memory_get_peak_usage
php_ini_loaded_file
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PHP Manual

# memory_get_usage

(PHP 4 >= 4.3.2, PHP 5)

memory_get_usage — Returns the amount of memory allocated to PHP

### 설명

int memory_get_usage ([ bool `$real_usage`= false ] )

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

### 인수

`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.

### 반환값

Returns the memory amount in bytes.

### 변경점

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

### 예제

Example #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
?>`

### 참고

- memory_get_peak_usage() - Returns the peak of memory allocated by PHP
- memory_limit

memory_get_peak_usage
php_ini_loaded_file
PHP Options/Info 함수 목록
PHP Manual