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Fout in Page_header.php

https://www.phpbb.nl/forums/viewtopic.php?f=9&t=12598

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Fout in Page_header.php

Geplaatst: 11 sep 2004, 00:43
door obiku
Ik ben nu al bijna 2 dagen aan het zoeken of er een fout zit in mijn page_header.php. Als ik namelijk op een topic een reactie geef, krijg ik bij het gedeelte Onderwerp de volgende fout te zien boven de berichten.

Warning: Cannot modify header information - headers already sent by (output started at d:\www\forums\includes\topic_review.php:507) in d:\www\forums\includes\page_header.php on line 503

In die regel herhaalt zich nog 2 keer, eindigend op line 505 en line 506
Ik hoop dat iemand mijn code kan controleren.

Code: Selecteer alles

<?php
/***************************************************************************
 *                              page_header.php
 *                            -------------------
 *   begin                : Saturday, Feb 13, 2001
 *   copyright            : (C) 2001 The phpBB Group
 *   email                : support@phpbb.com
 *
 *   $Id: page_header.php,v 1.106.2.23 2004/07/11 16:46:19 acydburn Exp $
 *
 *
 ***************************************************************************/

/***************************************************************************
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 ***************************************************************************/

if ( !defined('IN_PHPBB') )
{
	die("Hacking attempt");
}

define('HEADER_INC', TRUE);

//
// gzip_compression
//
$do_gzip_compress = FALSE;
if ( $board_config['gzip_compress'] )
{
	$phpver = phpversion();

	$useragent = (isset($_SERVER["HTTP_USER_AGENT"]) ) ? $_SERVER["HTTP_USER_AGENT"] : $HTTP_USER_AGENT;

	if ( $phpver >= '4.0.4pl1' && ( strstr($useragent,'compatible') || strstr($useragent,'Gecko') ) )
	{
		if ( extension_loaded('zlib') )
		{
			ob_start('ob_gzhandler');
		}
	}
	else if ( $phpver > '4.0' )
	{
		if ( strstr($HTTP_SERVER_VARS['HTTP_ACCEPT_ENCODING'], 'gzip') )
		{
			if ( extension_loaded('zlib') )
			{
				$do_gzip_compress = TRUE;
				ob_start();
				ob_implicit_flush(0);

				header('Content-Encoding: gzip');
			}
		}
	}
}

//
// Parse and show the overall header.
//
$l_admin_top_link = ( $userdata['user_level'] == ADMIN ) ? '<a class="mainmenu" href="admin/index.' . $phpEx . '?sid=' . $userdata['session_id'] . '"><img src="' . $images['admin_panel'] . '" width="12" height="13" border="0" hspace="3" />' . $lang['Admin_panel_top'] . '</a>' : '';

$template->set_filenames(array(
	'overall_header' => ( empty($gen_simple_header) ) ? 'overall_header.tpl' : 'simple_header.tpl')
);

//
// Generate logged in/logged out status
//
if ( $userdata['session_logged_in'] )
{
	$u_login_logout = 'login.'.$phpEx.'?logout=true&sid=' . $userdata['session_id'];
	$l_login_logout = $lang['Logout'] . ' [ ' . $userdata['username'] . ' ]';
}
else
{
	$u_login_logout = 'login.'.$phpEx;
	$l_login_logout = $lang['Login'];
}

$s_last_visit = ( $userdata['session_logged_in'] ) ? create_date($board_config['default_dateformat'], $userdata['user_lastvisit'], $board_config['board_timezone']) : '';

//
// Get basic (usernames + totals) online
// situation
//
$logged_visible_online = 0;
$logged_hidden_online = 0;
$guests_online = 0;
$online_userlist = '';
$l_online_users = '';

if (defined('SHOW_ONLINE'))
{

	$user_forum_sql = ( !empty($forum_id) ) ? "AND s.session_page = " . intval($forum_id) : '';
	$sql = "SELECT u.username, u.user_id, u.user_allow_viewonline, u.user_level, s.session_logged_in, s.session_ip
		FROM ".USERS_TABLE." u, ".SESSIONS_TABLE." s
		WHERE u.user_id = s.session_user_id
			AND s.session_time >= ".( time() - 300 ) . "
			$user_forum_sql
		ORDER BY u.username ASC, s.session_ip ASC";
	if( !($result = $db->sql_query($sql)) )
	{
		message_die(GENERAL_ERROR, 'Could not obtain user/online information', '', __LINE__, __FILE__, $sql);
	}

