Php JSON对象最大大小？

使用jquery，我能够使用ajax将json对象从客户端发送到服务器，如下所示：

var strJSON = '{"event":[{
    "dates":[
        "2009-10-14","2009-10-15"],
   "teams":[
        {"id":"0","country":"USA","state":"CA","name":"California Polytechnic State University","subteam":""},
        {"id":"1","country":"USA","state":"CA","name":"California State University, Bakersfield","subteam":""},
        {"id":"2","country":"USA","state":"CA","name":"California State University, Fresno","subteam":""},
        {"id":"3","country":"USA","state":"CA","name":"California State University, Fullerton","subteam":""}]
}]}';

$.ajax({
    url: '../ajax/save_event',
    type: 'POST',
    data: { data : strJSON },
    dataType: 'json',
    timeout: 8000,
    cache: false
});

它工作得很好。但是如果JSON字符串变得更大（不确定确切的大小，但大约大5倍），服务器接收到的$u POST数据是空的。有人知道为什么吗

我正在使用Apache/PHP/jquery。它发生在IE和Firefox上。是否有需要调整的配置设置

下面是一个字符串无法通过的示例：

{"events":[{"dates":["2009-10-10","2009-10-11","2009-10-12"],"divisions":[{"level":"Collegiate","name":"Varsity","subdivision":"Division I","rounds":[],"teams":[{"id":"0","country":"USA","state":"CA","name":"California Polytechnic State University","subteam":""},{"id":"1","country":"USA","state":"CA","name":"California State University, Bakersfield","subteam":""},{"id":"2","country":"USA","state":"CA","name":"California State University, Fresno","subteam":""},{"id":"3","country":"USA","state":"CA","name":"California State University, Fullerton","subteam":""},{"id":"4","country":"USA","state":"CA","name":"Stanford University","subteam":""},{"id":"5","country":"USA","state":"CA","name":"University of California, Davis","subteam":""},{"id":"6","country":"USA","state":"CA","name":"San Francisco State University","subteam":""},{"id":"7","country":"USA","state":"CA","name":"Lassen Community College","subteam":""},{"id":"8","country":"USA","state":"CA","name":"Menlo College","subteam":""},{"id":"9","country":"USA","state":"CA","name":"Fresno Pacific University","subteam":""},{"id":"10","country":"USA","state":"CA","name":"Bakersfield","subteam":""},{"id":"11","country":"USA","state":"CA","name":"Buchanan","subteam":""},{"id":"12","country":"USA","state":"CA","name":"Campolindo-Moraga","subteam":""},{"id":"13","country":"USA","state":"CA","name":"Fremont-Sunnyvale","subteam":""},{"id":"14","country":"USA","state":"CA","name":"Ponderosa-Shingle Springs","subteam":""},{"id":"15","country":"USA","state":"CA","name":"West Covina","subteam":""},{"id":"16","country":"USA","state":"CA","name":"Gilroy","subteam":""},{"id":"17","country":"USA","state":"CA","name":"San José State University","subteam":""},{"id":"18","country":"USA","state":"CA","name":"University of California, Los Angeles","subteam":""},{"id":"19","country":"USA","state":"CA","name":"Sierra College","subteam":""},{"id":"20","country":"USA","state":"CA","name":"Selma","subteam":""},{"id":"21","country":"USA","state":"CA","name":"Liberty","subteam":""}],}]}]}

它是使用json.org的“stringify”创建的：

编辑： 进一步调查后，我将数据类型改为“text”，并尝试发送一长串数字。它工作到大约3500个字符，然后阻塞（当我说“阻塞”时，我的意思是请求到达服务器时带有空$\u POST）

我的PHP post_max_大小是64M，所以不是这样。有人建议使用不在httpd.conf中的Apache的“LimitRequestBody”，因此我在其中添加了“LimitRequestBody 0”，并重新启动了Apache。那也没用

---

还有其他建议吗？

这可能是由于服务器的配置。检查php.ini中的设置

max_post_size

，确保它足够大，可以发布数据。还要检查您的web服务器设置-Apache有一个

LimitRequestBody

指令，它可能会导致您的问题。最后，检查您的web服务器和PHP错误日志，看看大帖子是否触发了任何错误。

在测试我的Json字符串时，似乎存在大小问题，当字符串很小时，一切正常，当我增加字符串（要编码的PHP数组）时，Json字符串的输出被切断

当对失败的字符串执行字符串长度时，我得到（7796）。因此，我将cli和apache的ini文件中的max post选项都更改为64M，而不是8M，我仍然遇到同样的问题。我不认为这个问题仅限于ApacheLimitRequestBody，因为php在CLI上提供相同的输出

还有一件事，当对编码的json字符串执行var_转储时，我可以看到它何时被切碎，json标记何时没有关闭，因此json解码器返回空值的原因

e、 g

---

您将看到字符串被截断的位置，并将零连接到输出的末尾

只是指向找到此页面的其他人的几个指针-我遇到了一个类似的问题，使用

jQuery.parseJSON（）

无法解析JSON字符串

我很难为情地说，我的问题（可能与OP的问题无关）实际上是由一个错误的引用引起的。逃避它解决了问题。我最初认为它与字符串长度有关，因为它似乎只发生在8000个字符长的JSON字符串上，但它是在错误的位置终止字符串的错误引号

