memory_get_usage

Description

Returns the amount of memory, in bytes, that's currently being allocated to your PHP script.

memory_get_usage() will only be defined if your PHP is compiled with the --enable-memory-limit configuration option.

例子 1. A memory_get_usage() example <?php // This is only an example, the numbers below will // differ depending on your system echo memory_get_usage() . "\n"; // 36640 $a = str_repeat("Hello", 4242); echo memory_get_usage() . "\n"; // 57960 unset($a); echo memory_get_usage() . "\n"; // 36744 ?>

See also memory_limit.