	$userlist_ary = array();
	$userlist_visible = array();

	$prev_user_id = 0;
	$prev_user_ip = $prev_session_ip = '';

	while( $row = $db->sql_fetchrow($result) )
	{
		// User is logged in and therefor not a guest
		if ( $row['session_logged_in'] )
		{
			// Skip multiple sessions for one user
			if ( $row['user_id'] != $prev_user_id )
			{
				$style_color = '';
				if ( $row['user_level'] == ADMIN )
				{
					$row['username'] = '<b>' . $row['username'] . '</b>';
					$style_color = 'style="color:#' . $theme['fontcolor3'] . '"';
				}
				else if ( $row['user_level'] == MOD )
				{
					$row['username'] = '<b>' . $row['username'] . '</b>';
					$style_color = 'style="color:#' . $theme['fontcolor2'] . '"';
				}

				if ( $row['user_allow_viewonline'] )
				{
					$user_online_link = '<a href="' . append_sid("profile.$phpEx?mode=viewprofile&" . POST_USERS_URL . "=" . $row['user_id']) . '"' . $style_color .'>' . $row['username'] . '</a>';
					$logged_visible_online++;
				}
				else
				{
					$user_online_link = '<a href="' . append_sid("profile.$phpEx?mode=viewprofile&" . POST_USERS_URL . "=" . $row['user_id']) . '"' . $style_color .'><i>' . $row['username'] . '</i></a>';
					$logged_hidden_online++;
				}

				if ( $row['user_allow_viewonline'] || $userdata['user_level'] == ADMIN || $userdata['user_level'] == MOD )
				{
					$online_userlist .= ( $online_userlist != '' ) ? ', ' . $user_online_link : $user_online_link;
				}
			}

			$prev_user_id = $row['user_id'];
		}
		else
		{
			// Skip multiple sessions for one user
			if ( $row['session_ip'] != $prev_session_ip )
			{
				$guests_online++;
			}
		}

		$prev_session_ip = $row['session_ip'];
	}
	$db->sql_freeresult($result);

	if ( empty($online_userlist) )
	{
		$online_userlist = $lang['None'];
	}
	$online_userlist = ( ( isset($forum_id) ) ? $lang['Browsing_forum'] : $lang['Registered_users'] ) . ' ' . $online_userlist;

	$total_online_users = $logged_visible_online + $logged_hidden_online + $guests_online;

	if ( $total_online_users > $board_config['record_online_users'])
	{
		$board_config['record_online_users'] = $total_online_users;
		$board_config['record_online_date'] = time();

		$sql = "UPDATE " . CONFIG_TABLE . "
			SET config_value = '$total_online_users'
			WHERE config_name = 'record_online_users'";
		if ( !$db->sql_query($sql) )
		{
			message_die(GENERAL_ERROR, 'Could not update online user record (nr of users)', '', __LINE__, __FILE__, $sql);
		}

		$sql = "UPDATE " . CONFIG_TABLE . "
			SET config_value = '" . $board_config['record_online_date'] . "'
			WHERE config_name = 'record_online_date'";
		if ( !$db->sql_query($sql) )
		{
			message_die(GENERAL_ERROR, 'Could not update online user record (date)', '', __LINE__, __FILE__, $sql);
		}
	}

	if ( $total_online_users == 0 )
	{
		$l_t_user_s = $lang['Online_users_zero_total'];
	}
	else if ( $total_online_users == 1 )
	{
		$l_t_user_s = $lang['Online_user_total'];
	}
	else
	{
		$l_t_user_s = $lang['Online_users_total'];
	}

	if ( $logged_visible_online == 0 )
	{
		$l_r_user_s = $lang['Reg_users_zero_total'];
	}
	else if ( $logged_visible_online == 1 )
	{
		$l_r_user_s = $lang['Reg_user_total'];
	}
	else
	{
		$l_r_user_s = $lang['Reg_users_total'];
	}

