--TEST--
Hash: sha256 algorithm
--FILE--
<?php
echo hash('sha256', '') . "\n";
echo hash('sha256', 'a') . "\n";
echo hash('sha256', '012345678901234567890123456789012345678901234567890123456789') . "\n";

/* FIPS-180 Vectors */
echo hash('sha256', 'abc') . "\n";
echo hash('sha256', 'abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq') . "\n";
echo hash('sha256', str_repeat('a', 1000000)) . "\n";
--EXPECT--
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb
5e43c8704ac81f33d701c1ace046ba9f257062b4d17e78f3254cbf243177e4f2
ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad
248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1
cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0