Sometimes PHP GD library crashes and leaves a dummy page behind, sometimes the main page goes all blank if you have last uploads thumbnails there being created dynamically. So how do i check if there's enough assigned memory to perform GD execution before calling GD functions?

I think if an image is 1024x768 and has 16bits per pixel the required memory will be about 1,5 MB (12,5 Mb), the question is how do i know how many bits per pixel one image has no matter its format.

http://uk.php.net/manual/en/function...-get-usage.php - Gets the memory usage.

http://uk.php.net/manual/en/function...peak-usage.php - Max amount of memory allowed.

For for example:

PHP Code:

$estimated_amount_of_ram = 200;
if((memory_get_usage() + $estimated_amount_of_ram) >= memory_get_peak_usage()){
echo "Sorry not enough ram.";
} 


Not a great way to get people to help...

Have you considered multiplying the number of pixels by the number of bytes per pixel and then comparing that number to the amount available memory?

<sigh>

Originally Posted by VirtuosiMedia

<sigh>

I second that

Originally Posted by ehat

Lol, another Einstein...maybe now you can tell me where do i get the famous "bytes per pixel" value

Do your homework, and try to help yourself at least a minimum.
You don't find much more help if you are waiting for us to give you a code snippet.

VirtuosiMedia gave you everything you needed. If you don't understand the answer, ask for details and stop calling your helpers "yet another Einstein"

Originally Posted by tripy

stop calling your helpers "yet another Einstein"

Originally Posted by ehat

ok einsteins, nevermind reaaalllly

Argh! Well said tripy, your Talkupation++

Do not use GD to resize images, use ImageMagick