Getting memory usage

Get memory usage in bytes: memory_get_usage()

Sometimes you need to calculate or track the memory used by your running script.

The memory_get_usage() function has a boolean parameter. The default is false. With the default value (false), you can get the number of bytes used by your script. With the parameter set to true you get the bytes pre-allocated for memory pages.

$mem = memory_get_usage();
$mem = memory_get_usage(true);