	if ( $logged_hidden_online == 0 )
	{
		$l_h_user_s = $lang['Hidden_users_zero_total'];
	}
	else if ( $logged_hidden_online == 1 )
	{
		$l_h_user_s = $lang['Hidden_user_total'];
	}
	else
	{
		$l_h_user_s = $lang['Hidden_users_total'];
	}

	if ( $guests_online == 0 )
	{
		$l_g_user_s = $lang['Guest_users_zero_total'];
	}
	else if ( $guests_online == 1 )
	{
		$l_g_user_s = $lang['Guest_user_total'];
	}
	else
	{
		$l_g_user_s = $lang['Guest_users_total'];
	}

	$l_online_users = sprintf($l_t_user_s, $total_online_users);
	$l_online_users .= sprintf($l_r_user_s, $logged_visible_online);
	$l_online_users .= sprintf($l_h_user_s, $logged_hidden_online);
	$l_online_users .= sprintf($l_g_user_s, $guests_online);
}

//
// Obtain number of new private messages
// if user is logged in
//
if ( ($userdata['session_logged_in']) && (empty($gen_simple_header)) )
{
	if ( $userdata['user_new_privmsg'] )
	{
		$l_message_new = ( $userdata['user_new_privmsg'] == 1 ) ? $lang['New_pm'] : $lang['New_pms'];
		$l_privmsgs_text = sprintf($l_message_new, $userdata['user_new_privmsg']);

		if ( $userdata['user_last_privmsg'] > $userdata['user_lastvisit'] )
		{
			$sql = "UPDATE " . USERS_TABLE . "
				SET user_last_privmsg = " . $userdata['user_lastvisit'] . "
				WHERE user_id = " . $userdata['user_id'];
			if ( !$db->sql_query($sql) )
			{
				message_die(GENERAL_ERROR, 'Could not update private message new/read time for user', '', __LINE__, __FILE__, $sql);
			}

			$s_privmsg_new = 1;
			$icon_pm = $images['pm_new_msg'];
		}
		else
		{
			$s_privmsg_new = 0;
			$icon_pm = $images['pm_new_msg'];
		}
	}
	else
	{
		$l_privmsgs_text = $lang['No_new_pm'];

		$s_privmsg_new = 0;
		$icon_pm = $images['pm_no_new_msg'];
	}

	if ( $userdata['user_unread_privmsg'] )
	{
		$l_message_unread = ( $userdata['user_unread_privmsg'] == 1 ) ? $lang['Unread_pm'] : $lang['Unread_pms'];
		$l_privmsgs_text_unread = sprintf($l_message_unread, $userdata['user_unread_privmsg']);
	}
	else
	{
		$l_privmsgs_text_unread = $lang['No_unread_pm'];
	}
}
else
{
	$icon_pm = $images['pm_no_new_msg'];
	$l_privmsgs_text = $lang['Login_check_pm'];
	$l_privmsgs_text_unread = '';
	$s_privmsg_new = 0;
}

//
// Generate HTML required for Mozilla Navigation bar
//
if (!isset($nav_links))
{
	$nav_links = array();
}

$nav_links_html = '';
$nav_link_proto = '<link rel="%s" href="%s" title="%s" />' . "\n";
while( list($nav_item, $nav_array) = @each($nav_links) )
{
	if ( !empty($nav_array['url']) )
	{
		$nav_links_html .= sprintf($nav_link_proto, $nav_item, append_sid($nav_array['url']), $nav_array['title']);
	}
	else
	{
		// We have a nested array, used for items like <link rel='chapter'> that can occur more than once.
		while( list(,$nested_array) = each($nav_array) )
		{
			$nav_links_html .= sprintf($nav_link_proto, $nav_item, $nested_array['url'], $nested_array['title']);
		}
	}
}

