_access
*
* Returns the level access of a given user
*
* @param string
* @access public
* @return string
*/
function get_level_access ( $user_id )
{
global $db;
$row = $db->getRow ( 'SELECT Level_access FROM ' . DBPREFIX . 'users WHERE ID = ' . $db->qstr ( $user_id ) );
return $row->Level_access;
}
// ------------------------------------------------------------------------
/**
* logout
*
* Handles logouts
*
* @param none
* @access public
*/
function logout ()
{
//session must be started before anything
/*session_start ();*/
//if we have a valid session
if ( $_SESSION['logged_in'] == TRUE )
{
//unset the sessions (all of them - array given)
unset ( $_SESSION );
//destroy what's left
session_destroy ();
}
//It is safest to set the cookies with a date that has already expired.
if ( isset ( $_COOKIE['cookie_id'] ) && isset ( $_COOKIE['authenticate'] ) ) {
/**
* uncomment the following line if you wish to remove all cookies
* (don't forget to comment ore delete the following 2 lines if you decide to use clear_cookies)
*/
//clear_cookies ();
setcookie ( "cookie_id", '', time() - KEEP_LOGGED_IN_FOR, COOKIE_PATH );
setcookie ( "authenticate", '', time() - KEEP_LOGGED_IN_FOR, COOKIE_PATH );
}
//redirect the user to the default "logout" page
header ( "Location: " . REDIRECT_ON_LOGOUT ); // This is where you error is.
}
// ------------------------------------------------------------------------
/**
* clear_cookies
*
* Clears the cookies
* Not used by default but present if needed
*
* @param none
* @access public
*/
function clear_cookies ()
{
// unset cookies
if ( isset( $_SERVER['HTTP_COOKIE'] ) ) {
$cookies = explode ( ';', $_SERVER['HTTP_COOKIE'] );
//loop through the array of cookies and set them in the past
foreach ( $cookies as $cookie ) {
$parts = explode ( '=', $cookie );
$name = trim ( $parts [ 0 ] );
setcookie ( $name, '', time() - KEEP_LOGGED_IN_FOR );
setcookie ( $name, '', time() - KEEP_LOGGED_IN_FOR, '/' );
}
}
}
// ------------------------------------------------------------------------
/**
* set_login_sessions - sets the login sessions
*
* @access public
* @param string
* @return none
*/
function set_login_sessions ( $user_id, $password, $remember )
{
//start the session
//set the sessions
$_SESSION['user_id'] = $user_id;
$_SESSION['logged_in'] = TRUE;
//do we have "remember me"?
if ( $remember ) {
setcookie ( "cookie_id", $user_id, time() + KEEP_LOGGED_IN_FOR, COOKIE_PATH );
setcookie ( "authenticate", md5 ( getIP () . $password . $_SERVER['USER_AGENT'] ), time() + KEEP_LOGGED_IN_FOR, COOKIE_PATH );
}
}
// ------------------------------------------------------------------------
/**
* Validate if email
*
* Determines if the passed param is a valid email
*
* @access public
* @param string
* @return bool
*/
function valid_email ( $str )
{
return ( ! preg_match ( "/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $str ) ) ? FALSE : TRUE;
}
// ------------------------------------------------------------------------
/**
* Check unique
*
* Performs a check to determine if one parameter is unique in the database
*
* @access public
* @param string
* @param string
* @return bool
*/
function checkUnique ( $field, $compared )
{
global $db;
$query = $db->getRow ( "SELECT COUNT(*) as total FROM `" . DBPREFIX . "users` WHERE " . $field . " = " . $db->qstr ( $compared ) );
if ( $query->total == 0 ) {
return TRUE;
}
else {
return FALSE;
}
}
// ------------------------------------------------------------------------
/**
* Validate if numeric
*
* Validates string against numeric characters
*
* @access public
* @param string
* @return bool
*/
function numeric ( $str )
{
return ( ! ereg ( "^[0-9\.]+$", $str ) ) ? FALSE : TRUE;
}
// ------------------------------------------------------------------------
/**
* Validate if alfa numeric
*
* Validates string against alpha numeric characters
*
* @access public
* @param string
* @return bool
*/
function alpha_numeric ( $str )
{
return ( ! preg_match ( "/^([-a-z0-9])+$/i", $str ) ) ? FALSE : TRUE;
}
// ------------------------------------------------------------------------
/**
* Create a Random String
*
* Useful for generating passwords or hashes.
