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PHP Manual [memory_get_peak_usage]

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PHP Manual || PHP Options/Info Functions

(PHP 5 >= 5.2.0, PHP 7)

memory_get_peak_usageReturns the peak of memory allocated by PHP


memory_get_peak_usage ([ bool $real_usage = FALSE ] ) : int

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



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.


Version Description
5.2.1 Compiling with --enable-memory-limit is no longer required for this function to exist.
5.2.0 real_usage was added.

See Also

PHP Manual || PHP Options/Info Functions