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Warning: Cannot modify header information

6
Hi, I cant change the header to display images from a database. It's giving me this error :

Warning: Cannot modify header information - headers already sent by (output started at /home/content/d/f/m/dfmcons/html/secwhouse/index.php:18) in /home/content/d/f/m/dfmcons/html/secwhouse/index.php on line 71

Here is the code :
[php]
<?
mysql_connect("$host","$username", "$password");
mysql_select_db("secwhouse");
?>
<head>
<title>Security Warehouse Sample Concept</title>
</head>
<body>
<table width="750" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<th scope="col"><table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/
shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="750" height="125">
<param name="movie" value="secbanner2.swf" />
<param name="quality" value="high" />
<embed src="secbanner2.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="750" height="125"></embed>
</object></th>
</tr>
</table>
<table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><form id="mnusrch" name="mnusrch" method="post" action="">
<table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><input type="text" name="textfield" /></th>
<th scope="col"><img src="images/sec_01.gif" width="72" height="30" /></th>
<th scope="col"><img src="images/sec_03.gif" width="359" height="30" /></th>
<th scope="col"><img src="images/sec_04.gif" width="74" height="30" /></th>
<th scope="col"><img src="images/sec_05.gif" width="98" height="30" /></th>
</tr>
</table>
</form>
</th>
</tr>
</table>
<table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><img src="images/menu_01.gif" width="91" height="14" /></th>
<th scope="col"><img src="images/menu_02.gif" width="92" height="14" /></th>
<th scope="col"><img src="images/menu_03.gif" width="104" height="14" /></th>
<th scope="col"><img src="images/menu_04.gif" width="110" height="14" /></th>
<th scope="col"><img src="images/menu_05.gif" width="91" height="14" /></th>
<th scope="col"><img src="images/menu_06.gif" width="105" height="14" /></th>
<th scope="col"><img src="images/menu_07.gif" width="157" height="14" /></th>
</tr>
</table>
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col">&nbsp;</th>
</tr>
</table>
<?
$sql = "SELECT * FROM `prod` WHERE `prod`.`special` = 'n'";
$counter=0;
$result =mysql_query($sql);
while($rows=mysql_fetch_array($result))
{
$count=0;
while($count<>5)
{
?>
<table border="0" cellspacing="0" cellpadding="0" id="main">
<tr>
<th scope="col"><table border="0" cellpadding="0" cellspacing="0" id="left1">
<tr>
<th scope="col"><? header("Content-type: image/jpeg");echo $rows['image']; ?></th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row"><? echo $rows['prod']; ?></th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row"><? echo $rows['price']; ?></th>
</tr>
</table></th>
<th scope="col">&nbsp;</th>
<th scope="col"><table border="0" cellspacing="0" cellpadding="0">
<tr>
<?
$rows=mysql_fetch_array($result);
?>
<th scope="col"><? echo $rows['image']; ?></th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row"><? echo $rows['prod']; ?></th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row"><? echo $rows['price']; ?></th>
</tr>
</table></th>
<th scope="col">&nbsp;</th>
<th scope="col"><table border="0" cellpadding="0" cellspacing="0" id="right1">
<tr>
<th scope="col">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
</table></th><? $count=5 ?>
</tr>
</table><? } }?>
<br />
<p>&nbsp;</p>
<p><br />
</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p></th>
</tr>
</table>
</body>
</html>
[/php]I left out the connection details, cos the password is visible

That is not the only thing you left out. You must enclose all code within the appropriate code tags. Read the Posting Guidelines. - moderator
Feb 29 '08 #1
22 2015
hsriat
1,654 Expert 1GB
Post your code again after masking the password, and applying [php] tags.

Now you have disordered line 18 and 71, the actual culprits.
Feb 29 '08 #2
nathj
938 Expert 512MB
Hi,

The headers have to be set before any output is given. Output includes blank lines in the file. you can process information before the headers are set you just can't write anything to the screen.

Perhaps that's the problem.

Cheers
nathj
Feb 29 '08 #3
Markus
6,050 Expert 4TB
I cant Even see any headers being sent =/
Feb 29 '08 #4
nathj
938 Expert 512MB
I cant Even see any headers being sent =/

Nor can I but I'm guessing there something in the code that was left out.