*
* @access public
* @param string type of random string. Options: alunum, numeric, nozero, unique
* @param none
* @return string
*/
function random_string ( $type = 'alnum', $len = 8 )
{
switch ( $type )
{
case 'alnum' :
case 'numeric' :
case 'nozero' :
switch ($type)
{
case 'alnum' : $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
break;
case 'numeric' : $pool = '0123456789';
break;
case 'nozero' : $pool = '123456789';
break;
}
$str = '';
for ( $i=0; $i < $len; $i++ )
{
$str .= substr ( $pool, mt_rand ( 0, strlen ( $pool ) -1 ), 1 );
}
return $str;
break;
case 'unique' : return md5 ( uniqid ( mt_rand () ) );
break;
}
}
// ------------------------------------------------------------------------
/**
* Get username - Returns the username of the logged in member based on session ID
*
* @access public
* @param string
* @return string/bool
*/
function get_username ( $id )
{
global $db;
$query = "SELECT `Username` FROM `" . DBPREFIX . "users` WHERE `ID` = " . $db->qstr ( $id );
if ( $db->RecordCount ( $query ) == 1 )
{
$row = $db->getRow ( $query );
return $row->Username;
}
else {
return FALSE;
}
}
// ------------------------------------------------------------------------
/**
* Get id - Returns the username of the logged in member based on session ID
*
* @access public
* @param string
* @return string/bool
*/
function get_id ( $id )
{
global $db;
$query = "SELECT `ID` FROM `" . DBPREFIX . "users` WHERE `ID` = " . $db->qstr ( $id );
if ( $db->RecordCount ( $query ) == 1 )
{
$row = $db->getRow ( $query );
return $row->ID;
}
else {
return FALSE;
}
}
/**
* Get email- Returns the email of the logged in member based on session ID
*
* @access public
* @param string
* @return string/bool
*/
function get_email ( $id )
{
global $db;
$query = "SELECT `Email` FROM `" . DBPREFIX . "users` WHERE `ID` = " . $db->qstr ( $id );
if ( $db->RecordCount ( $query ) == 1 )
{
$row = $db->getRow ( $query );
return $row->Email;
}
else {
return FALSE;
}
}
// ------------------------------------------------------------------------
/**
* Is admin - Determines if the logged in member is an admin
*
* @access public
* @param string
* @return bool
*/
function isadmin ( $id )
{
global $db;
$query = "SELECT `Level_access` FROM `" . DBPREFIX . "users` WHERE `ID` = " . $db->qstr ( $id );
if ( $db->RecordCount ( $query ) == 1 )
{
$row = $db->getRow ( $query );
if ( $row->Level_access == 1 )
{
return TRUE;
}
else {
return FALSE;
}
}
else {
return FALSE;
}
}
// ------------------------------------------------------------------------
/**
* html2txt - converts html to text
*
* @access public
* @param string
* @return string
*/
function html2txt ( $document )
{
$search = array("'<script[^>]*?>.*?</script>'si", // strip out javascript
"'<[\/\!]*?[^<>]*?>'si", // strip out html tags
"'([\r\n])[\s]+'", // strip out white space
"'@<![\s\S]*?–[ \t\n\r]*>@'",
"'&(quot|#34|#034|#x22);'i", // replace html entities
"'&(amp|#38|#038|#x26);'i", // added hexadecimal values
"'&(lt|#60|#060|#x3c);'i",
"'&(gt|#62|#062|#x3e);'i",
"'&(nbsp|#160|#xa0);'i",
"'&(iexcl|#161);'i",
"'&(cent|#162);'i",
"'&(pound|#163);'i",
"'&(copy|#169);'i",
"'&(reg|#174);'i",
"'&(deg|#176);'i",
"'&(#39|#039|#x27);'",
"'&(euro|#8364);'i", // europe
"'&a(uml|UML);'", // german
"'&o(uml|UML);'",
"'&u(uml|UML);'",
"'&A(uml|UML);'",
"'&O(uml|UML);'",
"'&U(uml|UML);'",
"'ß'i",
);
$replace = array( "",
"",
" ",
"\"",
"&",
"<",
">",
" ",
chr(161),
chr(162),
chr(163),
chr(169),
chr(174),
chr(176),
chr(39),
chr(128),
"ä",
"ö",
"ü",
"Ä",
"Ö",
"Ü",
"ß",
);
$text = preg_replace($search,$replace,$document);
return trim ( $text );
}
// ------------------------------------------------------------------------
/**
* send_email - Handles all emailing from one place
*
* @access public
* @param string
* @return bool TRUE/FALSE
*/
function send_email ( $subject, $to, $body )
{
require ( BASE_PATH . "/lib/phpmailer/class.phpmailer.php" );
$mail = new PHPMailer();
//do we use SMTP?
