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Homephp教程PHP源码用PHP将一个数组存到数据库的一个字段的方法

在工作项目中有一个需求,要把数一些数据转成数组,然后再存到数库库一个字段中,个人目前知道两种方法,一种是用序列化函数serialize($arr);,还有一种是用php的json扩展自带的函数json_encode($arr);。

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要把数一个数组,存到数据库的一个字段中,有两种方法,一种是用序列化函数serialize($arr);还有一种是用php的json扩展自带的函数json_encode($arr);如果json_encode对含有中文的字符进行编码时,会自动转换成unicode编码。就像这样:a:2:{s:4:”code”;s:1:”1″;s:3:”msg”;s:9:”PHP日志”;},虽然js上能正常处理,但是看起来还是不那爽,在PHP的官方网站上面找到一个函数,可以解决这个问题,也就是将数据转换json,而且中文不会被转换为unicode码。

 代码如下 复制代码
function php2js($a=false)
{
  if (is_null($a)) return 'null';
  if ($a === false) return 'false';
  if ($a === true) return 'true';
  if (is_scalar($a))
  {
    if (is_float($a))
    {
      // Always use "." for floats.
      $a = str_replace(",", ".", strval($a));
    }

    // All scalars are converted to strings to avoid indeterminism.
    // PHP's "1" and 1 are equal for all PHP operators, but
    // JS's "1" and 1 are not. So if we pass "1" or 1 from the PHP backend,
    // we should get the same result in the JS frontend (string).
    // Character replacements for JSON.
    static $jsonReplaces = array(array("", "/", "n", "t", "r", "b", "f", '"'),
    array('\', '/', 'n', 't', 'r', 'b', 'f', '"'));
    return '"' . str_replace($jsonReplaces[0], $jsonReplaces[1], $a) . '"';
  }
  $isList = true;
  for ($i = 0, reset($a); $i   {
    if (key($a) !== $i)
    {
      $isList = false;
      break;
    }
  }
  $result = array();
  if ($isList)
  {
    foreach ($a as $v) $result[] = php2js($v);
    return '[ ' . join(', ', $result) . ' ]';
  }
  else
  {
    foreach ($a as $k => $v) $result[] = php2js($k).': '.php2js($v);
    return '{ ' . join(', ', $result) . ' }';
  }
}
?>





使用方法一:

echo serialize(array(‘code’=>’1′,’msg’=>’PHP日志’));
输出:a:2:{s:4:”code”;s:1:”1″;s:3:”msg”;s:9:”PHP日志”;}

使用方法二:

echo json_encode(array(‘code’=>’1′,’msg’=>’PHP日志’));
输出:{“code”:”1″,”msg”:”PHPu65e5u5fd7″}

使用方法三:

echo php2js(array(‘code’=>’1′,’msg’=>’未知错误’));
输出:{ “code”: “1”, “msg”: “PHP日志” }

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