Perhaps you could post the full code sample, using tags, but simply change the sesitive data to indicate what shuold be there.

nathj
Feb 29 '08 #5
henryrhenryr
103 100+
Surely line 66

Expand|Select|Wrap|Line Numbers
  1. header("Content-type: image/jpeg");
is your error...
Feb 29 '08 #6
Markus
6,050 Expert 4TB
Surely line 66

Expand|Select|Wrap|Line Numbers
  1. header("Content-type: image/jpeg");
is your error...
Indeed it is. :D

Can't believe i missed that :(

Ohwell, move that line to the beggining of your script.
Feb 29 '08 #7
hsriat
1,654 Expert 1GB
Indeed it is. :D

Can't believe i missed that :(

Ohwell, move that line to the beggining of your script.

NO!!! Its not an image file!

Instead of <? header("Content-type: image/jpeg");echo $rows['image']; ?>, write <img src="<?php echo $rows['image']; ?>"></img>
Mar 1 '08 #8
hsriat
1,654 Expert 1GB
*If $rows['image'] referrers to the name of the image file.
Mar 1 '08 #9
Markus
6,050 Expert 4TB
NO!!! Its not an image file!

Instead of <? header("Content-type: image/jpeg");echo $rows['image']; ?>, write <img src="<?php echo $rows['image']; ?>"></img>
Calm down.
I was tired last night _
Mar 1 '08 #10
hsriat
1,654 Expert 1GB
Calm down.
I was tired last night _
I'm calm :)
And the OP isn't back!
Mar 1 '08 #11
dfm
6
[PHP]<?
$host="******";
$username="******";
$password="*******";
$dbname="secwhouse";
mysql_connect("$host","$username", "$password");
mysql_select_db("$dbname");
header("Content-type: image/jpeg");
?>[/PHP[HTML]]<head>
<title>Security Warehouse Sample Concept</title>
</head>
<body>
<table width="750" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<th scope="col"><table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="750" height="125">
<param name="movie" value="secbanner2.swf" />
<param name="quality" value="high" />
<embed src="secbanner2.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="750" height="125"></embed>
</object></th>
</tr>
</table>
<table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><form id="mnusrch" name="mnusrch" method="post" action="">
<table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><input type="text" name="textfield" /></th>
<th scope="col"><img src="images/sec_01.gif" width="72" height="30" /></th>
<th scope="col"><img src="images/sec_03.gif" width="359" height="30" /></th>
<th scope="col"><img src="images/sec_04.gif" width="74" height="30" /></th>
<th scope="col"><img src="images/sec_05.gif" width="98" height="30" /></th>
</tr>
</table>
</form>
</th>
</tr>
</table>
<table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><img src="images/menu_01.gif" width="91" height="14" /></th>
<th scope="col"><img src="images/menu_02.gif" width="92" height="14" /></th>
<th scope="col"><img src="images/menu_03.gif" width="104" height="14" /></th>
<th scope="col"><img src="images/menu_04.gif" width="110" height="14" /></th>
<th scope="col"><img src="images/menu_05.gif" width="91" height="14" /></th>
<th scope="col"><img src="images/menu_06.gif" width="105" height="14" /></th>
<th scope="col"><img src="images/menu_07.gif" width="157" height="14" /></th>
</tr>
</table>
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col">&nbsp;</th>
</tr>
</table>[/HTML] [PHP] <?
$sql = "SELECT * FROM `prod` WHERE `prod`.`special` = 'n'";
$counter=0;
$result =mysql_query($sql);
while($rows=mysql_fetch_array($result))
{
$count=0;
while($count<>5)
{
?>[/PHP] [HTML] <table border="0" cellspacing="0" cellpadding="0" id="main">
<tr>
<th scope="col"><table border="0" cellpadding="0" cellspacing="0" id="left1">
<tr>
<th scope="col">[/HTML[PHP]]<? echo $rows['image']; ?>[/PHP[HTML]]</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">[/HTML[PHP]]<? echo $rows['prod']; ?>[/PHP][HTML]</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">[/HTML][PHP]<? echo $rows['price']; ?>[/PHP][HTML]</th>
</tr>
</table></th>
<th scope="col">&nbsp;</th>
<th scope="col"><table border="0" cellspacing="0" cellpadding="0">
<tr>[/HTML]
[PHP]<?
$rows=mysql_fetch_array($result);
?>[/PHP][HTML] <th scope="col">[/HTML][PHP]<? echo $rows['image']; ?>[/PHP][HTML]</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">[/HTML][PHP]<? echo $rows['prod']; ?>[/PHP][HTML]</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">[/HTML][PHP]<? echo $rows['price']; ?>[/PHP][HTML]</th>
</tr>
</table></th>
<th scope="col">&nbsp;</th>
<th scope="col"><table border="0" cellpadding="0" cellspacing="0" id="right1">
<tr>
<th scope="col">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
</table></th>[/HTML][PHP]<? $count=5 ?>[/PHP]
[HTML]</tr>
</table>[/HTML][PHP]<? } }?>[/PHP]
[HTML] <br />
<p>&nbsp;</p>
<p><br />
</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p></th>
</tr>
</table>
</body>
</html>[/HTML]