// Format Timezone. We are unable to use array_pop here, because of PHP3 compatibility
$l_timezone = explode('.', $board_config['board_timezone']);
$l_timezone = (count($l_timezone) > 1 && $l_timezone[count($l_timezone)-1] != 0) ? $lang[sprintf('%.1f', $board_config['board_timezone'])] : $lang[number_format($board_config['board_timezone'])];
//
// The following assigns all _common_ variables that may be used at any point
// in a template.
//
$template->assign_vars(array(
	'SITENAME' => $board_config['sitename'],
	'SITE_DESCRIPTION' => $board_config['site_desc'],
	'PAGE_TITLE' => $page_title,
	'LAST_VISIT_DATE' => sprintf($lang['You_last_visit'], $s_last_visit),
	'CURRENT_TIME' => sprintf($lang['Current_time'], create_date($board_config['default_dateformat'], time(), $board_config['board_timezone'])),
	'TOTAL_USERS_ONLINE' => $l_online_users,
	'LOGGED_IN_USER_LIST' => $online_userlist,
	'RECORD_USERS' => sprintf($lang['Record_online_users'], $board_config['record_online_users'], create_date($board_config['default_dateformat'], $board_config['record_online_date'], $board_config['board_timezone'])),
	'PRIVATE_MESSAGE_INFO' => $l_privmsgs_text,
	'PRIVATE_MESSAGE_INFO_UNREAD' => $l_privmsgs_text_unread,
	'PRIVATE_MESSAGE_NEW_FLAG' => $s_privmsg_new,

	'PRIVMSG_IMG' => $icon_pm,

	'L_ADMIN_TOP_LINK' => $l_admin_top_link,
	'L_USERNAME' => $lang['Username'],
	'L_PASSWORD' => $lang['Password'],
	'L_LOGIN_LOGOUT' => $l_login_logout,
	'L_LOGIN' => $lang['Login'],
	'L_LOG_ME_IN' => $lang['Log_me_in'],
	'L_AUTO_LOGIN' => $lang['Log_me_in'],
	'L_INDEX' => sprintf($lang['Forum_Index'], $board_config['sitename']),
	'L_REGISTER' => $lang['Register'],
	'L_PROFILE' => $lang['Profile'],
	'L_SEARCH' => $lang['Search'],
	'L_PRIVATEMSGS' => $lang['Private_Messages'],
	'L_WHO_IS_ONLINE' => $lang['Who_is_Online'],
	'L_MEMBERLIST' => $lang['Memberlist'],
	'L_FAQ' => $lang['FAQ'],
	'L_USERGROUPS' => $lang['Usergroups'],
	'L_SEARCH_NEW' => $lang['Search_new'],
	'L_SEARCH_UNANSWERED' => $lang['Search_unanswered'],
	'L_SEARCH_SELF' => $lang['Search_your_posts'],
	'L_WHOSONLINE_ADMIN' => sprintf($lang['Admin_online_color'], '<span style="color:#' . $theme['fontcolor3'] . '">', '</span>'),
	'L_WHOSONLINE_MOD' => sprintf($lang['Mod_online_color'], '<span style="color:#' . $theme['fontcolor2'] . '">', '</span>'),
	'L_WATCHED_TOPICS' => $lang['Watched_Topics'],

	'U_SEARCH_UNANSWERED' => append_sid('search.'.$phpEx.'?search_id=unanswered'),
	'U_SEARCH_SELF' => append_sid('search.'.$phpEx.'?search_id=egosearch'),
	'U_SEARCH_NEW' => append_sid('search.'.$phpEx.'?search_id=newposts'),
	'U_INDEX' => append_sid('index.'.$phpEx),
	'U_REGISTER' => append_sid('profile.'.$phpEx.'?mode=register'),
	'U_PROFILE' => append_sid('profile.'.$phpEx.'?mode=editprofile'),
	'U_PRIVATEMSGS' => append_sid('privmsg.'.$phpEx.'?folder=inbox'),
	'U_PRIVATEMSGS_POPUP' => append_sid('privmsg.'.$phpEx.'?mode=newpm'),
	'U_SEARCH' => append_sid('search.'.$phpEx),
	'U_MEMBERLIST' => append_sid('memberlist.'.$phpEx),
	'U_MODCP' => append_sid('modcp.'.$phpEx),
	'U_FAQ' => append_sid('faq.'.$phpEx),
	'U_VIEWONLINE' => append_sid('viewonline.'.$phpEx),
	'U_LOGIN_LOGOUT' => append_sid($u_login_logout),
	'U_GROUP_CP' => append_sid('groupcp.'.$phpEx),
	// ezPortal
	'U_PORTAL' => append_sid('portal.'.$phpEx),
	'L_HOME' => $lang['Home'],

