Php/docs/function.memory-get-usage
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memory_get_usage
(PHP 4 >= 4.3.2, PHP 5, PHP 7)
memory_get_usage — Returns the amount of memory allocated to PHP
Description
memory_get_usage
([ bool $real_usage = FALSE
] ) : int
Returns the amount of memory, in bytes, that's currently being allocated to your PHP script.
Parameters
real_usage- Set this to
TRUEto get total memory allocated from system, including unused pages. If not set orFALSEonly the used memory is reported.
Note:
PHP does not track memory that is not allocated by
emalloc()
Return Values
Returns the memory amount in bytes.
Examples
Example #1 A memory_get_usage() example
<?php// This is only an example, the numbers below will// differ depending on your systemecho memory_get_usage() . "\n"; // 36640$a = str_repeat("Hello", 4242);echo memory_get_usage() . "\n"; // 57960unset($a);echo memory_get_usage() . "\n"; // 36744?>