if ( USE_SMTP ) {
$mail->IsSMTP();
$mail->SMTPAuth = true;
$mail->Host = SMTP_HOST;
$mail->Port = SMTP_PORT;
$mail->Password = SMTP_PASS;
$mail->Username = SMTP_USER;
}
$mail->From = ADMIN_EMAIL;
$mail->FromName = DOMAIN_NAME;
$mail->AddAddress( $to );
$mail->AddReplyTo ( ADMIN_EMAIL, DOMAIN_NAME );
$mail->Subject = $subject;
$mail->Body = $body;
$mail->WordWrap = 100;
$mail->IsHTML ( MAIL_IS_HTML );
$mail->AltBody = html2txt ( $body );
if ( ! $mail->Send() ) {
if ( RUN_ON_DEVELOPMENT ) {
echo $mail->ErrorInfo;//spit that bug out :P
}
return FALSE;
}
else {
return TRUE;
}
}
/**
* ip_first - let's get a clean ip
*
* @access public
* @param string
* @return string
*/
function ip_first ( $ips )
{
if ( ( $pos = strpos ( $ips, ',' ) ) != false ) {
return substr ( $ips, 0, $pos );
}
else {
return $ips;
}
}
/**
* ip_valid - will try to determine if a given ip is valid or not
*
* @access public
* @param string
* @return bool
*/
function ip_valid ( $ips )
{
if ( isset( $ips ) ) {
$ip = ip_first ( $ips );
$ipnum = ip2long ( $ip );
if ( $ipnum !== -1 && $ipnum !== false && ( long2ip ( $ipnum ) === $ip ) ) {
if ( ( $ipnum < 167772160 || $ipnum > 184549375 ) && // Not in 10.0.0.0/8
( $ipnum < - 1408237568 || $ipnum > - 1407188993 ) && // Not in 172.16.0.0/12
( $ipnum < - 1062731776 || $ipnum > - 1062666241 ) ) // Not in 192.168.0.0/16
return true;
}
}
return false;
}
/**
* getIP - returns the IP of the visitor
*
* @access public
* @param none
* @return string
*/
function getIP ()
{
$check = array(
'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_FORWARDED_FOR',
'HTTP_FORWARDED', 'HTTP_VIA', 'HTTP_X_COMING_FROM', 'HTTP_COMING_FROM',
'HTTP_CLIENT_IP'
);
foreach ( $check as $c ) {
if ( ip_valid ( &$_SERVER [ $c ] ) ) {
return ip_first ( $_SERVER [ $c ] );
}
}
return $_SERVER['REMOTE_ADDR'];
}
/**
* sanitize - a real sanitizer
*
* @access public
* @param none
* @return string
*/
function sanitize ( $var, $santype = 3 )
{
if ( $santype == 1 ) {
return strip_tags ( $var );
}
if ( $santype == 2 ) {
return htmlentities ( strip_tags ( $var ), ENT_QUOTES, 'UTF-8' );
}
if ( $santype == 3 ) {
if ( ! get_magic_quotes_gpc () ) {
return addslashes ( htmlentities ( strip_tags ( $var ), ENT_QUOTES, 'UTF-8' ) );
}
else {
return htmlentities ( strip_tags ( $var ), ENT_QUOTES, 'UTF-8' );
}
}
}
?>
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Last edited by rogem002; 04-08-2008 at 10:26 AM..
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04-08-2008, 10:18 AM
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Re: need help with Cannot modify header information - headers already sent error
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Posts: 23
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i took out all start sessions but main file and it still does it |
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04-08-2008, 10:27 AM
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Re: need help with Cannot modify header information - headers already sent error
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Posts: 843
Name: Mike
Location: United Kingdom
|
Quote:
Originally Posted by runnerjp
i took out all start sessions but main file and it still does it |
Just updated my post, it was because you already sent html. Unless you want to do a big recode you need to buffer the output:
http://www.php.net/manual/en/function.ob-start.php
In my above post I've edited the code so it should work.
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