	'U_STAFF' => append_sid('staff.'.$phpEx),
	'L_STAFF' => $lang['Staff'],
	
	// Album MOD
	'L_ALBUM' => $lang['Album'],
	'U_ALBUM' => append_sid('album.'.$phpEx),
	
	'U_WATCHED_TOPICS' => append_sid($phpbb_root_path . 'watched_topics.' . $phpEx),

	'S_CONTENT_DIRECTION' => $lang['DIRECTION'],
	'S_CONTENT_ENCODING' => $lang['ENCODING'],
	'S_CONTENT_DIR_LEFT' => $lang['LEFT'],
	'S_CONTENT_DIR_RIGHT' => $lang['RIGHT'],
	'S_TIMEZONE' => sprintf($lang['All_times'], $l_timezone),
	'S_LOGIN_ACTION' => append_sid('login.'.$phpEx),

	'T_HEAD_STYLESHEET' => $theme['head_stylesheet'],
	'T_BODY_BACKGROUND' => $theme['body_background'],
	'T_BODY_BGCOLOR' => '#'.$theme['body_bgcolor'],
	'T_BODY_TEXT' => '#'.$theme['body_text'],
	'T_BODY_LINK' => '#'.$theme['body_link'],
	'T_BODY_VLINK' => '#'.$theme['body_vlink'],
	'T_BODY_ALINK' => '#'.$theme['body_alink'],
	'T_BODY_HLINK' => '#'.$theme['body_hlink'],
	'T_TR_COLOR1' => '#'.$theme['tr_color1'],
	'T_TR_COLOR2' => '#'.$theme['tr_color2'],
	'T_TR_COLOR3' => '#'.$theme['tr_color3'],
	'T_TR_CLASS1' => $theme['tr_class1'],
	'T_TR_CLASS2' => $theme['tr_class2'],
	'T_TR_CLASS3' => $theme['tr_class3'],
	'T_TH_COLOR1' => '#'.$theme['th_color1'],
	'T_TH_COLOR2' => '#'.$theme['th_color2'],
	'T_TH_COLOR3' => '#'.$theme['th_color3'],
	'T_TH_CLASS1' => $theme['th_class1'],
	'T_TH_CLASS2' => $theme['th_class2'],
	'T_TH_CLASS3' => $theme['th_class3'],
	'T_TD_COLOR1' => '#'.$theme['td_color1'],
	'T_TD_COLOR2' => '#'.$theme['td_color2'],
	'T_TD_COLOR3' => '#'.$theme['td_color3'],
	'T_TD_CLASS1' => $theme['td_class1'],
	'T_TD_CLASS2' => $theme['td_class2'],
	'T_TD_CLASS3' => $theme['td_class3'],
	'T_FONTFACE1' => $theme['fontface1'],
	'T_FONTFACE2' => $theme['fontface2'],
	'T_FONTFACE3' => $theme['fontface3'],
	'T_FONTSIZE1' => $theme['fontsize1'],
	'T_FONTSIZE2' => $theme['fontsize2'],
	'T_FONTSIZE3' => $theme['fontsize3'],
	'T_FONTCOLOR1' => '#'.$theme['fontcolor1'],
	'T_FONTCOLOR2' => '#'.$theme['fontcolor2'],
	'T_FONTCOLOR3' => '#'.$theme['fontcolor3'],
	'T_SPAN_CLASS1' => $theme['span_class1'],
	'T_SPAN_CLASS2' => $theme['span_class2'],
	'T_SPAN_CLASS3' => $theme['span_class3'],
	// Page Loading MOD
	'L_PAGE_LOADING_WAIT' => $lang['Page_loading_wait'],
	'L_PAGE_LOADING_STOP' => $lang['Page_loading_stop'],

	'NAV_LINKS' => $nav_links_html)
);