THANKS FOR ALL THE REPLIES, I MOVED THE HEADER CODE TO THE BEGINNING OF THE SCRIPT, THE ERROR IS GONE BUT THE IMAGE DOESN'T DISPLAY , IT JUST SHOWS FUNNY CHARACTERS!!!!!
Mar 2 '08 #12
dfm
6
[php]<?
$host="******";
$username="******";
$password="*******";
$dbname="secwhouse";
mysql_connect("$host","$username", "$password");
mysql_select_db("$dbname");
header("Content-type: image/jpeg");
?><head>
<title>Security Warehouse Sample Concept</title>
</head>
<body>
<table width="750" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<th scope="col"><table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/
cabs/flash/swflash.cab#version=7,0,19,0" width="750" height="125">
<param name="movie" value="secbanner2.swf" />
<param name="quality" value="high" />
<embed src="secbanner2.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="750" height="125"></embed>
</object></th>
</tr>
</table>
<table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><form id="mnusrch" name="mnusrch" method="post" action="">
<table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><input type="text" name="textfield" /></th>
<th scope="col"><img src="images/sec_01.gif" width="72" height="30" /></th>
<th scope="col"><img src="images/sec_03.gif" width="359" height="30" /></th>
<th scope="col"><img src="images/sec_04.gif" width="74" height="30" /></th>
<th scope="col"><img src="images/sec_05.gif" width="98" height="30" /></th>
</tr>
</table>
</form>
</th>
</tr>
</table>
<table width="750" border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col"><img src="images/menu_01.gif" width="91" height="14" /></th>
<th scope="col"><img src="images/menu_02.gif" width="92" height="14" /></th>
<th scope="col"><img src="images/menu_03.gif" width="104" height="14" /></th>
<th scope="col"><img src="images/menu_04.gif" width="110" height="14" /></th>
<th scope="col"><img src="images/menu_05.gif" width="91" height="14" /></th>
<th scope="col"><img src="images/menu_06.gif" width="105" height="14" /></th>
<th scope="col"><img src="images/menu_07.gif" width="157" height="14" /></th>
</tr>
</table>
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<th scope="col">&nbsp;</th>
</tr>
</table>
<?
$sql = "SELECT * FROM `prod` WHERE `prod`.`special` = 'n'";
$counter=0;
$result =mysql_query($sql);
while($rows=mysql_fetch_array($result))
{
$count=0;
while($count<>5)
{
?>
<table border="0" cellspacing="0" cellpadding="0" id="main">
<tr>
<th scope="col"><table border="0" cellpadding="0" cellspacing="0" id="left1">
<tr>
<th scope="col"><? echo $rows['image']; ?></th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row"><? echo $rows['prod']; ?></th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row"><? echo $rows['price']; ?></th>
</tr>
</table></th>
<th scope="col">&nbsp;</th>
<th scope="col"><table border="0" cellspacing="0" cellpadding="0">
<tr>
<?
$rows=mysql_fetch_array($result);
?>
<th scope="col"><? echo $rows['image']; ?></th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row"><? echo $rows['prod']; ?></th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row"><? echo $rows['price']; ?></th>
</tr>
</table></th>
<th scope="col">&nbsp;</th>
<th scope="col"><table border="0" cellpadding="0" cellspacing="0" id="right1">
<tr>
<th scope="col">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
<tr>
<th scope="row">&nbsp;</th>
</tr>
</table></th><? $count=5 ?>
</tr>
</table><? } }?>
<br />
<p>&nbsp;</p>
<p><br />
</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p></th>
</tr>
</table>
</body>
</html>[/php]

I moved the header code to the beginning of the script , the error is gone but it doesn't display the image, it just displays funny characters! please help,
Mar 2 '08 #13
Markus
6,050 Expert 4TB
Look at post #8

And dont type in caps.
Mar 2 '08 #14
ronverdonk
4,258 Expert 4TB
Don't overdo you tags now. Just one pair at start and end of your code suffices.

moderator
Mar 2 '08 #15
dfm
6
I tried that, its displaying a picture box with a red x in it and the funny characters next to it ?
Mar 3 '08 #16
nathj
938 Expert 512MB
I tried that, its displaying a picture box with a red x in it and the funny characters next to it ?
If the data has the path to the image in it and this is where the image then is it should show just fine. Perhaps the image isn't wwhere the database says it is?

