PHP 'Allowed memory size' odd error

[richrock]

I'm having real difficulty with something that should simply work... 

 

I've got a script that reads files within a specific folder defined elsewhere.  Then it returns the filenames (image files) to an array.  Relatively simple, you'd think...

 

Here's the process loop :

 

// Read directory for images
        @$dh  = opendir($img_dir);
        while (false !== (@$filename = readdir($dh))) {
            if (($filename == '.') || ($filename == '..') || ($filename == 'Thumbs.db')) {
            } else {
            $files[] = $filename;
            }
        }

 

There is a maximum of 4 images in each folder.  This process will run once per page load.

 

I have checked my php settings:

 

memory_limit   256M

post_max_size   64M

upload_max_filesize 62M (just for good measure).

 

IMHO 256m works for another site I developed which processes up to three images using imagemagick, and I've tested this with a 4mb png file too....

 

Yet I get this error :

 

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 35 bytes) in F:\html\bishopstrings\components\com_content\views\article\tmpl\default.php on line 43

 

This is telling me it's trying to allocate 35bytes when there is 268435456 bytes available... 

 

Yet this fails - any help 

[laanes]

I'm having real difficulty with something that should simply work... 

 

I've got a script that reads files within a specific folder defined elsewhere.  Then it returns the filenames (image files) to an array.  Relatively simple, you'd think...

 

Here's the process loop :

 

// Read directory for images
        @$dh  = opendir($img_dir);
        while (false !== (@$filename = readdir($dh))) {
            if (($filename == '.') || ($filename == '..') || ($filename == 'Thumbs.db')) {
            } else {
            $files[] = $filename;
            }
        }

 

There is a maximum of 4 images in each folder.  This process will run once per page load.

 

I have checked my php settings:

 

memory_limit   256M

post_max_size   64M

upload_max_filesize 62M (just for good measure).

 

IMHO 256m works for another site I developed which processes up to three images using imagemagick, and I've tested this with a 4mb png file too....

 

Yet I get this error :

 

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 35 bytes) in F:\html\bishopstrings\components\com_content\views\article\tmpl\default.php on line 43

 

This is telling me it's trying to allocate 35bytes when there is 268435456 bytes available... 

 

Yet this fails - any help 

 

Maybe an image name/size messes up the loop and makes it run over and over again until it fills up the memory?

[laanes]

What are the @'s standing for in your code?

 

@$dh  = opendir($img_dir);

 

while (false !== (@$filename = readdir($dh)))

[wildteen88]

Lannes: The @ symbol is used for error suppression.

 

richrock: For your script to consume 256MB of memory or more, I guess you have an infinity loop issue. What is line 43 in default.php?

[richrock]

Yes, it's an inifinity loop problem....

 

Line 43 is : $files[] = $filename;

 

I've tried this:

 

$dh  = opendir($img_dir) or die('Not found!');

exit;

 

And it's errored saying it can't find the folder, so I guess it's the wrong filepath.  I'll check that out and go from there.  Cheers!

[richrock]

Yup - stoopid filepaths    Thanks a lot for your help there!

[wildteen88]

Before using opendir check that the directory exists using is_dir. There ab example in the documentation for how to use opendir