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Grr... array_sum() isn't working!

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Grr... array_sum() isn't working! Having problems with a PHP script you are coding? This is the place to get help!

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  #1  
Old May 31st, 2002, 06:18 AM
TheAltKey TheAltKey is offline
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Grr... array_sum() isn't working!
I get a repeating error which says "The argument to array_sum() should be an array". Is this somehow not an array? Arrrgh, what am I doing wrong?

php Code:
Original - php Code 
  1.  
  2. <?php
  3.  
  4. class DirectoryInfo { 
  5.  
  6. function get_dir_info($dir) { 
  7.  
  8. $handle = opendir($dir); 
  9. while( $file = readdir($handle) ) { 
  10.  
  11.     $d = "0";
  12.     $f = "0";
  13.  
  14.     if($file != '.' and $file != '..') {
  15.         if (is_dir("$dir/$file")) {
  16.             $this->get_dir_info("$dir/$file");
  17.             $dir_array[] = "$dir/$file";
  18.         } else {
  19.             $file_array[] = "$dir/$file";
  20.         }
  21.  
  22.     }
  23.     $totalfiles = array_sum("$file_array");
  24.     $totaldirs = array_sum("$dir_array");
  25. }
  26. echo "$totalfiles files in $totaldirs directories<BR>n";
  27.  
  28. }
  29.  
  30. }
  31.  
  32. $d = new DirectoryInfo;
  33.  
  34. echo $d->get_dir_info("./");
  35.  
  36. ?>


Thanks in advance for the info.
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  #2  
Old May 31st, 2002, 06:44 AM
Zoombie Zoombie is offline
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RE: Grr... array_sum() isn't working!
When you put a variable's name in quotes, it is automatically converted to a string. Look on php.net for info about type-juggling: http://www.php.net/manual/en/language.types.type-juggling.php
Basically, don't put quotes around a variable's name unless you want to convert it to a string.
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  #3  
Old May 31st, 2002, 07:10 AM
Anonymous Anonymous is offline
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RE: Grr... array_sum() isn't working!
I've tried it both ways and I still get the same error.
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  #4  
Old May 31st, 2002, 07:13 AM
TheAltKey TheAltKey is offline
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RE: Grr... array_sum() isn't working!
Oops... (^me)
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  #5  
Old May 31st, 2002, 09:09 AM
Zoombie Zoombie is offline
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RE: Grr... array_sum() isn't working!
I'm not sure what you're trying to do - are you trying to get the number of files and directories in a given path? If so, this code might help:
php Code:
Original - php Code 
  1.  
  2. <?php
  3. function getfilecount($path){
  4.     $handle = opendir($path);
  5.     while($file = readdir($handle)){
  6.         if(is_dir("$path/$file")){
  7.             $filecount++;
  8.         }else{
  9.             $dircount++;
  10.         }
  11.     }
  12.     closedir($handle);
  13.     return array($filecount,$dircount);
  14. }
  15.  
  16. list($filecount,$dircount) = getfilecount('./');
  17. echo "Found $filecount files and $dircount directories.";
  18. ?>
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  #6  
Old May 31st, 2002, 11:46 AM
TheAltKey TheAltKey is offline
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RE: Grr... array_sum() isn't working!
That's basically what I would like the script to do, but I want it to work recursively and count all files in all subfolders as well. I'm not sure how to do something like this though. Any ideas?

P.S. My thanks anyway for taking the time to help me out and post that code. ;)
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  #7  
Old May 31st, 2002, 06:50 PM
notepad notepad is offline
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RE: Grr... array_sum() isn't working!
i got some code that displays the contents of a directory and sub directory's along with the file sizes and adds them together.. i can post it here when i get home tonight.

i wrote it cause i host some peoples on my web server and needed to make sure they weren't exceeding their allowed space limit :-) here is an example if yer interested
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  #8  
Old May 31st, 2002, 07:13 PM
noda noda is offline
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RE: Grr... array_sum() isn't working!
There are quite a few things wrong...

1. As mentioned above, don't put quotes around the variable.
2. Change while ($file = readdir($handle)) to while (false !== ($file = readdir($handle))), as specified at php.net/readdir
3. $d = "0"; $f = "0" will do nothing.
4. Your function doesn't return anything, so echoing it will be useless.
5. It's always a good idea if you're using $array[] to put the line "$array = array();" before. This will get rid of errors when the directory is empty.
6. Set $totalfiles and $totaldirs outside the while() loop, so they only need to be set once instead of once per file.
7. Your recursion will not do what you expect it to do. In a moderately-sized tree, you'll get 50 lines of output.

Hope this helps
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  #9  
Old June 1st, 2002, 05:36 AM
Zoombie Zoombie is offline
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RE: Grr... array_sum() isn't working!
To display the files in all directories and subdirectories, you need to make a recursive function:
php Code:
Original - php Code 
  1.  
  2. <?php
  3. function getfilecount($path){
  4.     if(substr($path,-1) != '/'){
  5.         $path .= '/';
  6.     }
  7.     $handle = opendir($path);
  8.     while($file = readdir($path)){
  9.         if(is_dir("$path/$file")){
  10.             list($subdircount,$subfilecount) = getfilecount("$path/$file/");
  11.             $dircount += $subdircount+1;
  12.             $filecount += $subfilecount;
  13.         }else{
  14.             $filecount++;
  15.         }
  16.     }
  17.     return array($dircount,$filecount);
  18. }
  19. list($dircount,$filecount) = getfilecount('./');
  20. echo "Found $filecount files in $dircount directories.";
  21. ?>
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  #10  
Old June 1st, 2002, 06:16 AM
noda noda is offline
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RE: Grr... array_sum() isn't working!
Name a file "0" and your function won't work .

As it says on php.net/readdir, change
while ($file = readdir($dir))
to
while (false !== ($file = readdir($dir)))
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  #11  
Old June 2nd, 2002, 05:45 AM
Zoombie Zoombie is offline
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RE: Grr... array_sum() isn't working!
That's right...I never remember that little tidbit - I've never run into a file named "0." ; )
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  #12  
Old June 2nd, 2002, 10:27 AM
TheAltKey TheAltKey is offline
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RE: Grr... array_sum() isn't working!
Okay, I did some messing around and I decided to completely rewrite the code from scratch. Now I can get the number of files and directories, but the recursion doesn't seem to be working. In what version of PHP was this enabled? I'm using 4.0.0 and 4.