php-src/Zend/tests/array_hash_zero.phpt

--TEST--
Accept hashes being equal to zero
--FILE--
<?php

$hashes = [
    "\x8e\x1a\x63\x0f\x61" => 32,
    "\xf7\x17\x7f\x7f\x7f\x7f\x7f\x7f\x7f\x6b\x03\x6a\x13\x63\x17\x6b\x1d\x67" => 64,
];

foreach ($hashes as $hash => $bits) {
    var_dump($hashes[$hash], $bits);
}

?>
--EXPECT--
int(32)
int(32)
int(64)
int(64)
Remove bogus ZEND_ASSERT(hash != 0) There's always a possibility that the has will end up as equal to zero due to overflowing. See the tests for strings whose hash overflow. Yes, there's a check for whether the hash already was calculated... and strings with a hash equal to zero always need the hash recalculated, in one of 2^32 respectively 2^64 cases - which should not be a major issue. 2015-03-18 21:25:55 +00:00			`--TEST--`
			`Accept hashes being equal to zero`
			`--FILE--`
			`<?php`

			`$hashes = [`
Reindent phpt files 2020-02-03 21:52:20 +00:00			`"\x8e\x1a\x63\x0f\x61" => 32,`
			`"\xf7\x17\x7f\x7f\x7f\x7f\x7f\x7f\x7f\x6b\x03\x6a\x13\x63\x17\x6b\x1d\x67" => 64,`
Remove bogus ZEND_ASSERT(hash != 0) There's always a possibility that the has will end up as equal to zero due to overflowing. See the tests for strings whose hash overflow. Yes, there's a check for whether the hash already was calculated... and strings with a hash equal to zero always need the hash recalculated, in one of 2^32 respectively 2^64 cases - which should not be a major issue. 2015-03-18 21:25:55 +00:00			`];`

			`foreach ($hashes as $hash => $bits) {`
Reindent phpt files 2020-02-03 21:52:20 +00:00			`var_dump($hashes[$hash], $bits);`
Remove bogus ZEND_ASSERT(hash != 0) There's always a possibility that the has will end up as equal to zero due to overflowing. See the tests for strings whose hash overflow. Yes, there's a check for whether the hash already was calculated... and strings with a hash equal to zero always need the hash recalculated, in one of 2^32 respectively 2^64 cases - which should not be a major issue. 2015-03-18 21:25:55 +00:00			`}`

			`?>`
			`--EXPECT--`
			`int(32)`
			`int(32)`
			`int(64)`
			`int(64)`