本文整理汇总了PHP中lcg_value函数的典型用法代码示例。如果您正苦于以下问题：PHP lcg_value函数的具体用法？PHP lcg_value怎么用？PHP lcg_value使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了lcg_value函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: onActivate
public function onActivate(Level $level, Player $player, Block $block, Block $target, $face, $fx, $fy, $fz)
{
$entity = null;
$chunk = $level->getChunk($block->getX() >> 4, $block->getZ() >> 4);
if (!$chunk instanceof FullChunk) {
return false;
}
$nbt = new Compound("", ["Pos" => new Enum("Pos", [new Double("", $block->getX() + 0.5), new Double("", $block->getY()), new Double("", $block->getZ() + 0.5)]), "Motion" => new Enum("Motion", [new Double("", 0), new Double("", 0), new Double("", 0)]), "Rotation" => new Enum("Rotation", [new Float("", lcg_value() * 360), new Float("", 0)])]);
$entity = Entity::createEntity($this->meta, $chunk, $nbt);
if ($entity instanceof Entity) {
if ($player->isSurvival()) {
--$this->count;
}
$entity->spawnToAll();
return true;
}
return false;
}示例2: onActivate
public function onActivate(Level $level, Player $player, Block $block, Block $target, $face, $fx, $fy, $fz)
{
if ($target->getId() == Block::MONSTER_SPAWNER) {
return true;
} else {
$entity = null;
$chunk = $level->getChunk($block->getX() >> 4, $block->getZ() >> 4);
if (!$chunk instanceof FullChunk) {
return false;
}
$nbt = new CompoundTag("", ["Pos" => new EnumTag("Pos", [new DoubleTag("", $block->getX() + 0.5), new DoubleTag("", $block->getY()), new DoubleTag("", $block->getZ() + 0.5)]), "Motion" => new EnumTag("Motion", [new DoubleTag("", 0), new DoubleTag("", 0), new DoubleTag("", 0)]), "Rotation" => new EnumTag("Rotation", [new FloatTag("", lcg_value() * 360), new FloatTag("", 0)])]);
if ($this->hasCustomName()) {
$nbt->CustomName = new StringTag("CustomName", $this->getCustomName());
}
$entity = Entity::createEntity($this->meta, $chunk, $nbt);
if ($entity instanceof Entity) {
if ($player->isSurvival()) {
--$this->count;
}
$entity->spawnToAll();
return true;
}
}
return false;
}示例3: __construct
/**
* Constructs the object
* @param string $query The query
* @param string $query The query before the redirect (e.g. oprobiu before the automatic redirect to oprobriu)
* @param int $searchType The seach type
* @param boolean $redirect If true, then the result is a redirect [OPTIONAL]
* @param Definition[] $results The results [OPTIONAL]
* @access public
* @return void
**/
public function __construct($query, $queryBeforeRedirect, $searchType, $redirect = false, &$results = null)
{
if (!Config::get('global.logSearch') || lcg_value() > Config::get('global.logSampling')) {
$this->query = null;
return false;
}
$this->query = $query;
$this->queryBeforeRedirect = $queryBeforeRedirect;
$this->searchType = $searchType;
if (session_variableExists('user')) {
$this->registeredUser = 'y';
$this->preferences = $_SESSION['user']->preferences;
} else {
$this->registeredUser = 'n';
$this->preferences = session_getCookieSetting('anonymousPrefs');
}
$this->skin = session_getSkin();
$this->resultCount = count($results);
$this->redirect = $redirect ? 'y' : 'n';
$this->resultList = '';
if ($results != null) {
$numResultsToLog = min(count($results), Config::get('global.logResults'));
$this->resultList = '';
for ($i = 0; $i < $numResultsToLog; $i++) {
$this->resultList .= ($this->resultList ? ',' : '') . $results[$i]->id;
}
}
}示例4: sa
function sa($members)
{
$T = 100.0;
$now_temp = 10000;
$n = count($members);
$status = 0;
