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ini_set	memory_get_usage

PHP Options/Info Functions	Last updated: Mon, 26 Oct 2026

memory_get_peak_usage

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

memory_get_peak_usage — Returns the peak of memory allocated by PHP

Description

function memory_get_peak_usage(bool $real_usage = false): int

Returns the peak of memory, in bytes, that's been allocated to your PHP script.

Parameters

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.

Return Values

Returns the memory peak in bytes.

See Also

memory_get_usage() - Returns the amount of memory allocated to the PHP script, or reserved from the system by PHP's memory manager
memory_reset_peak_usage() - Reset the peak memory usage
memory_limit

ini_set	memory_get_usage

PHP Options/Info Functions	Last updated: Mon, 26 Oct 2026