Question

不确定我做错了什么，但这个错误让我很生气。我一直得到“fseek（）：提供的参数不是一个有效的流资源”错误来自下面这些代码：

public function _geoip_seek_country($ipnum) {
    $offset = 0;
    for ($depth = 31; $depth >= 0; $depth--) {
        if ($this->flags & $this->GEOIP_MEMORY_CACHE) {
            $enc = mb_internal_encoding();
            mb_internal_encoding('ISO-8859-1');

            $buf = substr($this->memory_buffer,
                2 * $this->record_length * $offset,
                2 * $this->record_length);

            mb_internal_encoding($enc);
        } elseif ($this->flags & $this->GEOIP_SHARED_MEMORY) {
            $buf = @shmop_read ($this->shmid,
                2 * $this->record_length * $offset,
                2 * $this->record_length );
        } else {
      fseek($this->filehandle, 2 * $this->record_length * $offset, SEEK_SET) == 0
                or die("fseek failed");
            $buf = fread($this->filehandle, 2 * $this->record_length);
        }
        $x = array(0,0);
        for ($i = 0; $i < 2; ++$i) {
            for ($j = 0; $j < $this->record_length; ++$j) {
                $x[$i] += ord($buf[$this->record_length * $i + $j]) << ($j * 8);
            }
        }
        if ($ipnum & (1 << $depth)) {
            if ($x[1] >= $this->databaseSegments) {
                return $x[1];
            }
            $offset = $x[1];
        } else {
            if ($x[0] >= $this->databaseSegments) {
                return $x[0];
            }
            $offset = $x[0];
        }
    }
    trigger_error("error traversing database - perhaps it is corrupt?", E_USER_ERROR);
    return false;
}

该文件确实存在并将权限设置为777.

$this->filehandle = fopen($filename,"rb"))

已经是真的。不知道为什么一直说

提供的参数不是有效的流资源

Answer 1

尝试检查资源的$ gi-＆gt;文件句柄。但我认为你必须在此代码之前搜索问题

if (is_resource($gi->filehandle)) {
      fseek($this->filehandle, 2 * $this->record_length * $offset, SEEK_SET) == 0 or die("fseek failed");
      $buf = fread($this->filehandle, 2 * $this->record_length);
}

fseek（）：提供的参数不是有效的流资源

1 个答案: