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json_encode 函数中文被编码成 null的解决办法

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Release: 2016-06-20 12:32:40
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<?php$arr = array(‘Name’=>’希亚’,‘Age’=>20);$jsonencode = json_encode($arr);echo $jsonencode;?>
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程序运行结果如下:

<?php{“Name”:null,”Age”:20}json_encode 函数中中文被编码成 null 了,Google 了一下,很简单,为了与前端紧密结合,Json 只支持 utf-8 编码,我认为是前端的 JavaScript 也是 utf-8 的原因。[php] view plaincopyprint?<?php$array = array(‘title’=>iconv(‘gb2312′,’utf-8′,’这里是中文标题’),‘body’=>’abcd…’);echo json_encode($array);?>
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这个程序的运行结果为:

{“title”:”\u8fd9\u91cc\u662f\u4e2d\u6587\u6807\u9898″,”body”:”abcd…”}

数 组中所有中文在json_encode之后都不见了或者出现\u2353等。解决方法是用urlencode()函数处理以下,在json_encode 之前,把所有数组内所有内容都用urlencode()处理一下,然用json_encode()转换成json字符串,最后再用urldecode() 将编码过的中文转回来。

<?php/**************************************************************** 使用特定function对数组中所有元素做处理* @param string &$array 要处理的字符串* @param string $function 要执行的函数* @return boolean $apply_to_keys_also 是否也应用到key上* @access public**************************************************************/function arrayRecursive(&$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–;}/**************************************************************** 将数组转换为JSON字符串(兼容中文)* @param array $array 要转换的数组* @return string 转换得到的json字符串* @access public**************************************************************/function JSON($array) {arrayRecursive($array, ‘urlencode’, true);$json = json_encode($array);return urldecode($json);}$array = array(‘Name’=>’希亚’,‘Age’=>20);echo JSON($array);?>
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这次成功了,运行结果如下:

{“Name”:”希亚”,”Age”:”20″}

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