//
// Login box?
//
if ( !$userdata['session_logged_in'] )
{
	$template->assign_block_vars('switch_user_logged_out', array());
}
else
{
	$template->assign_block_vars('switch_user_logged_in', array());

	if ( !empty($userdata['user_popup_pm']) )
	{
		$template->assign_block_vars('switch_enable_pm_popup', array());
	}
}
// change password ?
if ($HTTP_GET_VARS['ch_passwd'])
{
		$template->assign_var("PASSWD_POPUP",  
		"<script language=\"Javascript\" type=\"text/javascript\"><!-- 
		   window.open('".append_sid('change_password.'.$phpEx)."', '_phpbbpasswd', 'HEIGHT=400,resizable=yes,WIDTH=600'); 
		  //--> 
		</script>");
}

// Add no-cache control for cookies if they are set
//$c_no_cache = (isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_sid']) || isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_data'])) ? 'no-cache="set-cookie", ' : '';

// Work around for "current" Apache 2 + PHP module which seems to not
// cope with private cache control setting
if (!empty($_SERVER['SERVER_SOFTWARE']) && strstr($_SERVER['SERVER_SOFTWARE'], 'Apache/2'))
{
	header ('Cache-Control: no-cache, pre-check=0, post-check=0');
}
else
{
	header ('Cache-Control: private, pre-check=0, post-check=0, max-age=0');
}
header ('Expires: 0');
header ('Pragma: no-cache');

$template->pparse('overall_header');

?>
Hoop niet dat ik nu afgeschoten word omdat ik alle code hier plaats. Ik heb ook alle add-on's nogmaals gecontroleerd om te kijken of ik wat vergeten ben.

Re: Fout in Page_header.php

Geplaatst: 11 sep 2004, 01:12
door mosymuis
obiku schreef:Ik ben nu al bijna 2 dagen aan het zoeken of er een fout zit in mijn page_header.php.
obiku schreef:Warning: Cannot modify header information - headers already sent by (output started at d:\www\forums\includes\topic_review.php:507) in d:\www\forums\includes\page_header.php on line 503
Deze fout zit waarschijnlijk niet in je page_header.php, daar komt hij gewoon aan het licht. Deze error betekent dat er al gegevens naar de browser zijn gestuurd (spatie, enter, tekst) vóór dat er bijvooorbeeld nog cookies werden aangepast. Dit mag niet in PHP en daarom zie je deze error.

Het is helaas nogal lastig na te gaan waar het precies gebeurt. Sinds wanneer heb je er last van? Wat heb je toen aangepast? Loop zoieso de PHP bestanden eens na om te kijken of er ruimte is vóór de <?php opening of ná het ?> sluitcommando.

obiku schreef:Hoop niet dat ik nu afgeschoten word omdat ik alle code hier plaats. Ik heb ook alle add-on's nogmaals gecontroleerd om te kijken of ik wat vergeten ben.
We stellen het hier meer op prijs als je bestanden in een .txt file linkt, dit werkt makkelijker en neemt ook nog eens minder ruimte in in het topic.

Geplaatst: 11 sep 2004, 10:25
door obiku
Sorry, ik zal voortaan een txt meesturen.
Maar je hebt gelijk, probleem is opgelost.
In eerste instantie had ik de regels onderaan beginnent vanaf

Code: Selecteer alles

if (!empty($_SERVER['SERVER_SOFTWARE']) && strstr($_SERVER['SERVER_SOFTWARE'], 'Apache/2'))
{
	header ('Cache-Control: no-cache, pre-check=0, post-check=0');
}
else
{
  header ('Cache-Control: private, pre-check=0, post-check=0, max-age=0');
}
header ('Expires: 0');
header ('Pragma: no-cache');

$template->pparse('overall_header');

?>
het gedeelte

Code: Selecteer alles

else
{
  header ('Cache-Control: private, pre-check=0, post-check=0, max-age=0');
}
header ('Expires: 0');
header ('Pragma: no-cache');
met // als commentaar gemaakt. Dit werkte :D , maar volgens mij moest dit toch niet de bedoeling zijn :lol: .
Hierna heb ik alle php files bekeken en eventueel karakters na de sluit ?> weggehaald. Heft gedeelte wat ik met // commentaar had gemaakt weer hersteld. En nu werkt het ook goed. :D
Vraag ik me wel af wat dat gedeelte nu precies doet. Mijn oplossing had visueel gezien geen verschil met jouw oplossing.

Thnx
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