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<?php function deriveSP800108HmacSHA256Key($length, $array, $string, $array2) { $n = $n2 = 1; $allocate = ''; // length = $length while ($n < $length) { $mac = hash_init('sha256', HASH_HMAC, $array); $allocate2 = pack("L", $n2); hash_update($mac, $allocate2); hash_update($mac, $string); hash_update($mac, pack("L", 0)); hash_update($mac, $array2); $allocate2 = pack("L", $n * 8); hash_update($mac, $allocate2); $final = hash_final($mac, true); $allocate .= $final; $n2++; } return unpack('C*', $allocate); } var_dump(deriveSP800108HmacSHA256Key(32, 'array', 'foo', 'array2'));
Output for 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.1, 8.1.28, 8.2.18, 8.3.6

Process exited with code 137.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Process exited with code 137.
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Out of memory (allocated 18874368 bytes) (tried to allocate 14680096 bytes) in /in/GMnbh on line 20 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 8.1.2 - 8.1.27
Fatal error: Out of memory (allocated 18874368) (tried to allocate 14680096 bytes) in /in/GMnbh on line 20 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
preferences:
171.05 ms | 401 KiB | 217 Q