Exemplos de herosphp\utils HashUtils::BKDRHash em PHP

Exemplo n.º 1

Arquivo: ACache.class.php Projeto: cqmyg/herosphp2

 /**
  * 获取缓存文件路径
  * @param string $key
  * @param string $extension 缓存后缀
  * @return string
  */
 public function getCacheFile($key = null, $extension = '.cache')
 {
     $cacheDir = $this->configs['cache_dir'];
     /**
      * 1. 如果有传入了缓存key,则默认为公共缓存，缓存文件全部放入公共缓存中
      * 2. 如果key=null,则认为是模块的特殊缓存，按照模块将缓存分类
      */
     if ($key) {
         $dir = getHashCode($key) % self::$_FILE_OPACITY;
         $cacheDir .= "common/{$dir}/";
         return $cacheDir . "{$key}.cache";
     } else {
         $cacheDir .= $this->baseKey . '/';
         $filename = $this->baseKey;
         if ($this->ftype) {
             $cacheDir .= $this->ftype . '/';
             $filename .= '_' . $this->ftype;
         }
         if ($this->factor) {
             if (is_numeric($this->factor)) {
                 $cacheDir .= $this->factor % self::$_FILE_OPACITY . '/';
             } else {
                 $factor = HashUtils::BKDRHash($this->factor);
                 $cacheDir .= $factor % self::$_FILE_OPACITY . '/';
             }
             $filename .= '_' . $this->factor;
         }
         return $cacheDir . $filename . $extension;
     }
 }

Exemplo n.º 2

Arquivo: functions.core.php Projeto: yangjian102621/herosphp

/**
 * 计算字符串的hash值
 * @param string  $str
 * @return int
 */
function getHashCode($str)
{
    return \herosphp\utils\HashUtils::BKDRHash($str);
}