$best = 1000000000;
while ($T > 0) {
do {
$t1 = rand(0, $n - 1);
$t2 = rand(0, $n - 1);
} while ($t1 == $t2);
$now = sqr(abs($members[$t1]['chosen1'] - $t1)) + sqr(abs($members[$t2]['chosen1'] - $t2));
$new = sqr(abs($members[$t1]['chosen1'] - $t2)) + sqr(abs($members[$t2]['chosen1'] - $t1));
if ($new < $now || lcg_value() <= exp(($now - $new) / $T)) {
$temp = $members[$t1];
$members[$t1] = $members[$t2];
$members[$t2] = $temp;
$status += $new - $now;
if ($status < $best) {
$res = $members;
}
}
$T -= 0.02;
}
return $res;
}示例5: generate
public static function generate($length = 10, $charlist = '0-9a-z')
{
$charlist = str_shuffle(preg_replace_callback('#.-.#', function ($m) {
return implode('', range($m[0][0], $m[0][2]));
}, $charlist));
$chLen = strlen($charlist);
if (function_exists('openssl_random_pseudo_bytes') && (PHP_VERSION_ID >= 50400 || !defined('PHP_WINDOWS_VERSION_BUILD'))) {
$rand3 = openssl_random_pseudo_bytes($length);
}
if (empty($rand3) && function_exists('mcrypt_create_iv') && (PHP_VERSION_ID >= 50307 || !defined('PHP_WINDOWS_VERSION_BUILD'))) {
// PHP bug #52523
$rand3 = mcrypt_create_iv($length, MCRYPT_DEV_URANDOM);
}
if (empty($rand3) && @is_readable('/dev/urandom')) {
$rand3 = file_get_contents('/dev/urandom', false, null, -1, $length);
}
if (empty($rand3)) {
static $cache;
$rand3 = $cache ?: ($cache = md5(serialize($_SERVER), true));
}
$s = '';
$rand = null;
$rand2 = null;
for ($i = 0; $i < $length; $i++) {
if ($i % 5 === 0) {
list($rand, $rand2) = explode(' ', microtime());
$rand += lcg_value();
}
$rand *= $chLen;
$s .= $charlist[($rand + $rand2 + ord($rand3[$i % strlen($rand3)])) % $chLen];
$rand -= (int) $rand;
}
return $s;
}示例6: createBundleMock
/**
* @return BundleInterface|\PHPUnit_Framework_MockObject_MockObject
*/
private function createBundleMock()
{
$bundleMock = $this->getMock('Symfony\\Component\\HttpKernel\\Bundle\\BundleInterface');
$bundleMock->expects($this->any())->method('getNamespace')->will($this->returnValue('Sonata\\AdminBundle\\Tests\\Fixtures'));
$bundleMock->expects($this->any())->method('getPath')->will($this->returnValue(sprintf('%s/%s', sys_get_temp_dir(), lcg_value())));
return $bundleMock;
}示例7: random_float
function random_float($min, $max)
{
$val = round($min + lcg_value() * abs($max - $min), 3);
$bal = round(fmod($val, 0.005), 3);
$val = $val - $bal;
echo $val;
}示例8: generateId
/**
* Генерация ид с жизнью до 35 лет для signed и 70 unsigned
*
* @param int $id
* Идентификатор, по которому идет парцирование данных, если не указан,
* то выбирается случайное число
* @return int
*/
protected static function generateId($id = 0)
{
// Пытаемся получить метку и сгенерировать ид
if ($epoch = config('common.epoch')) {
return (floor(microtime(true) * 1000 - $epoch) << 23) + (mt_rand(0, 4095) << 13) + ($id ? $id : lcg_value() * 10000000) % 1024;
}
return 0;
}示例9: __construct
/**
* Initializes a new instance of this class.
*
* @param float $min The minimum value.
* @param float $max The maximum value.
* @param float $decimals The amount of decimals to round to.
*/
public function __construct($min = 0.0, $max = 1.0, $decimals = 0)
{
$value = $min + lcg_value() * abs($max - $min);
if ($decimals != 0) {
$value = round($value, $decimals);
}
parent::__construct($value);
}示例10: getRandNumber
function getRandNumber($min, $max)
{
if ($min > $max) {
$temp = $min;
$min = $max;
$max = $temp;
}
return $min + lcg_value() * abs($max - $min);
}示例11: generate
/**
* Generate random string.