Did you place any alt text in the image text? This should display if the image can't be found.

Double check the file path of the image and check this path in relation to the path of the code being executed.

If you are just using jpg and <img> tags then the header is not strictly necessary as far as I am aware.

Cheers
nathj
Mar 3 '08 #17
hsriat
1,654 Expert 1GB
I tried that, its displaying a picture box with a red x in it and the funny characters next to it ?

What were you actually trying to get by using that header?..
Also post the HTML generated by that part of the code here.
Mar 3 '08 #18
dfm
6
[HTML]O;k2:S
8 |}y 5
{w,0p?>Ϋq$XQ|oex
kk`y(_ \{N]_p䂦&
/'Z
=f C}oӈiYv
a)a)a)a)a)a)a)a)a)a
)a)a)a)a+ؔ9g,I<s
S>5LonN=RS
=Q=QN9-%.8K2
R㌔%.8K2R
%.8K2R㌔%.8K2W
]du^?t::*ʊ*y5G ,
R,RKn.Ժ%.K2R
댔%.
K2R댔%.K2R댔%.
K2Q{C%F=MyD
>}8ưuRÈRÈRÈRÈW~2h
&2h&2h&2h&2h
&2h&2h&2h&v
*7\R,;rhrE,K
.2RˌҾrd}J_qE)}
Md)}J_qd}J_q
d)}J_qd9;PyTW
 qKpSV˖)iJZq9Є
v3 h=v{ 3ݡ!gB=v
3ݡ!gB=v3 sqy
?᧍N1 "> [/HTML]

I have a mysql database to which I uploaded an image not a the path to an image but the actual image. When using a test.php file to display it displays the image fine. It gave me the same error when I used a function.php with the connection string, so I deleted it and put the connection string in the actual page and it worked. But now on the actual page I need to use it , it doesnt want to display?
Mar 3 '08 #19
dfm
6
meant put the connection string in the test page, sorry
Mar 3 '08 #20
nathj
938 Expert 512MB
Why not just have the path to the image stored in the database and then use that information in a normal <img> tag?

This would be much simpler and not require headers.

Cheers
nathj
Mar 3 '08 #21
hsriat
1,654 Expert 1GB
For that you would need to make another PHP file. Say get_image.php with the following code:[php]<php
if (!isset($_GET['id'])) die('Invalid Parameter');
/*
DO - CONNECT TO DATABASE
FETCH ARRAY FROM THE DB, WHERE unique_id_of_the_table = $_GET['id']
*/
header("Content-type: image/jpeg");
echo $rows['image'];
?>[/php]
And edit line no. 71 of your above file like this:
[html]<th scope="col"><img src="get_image.php?id=<? echo $rows['unique_id_of_the_table']; ?>"></img></th>[/html]

* unique_id_of_the_table : whatever unique id you are using.
Mar 3 '08 #22
nathj
938 Expert 512MB
Maybe I'm missing something, and I'm perfectly happy to admit that, but is the point of putting the image itself into the database? Surely it is easier to just put the image as a file on the server somewhere and then put the file path in the database. This can then be used in a nomal <img> tag without any need for faffing around with headers.

It just seems to make more sense to me that way. Obviously you can't set the src of the img to be the actual image which is why it didn't work earlier.

If it were me I would have fields in the table called image_src, image_title and image_alt. Then assuming the SQL had been run and the following code is inside a foreach loop:
[php]
echo "<img src='" . $laRow['image_src'] . "' title='" . $laRow['image_title'] . "' alt='" . $laRow['image_alt'] ."' />' ;
[/php]

I am aware that this is a small code snippet, I would have this in a foreach loop after the SQL returned an associative array. I use this type of structure a lot and it works everytime.

Cheers
nathj
Mar 3 '08 #23

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There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
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marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
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jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
1
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
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tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
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isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new...
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by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and...

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