Warning: Cannot modify header information

4 posts by 2 authors in: Forums > CMS Builder
Last Post: May 25, 2011 (RSS)

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By rez - May 24, 2011

<?php header('Content-type: text/html; charset=utf-8'); ?>
<?php
$libraryPath = 'cmsAdmin/lib/viewer_functions.php';
$dirsToCheck = array('/home/xxx/public_html/','','../','../../','../../../');
foreach ($dirsToCheck as $dir) { if (@include_once("$dir$libraryPath")) { break; }}
if (!function_exists('getRecords')) { die("Couldn't load viewer library, check filepath in sourcecode."); }
  list($home_slideshowRecords, $home_slideshowMetaData) = getRecords(array(
    'tableName'   => 'home_slideshow',
  ));
?><<?php ?>?xml version="1.0" encoding="utf-8"?>
<SlideshowBox>
  <items>
    <?php foreach ($home_slideshowRecords as $record): ?>
    <?php foreach ($record['slide'] as $upload): ?>
    <item>
      <thumbnailPath><?php echo $upload['thumbUrlPath'] ?></thumbnailPath>
      <largeImagePath><img src="<?php echo $upload['urlPath'] ?>"/></largeImagePath>
      <fullScreenImagePath><img src="<?php echo $upload['urlPath'] ?>"/></fullScreenImagePath>
      <title>
      <![CDATA[<?php echo $record['title'] ?>]]>
      </title>
      <description>
        <![CDATA[<?php echo $record['dsc'] ?>]]>
      </description>
    </item>
    <?php endforeach ?>
    <?php endforeach ?>
  </items>
</SlideshowBox>

I am getting the, "Warning: Cannot modify header information - headers already sent by (output started at /xxx/sourcexml.php:1) in /xxx/sourcexml.php on line 1"

I don't see that there is any white space or enters in the code as mentioned in other threads.

thanks for any help

Re: [rez] Warning: Cannot modify header information

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By Jason - May 24, 2011

Hi Rez,

You can re-arrange your code so that the header() function comes after your viewer_functions are included like this:

<?php 
$libraryPath = 'cmsAdmin/lib/viewer_functions.php'; 
$dirsToCheck = array('/home/xxx/public_html/','','../','../../','../../../'); 
foreach ($dirsToCheck as $dir) { if (@include_once("$dir$libraryPath")) { break; }} 
if (!function_exists('getRecords')) { die("Couldn't load viewer library, check filepath in sourcecode."); } 
  list($home_slideshowRecords, $home_slideshowMetaData) = getRecords(array( 
    'tableName'   => 'home_slideshow', 
  )); 
?>
<?php header('Content-type: text/html; charset=utf-8'); ?> 
<<?php ?>?xml version="1.0" encoding="utf-8"?> 
<SlideshowBox> 
  <items> 
    <?php foreach ($home_slideshowRecords as $record): ?> 
    <?php foreach ($record['slide'] as $upload): ?> 
    <item> 
      <thumbnailPath><?php echo $upload['thumbUrlPath'] ?></thumbnailPath> 
      <largeImagePath><img src="<?php echo $upload['urlPath'] ?>"/></largeImagePath> 
      <fullScreenImagePath><img src="<?php echo $upload['urlPath'] ?>"/></fullScreenImagePath> 
      <title> 
      <![CDATA[<?php echo $record['title'] ?>]]> 
      </title> 
      <description> 
        <![CDATA[<?php echo $record['dsc'] ?>]]> 
      </description> 
    </item> 
    <?php endforeach ?> 
    <?php endforeach ?> 
  </items> 
</SlideshowBox>

Hope this helps

---------------------------------------------------
Jason Sauchuk - Project Manager
interactivetools.com

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Re: [Jason] Warning: Cannot modify header information

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By rez - May 24, 2011 - edited: May 24, 2011

Unfortunately, that puts that error in that line, 10

"Warning: Cannot modify header information - headers already sent by (output started at /xxx/jsslide/sourcexml.php:1) in /xxx/jsslide/sourcexml.php on line 10"

If I remove that line, <?php header('Content-type: text/html; charset=utf-8'); ?>

it works. Probably not a good idea to remove it?

Re: [rez] Warning: Cannot modify header information

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By Jason - May 25, 2011

Hi,

Try using the format shown here:

http://www.interactivetools.com/docs/cmsbuilder/rss_feeds.html

Give that a try and let me know if you run into any issues.

Hope this helps.