FS#1671 Fatal error: Cannot redeclare is_mem_available() (prev. decl. in fetch.php:442) in common.php:1438

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• 

  2009-04-13 MarcF

  Hello,
  
  I've got this error:
  Fatal error: Cannot redeclare is_mem_available() (previously declared in /.../lib/exe/fetch.php:442) in /.../inc/common.php on line 1438
  
  The error shows up with the use of the gallery plug in while resizing the images with gdlibv2: no thumbnails, no images
  calling the URL "http://www.some-web-site.de/lib/exe/fetch.php/some-images.jpg?w=1200&h=800" directy leads to the "Fatal error:..."
  
  This bug may be related to #1633: "FS#1633 - resizing of *.png images doesn't work in 2009-02-14 any more "
  
  I use the actual version of DokuWike and the following plug ins:
  * acl
  * cacherevisionserase
  * config
  * displaywikipage
  * gallery
  * importoldchangelog
  * importoldindex
  * indexmenu
  * info
  * plugin
  * popularity
  * revert
  * usermanager
  
  Bug-Fix - works for my installation :-)
  
  /**
  * Checks if the given amount of memory is available
  *
  * If the memory_get_usage() function is not available the
  * function just assumes $bytes of already allocated memory
  *
  * @param  int $mem  Size of memory you want to allocate in bytes
  * @param  int $used already allocated memory (see above)
  * @author Filip Oscadal <webmaster@illusionsoftworks.cz>
  * @author Andreas Gohr <andi@splitbrain.org>
  */
  >>> new code
  if (!function_exists("is_mem_available"))
  {
  <<<
  function is_mem_available($mem,$bytes=1048576){
   $limit = trim(ini_get('memory_limit'));
   if(empty($limit)) return true; // no limit set!
  
   // parse limit to bytes
   $limit = php_to_byte($limit);
  
   // get used memory if possible
   if(function_exists('memory_get_usage')){
     $used = memory_get_usage();
   }
  
   if($used+$mem > $limit){
     return false;
   }
  
   return true;
  }
  >>> new code
  }
  <<<
• 

  2009-04-13 MarcF

  PS: I changed the code in "/.../lib/exe/fetch.php" near line 442.
• 

  2009-04-13 MarcF

  PS 2: Sorry, in a kind of confusing I mixed up two versions of fetch.php (fetch.php_2008-05-05 and fetch.php_2009-02-14)...
  I patched the fetch.php_2008-05-05 - and it works.
  
  With the actual version I get an Internal Server Error 500! It does not work, too.
  
  Sorry for confusing everybody but I wonder why I have had an old version of fetch.php on my server...
  
  I made some more testing - the actual fetch.php works fine with the "dokuwiki-128.png" file from the data/media/wiki folder but it doen't work with my jpg file.