Is there a way I get the size of a PHP variable in bytes?

Question

I currently have a PHP CLI script using Zend Framework extensively which seems to be using a ever larger amount of memory as it runs. It loops through a large set of models retrieved from a database in batches of 1000. Calls to memory_get_usage() show that the memory usage of the script is always increasing.

This is despite making sure that I'm unsetting the model after every iteration and actually using array_shift() to reduce the size of the array of models on every iteration.

My question is, in PHP is there a way of discovering the size-in-memory of a variable so I can track what's growing?

Answer 1

i don't have a solution to check the size of every variable, but if you use doctrine its probably the reason

you need to use

   $Elem->free(true);

another thing is to upgrade to 5.3 (if you dont do it yet), the garbage collector of 5.3 is better