* @param int
* @param string
* @return string
*/
public static function generate($length = 10, $charlist = '0-9a-z')
{
$charlist = count_chars(preg_replace_callback('#.-.#', function ($m) {
return implode('', range($m[0][0], $m[0][2]));
}, $charlist), 3);
$chLen = strlen($charlist);
if ($length < 1) {
return ''; // mcrypt_create_iv does not support zero length
} elseif ($chLen < 2) {
return str_repeat($charlist, $length); // random_int does not support empty interval
}
$res = '';
if (PHP_VERSION_ID >= 70000) {
for ($i = 0; $i < $length; $i++) {
$res .= $charlist[random_int(0, $chLen - 1)];
}
return $res;
}
$windows = defined('PHP_WINDOWS_VERSION_BUILD');
$bytes = '';
if (function_exists('openssl_random_pseudo_bytes')
&& (PHP_VERSION_ID >= 50400 || !defined('PHP_WINDOWS_VERSION_BUILD')) // slow in PHP 5.3 & Windows
) {
$bytes = openssl_random_pseudo_bytes($length, $secure);
if (!$secure) {
$bytes = '';
}
}
if (strlen($bytes) < $length && function_exists('mcrypt_create_iv') && (PHP_VERSION_ID >= 50307 || !$windows)) { // PHP bug #52523
$bytes = mcrypt_create_iv($length, MCRYPT_DEV_URANDOM);
}
if (strlen($bytes) < $length && !$windows && @is_readable('/dev/urandom')) {
$bytes = file_get_contents('/dev/urandom', FALSE, NULL, -1, $length);
}
if (strlen($bytes) < $length) {
$rand3 = md5(serialize($_SERVER), TRUE);
$charlist = str_shuffle($charlist);
for ($i = 0; $i < $length; $i++) {
if ($i % 5 === 0) {
list($rand1, $rand2) = explode(' ', microtime());
$rand1 += lcg_value();
}
$rand1 *= $chLen;
$res .= $charlist[($rand1 + $rand2 + ord($rand3[$i % strlen($rand3)])) % $chLen];
$rand1 -= (int) $rand1;
}
return $res;
}
for ($i = 0; $i < $length; $i++) {
$res .= $charlist[($i + ord($bytes[$i])) % $chLen];
}
return $res;
}示例12: dropExpOrb__api200
public static function dropExpOrb__api200(Position $source, $exp = 1, Vector3 $motion = \null, $delay = 40)
{
$motion = $motion === \null ? new Vector3(\lcg_value() * 0.2 - 0.1, 0.4, \lcg_value() * 0.2 - 0.1) : $motion;
$entity = Entity::createEntity("ExperienceOrb", $source->getLevel()->getChunk($source->getX() >> 4, $source->getZ() >> 4, \true), new \pocketmine\nbt\tag\CompoundTag("", ["Pos" => new \pocketmine\nbt\tag\ListTag("Pos", [new \pocketmine\nbt\tag\DoubleTag("", $source->getX()), new \pocketmine\nbt\tag\DoubleTag("", $source->getY()), new \pocketmine\nbt\tag\DoubleTag("", $source->getZ())]), "Motion" => new \pocketmine\nbt\tag\ListTag("Motion", [new \pocketmine\nbt\tag\DoubleTag("", $motion->x), new \pocketmine\nbt\tag\DoubleTag("", $motion->y), new \pocketmine\nbt\tag\DoubleTag("", $motion->z)]), "Rotation" => new \pocketmine\nbt\tag\ListTag("Rotation", [new \pocketmine\nbt\tag\FloatTag("", \lcg_value() * 360), new \pocketmine\nbt\tag\FloatTag("", 0)]), "Health" => new \pocketmine\nbt\tag\ShortTag("Health", 20), "PickupDelay" => new \pocketmine\nbt\tag\ShortTag("PickupDelay", $delay)]));
if ($entity instanceof ExperienceOrb) {
$entity->setExp($exp);
}
$entity->spawnToAll();
}示例13: randomBytes
function randomBytes($length = 16, $secure = true, $raw = true, $startEntropy = "", &$rounds = 0, &$drop = 0)
{
static $lastRandom = "";
$output = "";
$length = abs((int) $length);
$secureValue = "";
$rounds = 0;
$drop = 0;
while (!isset($output[$length - 1])) {
//some entropy, but works ^^
