FFI::memcmp
(PHP 7 >= 7.4.0, PHP 8)
FFI::memcmp — Compares memory areas
Descrizione
Compares size bytes from the memory areas ptr1 and
ptr2. Both ptr1 and ptr2
can be any native data structures (FFI\CData) or PHP
strings.
Elenco dei parametri
-
ptr1 -
The start of one memory area.
-
ptr2 -
The start of another memory area.
-
size -
The number of bytes to compare.
Valori restituiti
Returns a value less than 0 if the contents of the memory area starting at ptr1
are considered less than the contents of the memory area starting at ptr2,
a value greater than 0 if the contents of the first memory area are considered greater than the second,
and 0 if they are equal.
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