javascript - 关于PHP处理JSON的问题。
<code>$array = ['a'=>'b','b'=>'c','d'=>function(){ return 'e'; }]; echo json_encode($array); </code>
生成的JSON 如下 {"a":"b","b":"c","d":{}}
有没有什么办法使生成的结果中可以使用 JS的 匿名函数?
好多JS库的配置都是JSON的,但是他的配置有些使用的匿名函数来返回结果,这时候从服务端发回配置的时候,正常的
key-value配置转JSON可爽了,可是碰到JS的匿名方法就玩脱了。。。。
其实我就要这样的....
<code>var jsonText = { title: '提示', content: '按钮回调函数返回 false 则不许关闭', okValue: '确定', ok: function () { this.title('提交中…'); return false; }, cancelValue: '取消', cancel: function () {} };</code>
然而生成的却是
<code>{"title":"\u63d0\u793a","okValue":"\u786e\u5b9a","ok":"function(){return \"\u63d0\u4ea4\u4e2d...\";}"}</code>
其中匿名方法,如你所见,被转成字符串了,玩脱了。。。
根据楼下兄弟的提点,完整的解决办法如下
<code>$data = ['title'=>'提示','okValue'=>'确定','ok'=>'function(){return "提交中...";}']; $json = json_encode($data); $json = str_replace(['"function','}"'],['function','}'], $json); echo $json;</code>
生成的json如下
<code>{"title":"\u63d0\u793a","okValue":"\u786e\u5b9a","ok":function(){return \"\u63d0\u4ea4\u4e2d...\";}}</code>
回复内容:
<code>$array = ['a'=>'b','b'=>'c','d'=>function(){ return 'e'; }]; echo json_encode($array); </code>
生成的JSON 如下 {"a":"b","b":"c","d":{}}
有没有什么办法使生成的结果中可以使用 JS的 匿名函数?
好多JS库的配置都是JSON的,但是他的配置有些使用的匿名函数来返回结果,这时候从服务端发回配置的时候,正常的
key-value配置转JSON可爽了,可是碰到JS的匿名方法就玩脱了。。。。
其实我就要这样的....
<code>var jsonText = { title: '提示', content: '按钮回调函数返回 false 则不许关闭', okValue: '确定', ok: function () { this.title('提交中…'); return false; }, cancelValue: '取消', cancel: function () {} };</code>
然而生成的却是
<code>{"title":"\u63d0\u793a","okValue":"\u786e\u5b9a","ok":"function(){return \"\u63d0\u4ea4\u4e2d...\";}"}</code>
其中匿名方法,如你所见,被转成字符串了,玩脱了。。。
根据楼下兄弟的提点,完整的解决办法如下
<code>$data = ['title'=>'提示','okValue'=>'确定','ok'=>'function(){return "提交中...";}']; $json = json_encode($data); $json = str_replace(['"function','}"'],['function','}'], $json); echo $json;</code>
生成的json如下
<code>{"title":"\u63d0\u793a","okValue":"\u786e\u5b9a","ok":function(){return \"\u63d0\u4ea4\u4e2d...\";}}</code>
函数是无法通过json_encode方法来转换的,能转换的只有数据。你觉得这个简单的函数能帮你实现把php代码转为js代码的功能吗?
不过,其实还是有办法的,你这么搞
$array = ['a'=>'b','b'=>'c','d'=>'function(){return "e";}']; echo json_encode($array);
然后在js端eval
一下就好了
data = JSON.parse(json); data.d = eval(data.d);
更新
查看相关文档发现js如果遇到json的字符串是这种形式的function() {
,就会报语法错误。解决方法是把这一段去掉
$array = ['a'=>'b','b'=>'c','d'=>"return 'e'"]; echo json_encode($array);
然后在解析的时候用匿名函数去执行
function getVal(str) { return function () { return eval(str); }; } data = JSON.parse(json); data.d = getVal(data.d); console.log(data.d());

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