code: public function getCpuinfoByLsCpu()
      {
          if (!$this->cpuInfoByLsCpu) {
              $lscpu = shell_exec('lscpu');
              $lscpu = explode("\n", $lscpu);
              $values = [];
              foreach ($lscpu as $v) {
                  $v = array_map('trim', explode(':', $v));
                  if (isset($v[0], $v[1])) {
                      $values[$v[0]] = $v[1];
                  }
              }
              $this->cpuInfoByLsCpu = $values;
          }
          return $this->cpuInfoByLsCpu;
      }
docs: Get information about CPU using lscpu untility
  @return array