$weakEntropy = array(is_array($startEntropy) ? implode($startEntropy) : $startEntropy, serialize(stat(__FILE__)), __DIR__, PHP_OS, microtime(), (string) lcg_value(), (string) PHP_MAXPATHLEN, PHP_SAPI, (string) PHP_INT_MAX . "." . PHP_INT_SIZE, serialize($_SERVER), serialize(get_defined_constants()), get_current_user(), serialize(ini_get_all()), (string) memory_get_usage() . "." . memory_get_peak_usage(), php_uname(), phpversion(), extension_loaded("gmp") ? gmp_strval(gmp_random(4)) : microtime(), zend_version(), (string) getmypid(), (string) getmyuid(), (string) mt_rand(), (string) getmyinode(), (string) getmygid(), (string) rand(), function_exists("zend_thread_id") ? (string) zend_thread_id() : microtime(), var_export(@get_browser(), true), function_exists("getrusage") ? @implode(getrusage()) : microtime(), function_exists("sys_getloadavg") ? @implode(sys_getloadavg()) : microtime(), serialize(get_loaded_extensions()), sys_get_temp_dir(), (string) disk_free_space("."), (string) disk_total_space("."), uniqid(microtime(), true), file_exists("/proc/cpuinfo") ? file_get_contents("/proc/cpuinfo") : microtime());
shuffle($weakEntropy);
$value = hash("sha512", implode($weakEntropy), true);
$lastRandom .= $value;
foreach ($weakEntropy as $k => $c) {
//mixing entropy values with XOR and hash randomness extractor
$value ^= hash("sha256", $c . microtime() . $k, true) . hash("sha256", mt_rand() . microtime() . $k . $c, true);
$value ^= hash("sha512", (string) lcg_value() . $c . microtime() . $k, true);
}
unset($weakEntropy);
if ($secure === true) {
$strongEntropyValues = array(is_array($startEntropy) ? hash("sha512", $startEntropy[($rounds + $drop) % count($startEntropy)], true) : hash("sha512", $startEntropy, true), file_exists("/dev/urandom") ? fread(fopen("/dev/urandom", "rb"), 64) : str_repeat("", 64), (function_exists("openssl_random_pseudo_bytes") and version_compare(PHP_VERSION, "5.3.4", ">=")) ? openssl_random_pseudo_bytes(64) : str_repeat("", 64), function_exists("mcrypt_create_iv") ? mcrypt_create_iv(64, MCRYPT_DEV_URANDOM) : str_repeat("", 64), $value);
$strongEntropy = array_pop($strongEntropyValues);
foreach ($strongEntropyValues as $value) {
$strongEntropy = $strongEntropy ^ $value;
}
$value = "";
//Von Neumann randomness extractor, increases entropy
$bitcnt = 0;
for ($j = 0; $j < 64; ++$j) {
$a = ord($strongEntropy[$j]);
for ($i = 0; $i < 8; $i += 2) {
$b = ($a & 1 << $i) > 0 ? 1 : 0;
if ($b != (($a & 1 << $i + 1) > 0 ? 1 : 0)) {
$secureValue |= $b << $bitcnt;
if ($bitcnt == 7) {
$value .= chr($secureValue);
$secureValue = 0;
$bitcnt = 0;
} else {
++$bitcnt;
}
++$drop;
} else {
$drop += 2;
}
}
}
}
$output .= substr($value, 0, min($length - strlen($output), $length));
unset($value);
++$rounds;
}
$lastRandom = hash("sha512", $lastRandom, true);
return $raw === false ? bin2hex($output) : $output;
}示例14: Neuron
public function Neuron($nInputs)
{
$this->numInputs = $nInputs;
for ($i = 0; $i < $nInputs + 1; $i++) {
// The last item of the array is to store the bias
// Initialize with random float between -1 and 1
$this->weights[] = lcg_value() * 2 - 1;
//$this->weights[] = rand();
}
}示例15: reset
public function reset()
{
// Random initial position
$this->posx = lcg_value() * $fieldmaxx;
$this->posy = lcg_value() * $fieldmaxy;
$this->lookatx = 0;
$this->lookaty = 0;
// Random initial rotation
$this->rotation = lcg_value() * pi();
$this->fitness = 0;
}