memory_get_usage
(PHP 4 >= 4.3.2, PHP 5, PHP 7, PHP 8)
memory_get_usage — Returns the amount of memory allocated to PHP
Beschreibung
memory_get_usage(bool
$real_usage = false): intReturns the amount of memory, in bytes, that's currently being allocated to your PHP script.
Parameter-Liste
-
real_usage -
Set this to
trueto get total memory allocated from system, including unused pages. If not set orfalseonly the used memory is reported.
Hinweis:
PHP does not track memory that is not allocated by
emalloc()
Rückgabewerte
Returns the memory amount in bytes.
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
?>
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