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Home Backend Development PHP Tutorial php数组转json显示中文的一句代码,求解释

php数组转json显示中文的一句代码,求解释

Jun 23, 2016 pm 02:12 PM

本帖最后由 wang23412 于 2013-06-09 17:05:27 编辑

PHP JSON 中文 编码

我用php把数组转成json格式传给jquery 时发现中文会变成奇怪的编码。于是在网上找了下解决方法,看到很多人用下面两个函数解决了:
function arrayRecursive(&$array, $function, $apply_to_keys_also = false){    static $recursive_counter = 0;    if (++$recursive_counter > 1000) {        die('possible deep recursion attack');    }    foreach ($array as $key => $value) {        if (is_array($value)) {            arrayRecursive($array[$key], $function, $apply_to_keys_also);        } else {            $array[$key] = $function($value);        }        if ($apply_to_keys_also && is_string($key)) {            $new_key = $function($key);            if ($new_key != $key) {                $array[$new_key] = $array[$key];                unset($array[$key]);            }        }    }    $recursive_counter--;}
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function JSON($array) { arrayRecursive($array, 'urlencode', true); $json = json_encode($array); return urldecode($json);}
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我测试了下确实能解决问题,于是仔细研究了下代码,发现如下这句代码不知道是什么意思:
$array[$key] = $function($value);
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我在这句话前后分别输出$array[$key]看下值,发现这句话把中文变成了一串编码。
求各位大侠解释下$function($value)是什么意思。

回复讨论(解决方案)

咳咳 你可以把‘$function’替换成传进去才参数$function的值再看

定义
function arrayRecursive(&$array,  $function, $apply_to_keys_also = false) 中
$array[$key] =  $function($value);

调用
arrayRecursive($array, ' urlencode', true);

所以 $array[$key] = $function($value);
就是 $array[$key] = urlencode($value);

呃。。好吧。。是传进来的参数。。我低端了……

定义
function arrayRecursive(&$array,  $function, $apply_to_keys_also = false) 中
$array[$key] =  $function($value);

调用
arrayRecursive($array, ' urlencode', true);

所以 $array[$key] = $function($value);
就是 $array[$key] = urlencode($value);

这么看来这两个函数的作用就是先把数组中的每个值urlencode一下,然后json_encode转换成json格式,最后再把json格式的字符串urldecode。谢谢啦。真是看代码看得脑袋都转不过弯了

这个函数是针对 gbk 编码数据的
对于 utf-8 的数据,应该是不需要这样做的

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