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memory_get_usage

memory_get_usage

(PHP 4 >= 4.3.2, PHP 5)

memory_get_usage -- Returns the amount of memory allocated to PHP

Opis

int memory_get_usage ( [bool real_usage] )

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.

Parametry

real_usage

Set this to TRUE to get the real size of memory allocated from system. If not set or FALSE only the memory used by emalloc() is reported.

Zwracane wartości

Returns the memory amount in bytes.

Rejestr zmian

WersjaOpis
5.2.0 real_usage was added.

Przykłady

Przykład 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

?>