memory_get_usage

(PHP 4 >= 4.3.2, PHP 5, PHP 7)
Returns the amount of memory allocated to PHP
int memory_get_usage ([ bool $real_usage = false ] )

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

Parameters:
real_usage

Set this to TRUE to get total memory allocated from system, including unused pages. If not set or FALSE only the used memory is reported.

Returns:

Returns the memory amount in bytes.

Changelog:
5.2.1

Compiling with --enable-memory-limit is no longer required for this function to exist.

5.2.0

real_usage

Examples:
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_get_peak_usage() -

memory_limit -

doc_php
2016-02-24 15:54:02
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