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# memory_get_usage

(PHP 4 >= 4.3.2, PHP 5)

memory_get_usage -- Returns the amount of memory allocated to PHP

## Beschreibung

int memory_get_usage ( [bool real_usage] )

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

## Parameter Liste

`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.

## Rückgabewerte

Returns the memory amount in bytes.

## ChangeLog

Version | Beschreibung
--- | ---
5.2.1 | Compiling with --enable-memory-limit is no longer required for this function to exist.
5.2.0 | `real_usage` was added.

## Beispiele

Beispiel 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 ?>`

## Siehe auch

memory_get_peak_usage()
memory_limit

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