蒂姆，我不知道你是否了解了你的原始版本，但是粘贴你提供的字符串：

{"events":[{"dates":["2009-10-10","2009-10-11","2009-10-12"],"divisions":[{"level":"Collegiate","name":"Varsity","subdivision":"Division I","rounds":[],"teams":[{"id":"0","country":"USA","state":"CA","name":"California Polytechnic State University","subteam":""},{"id":"1","country":"USA","state":"CA","name":"California State University, Bakersfield","subteam":""},{"id":"2","country":"USA","state":"CA","name":"California State University, Fresno","subteam":""},{"id":"3","country":"USA","state":"CA","name":"California State University, Fullerton","subteam":""},{"id":"4","country":"USA","state":"CA","name":"Stanford University","subteam":""},{"id":"5","country":"USA","state":"CA","name":"University of California, Davis","subteam":""},{"id":"6","country":"USA","state":"CA","name":"San Francisco State University","subteam":""},{"id":"7","country":"USA","state":"CA","name":"Lassen Community College","subteam":""},{"id":"8","country":"USA","state":"CA","name":"Menlo College","subteam":""},{"id":"9","country":"USA","state":"CA","name":"Fresno Pacific University","subteam":""},{"id":"10","country":"USA","state":"CA","name":"Bakersfield","subteam":""},{"id":"11","country":"USA","state":"CA","name":"Buchanan","subteam":""},{"id":"12","country":"USA","state":"CA","name":"Campolindo-Moraga","subteam":""},{"id":"13","country":"USA","state":"CA","name":"Fremont-Sunnyvale","subteam":""},{"id":"14","country":"USA","state":"CA","name":"Ponderosa-Shingle Springs","subteam":""},{"id":"15","country":"USA","state":"CA","name":"West Covina","subteam":""},{"id":"16","country":"USA","state":"CA","name":"Gilroy","subteam":""},{"id":"17","country":"USA","state":"CA","name":"San José State University","subteam":""},{"id":"18","country":"USA","state":"CA","name":"University of California, Los Angeles","subteam":""},{"id":"19","country":"USA","state":"CA","name":"Sierra College","subteam":""},{"id":"20","country":"USA","state":"CA","name":"Selma","subteam":""},{"id":"21","country":"USA","state":"CA","name":"Liberty","subteam":""}],}]}]}

如果这对其他人有任何帮助，into将给出以下错误：

---

语法错误：JSON.parse:应为双引号属性名

'jsonp'数据类型不使用且不能使用POST方法。相反，所有数据都以查询字符串的形式传递。因此，如果超过服务器的最大查询字符串长度，则不会传递数据。原因是jQuery将json数据作为节点加载到html文档中，这只能作为GET完成。如果您需要更多数据，则必须使用XML或其他格式。

能否尝试将其设置为非字符串开头？与中一样，只需将一个JavaScript对象传递给

ajax

调用的

data

参数。看看会发生什么。请发布一个JSON失败的例子。比你发布的内容大5倍其实并没有那么大。这可能是JSON字符串中的转义问题或结构问题。它是用stringify（）创建的。不，不，我的意思是直接将对象传递给

数据：

，而不是使用任何类型的stringify。将对象传递给jQuery，它会将其转换为JSON。如果仍然失败，则可能是pix0r所说的“服务器配置问题”。@thenduks:jQuery不会将任何内容序列化为JSON。如果您传递

.ajax

一个对象，您将获得为您生成的标准

foo=1&bar=2

请求正文/查询。如果OP想要JSON，那么

JSON.stringify

是一个不错的选择。我也这么认为，但它的内容是：post_max_size=64M，即64兆字节，对吗？还要检查httpd.conf以获得

LimitRequestBody

（是的，64M==64兆字节）。我在httpd.conf中设置了“LimitRequestBody 0”（无限制），并重新启动了Apache。没有效果。还有其他想法吗？可能还有你的浏览器的局限性=）罗纳德，你能找到解决这个问题的办法吗？我正面临着完全相同的问题，尽管我的字符串在3127个字符处被截断，应该已经指定了（虽然我已经指定了）：json请求是通过向html文档添加一个节点发送的。所有数据都以查询字符串形式传递。例如：：数组后面有一个逗号，可能导致此错误：

…“Liberty”，“subteam”：“}]，}]}]}

这是不正确的JSON。有些浏览器可以通过忽略尾随逗号进行恢复，但有些浏览器无法对其进行分析。

$strJson = file_get_contents('http://mydomain/page');
var_dump($strJson);

{"events":[{"dates":["2009-10-10","2009-10-11","2009-10-12"],"divisions":[{"level":"Collegiate","name":"Varsity","subdivision":"Division I","rounds":[],"teams":[{"id":"0","country":"USA","state":"CA","name":"California Polytechnic State University","subteam":""},{"id":"1","country":"USA","state":"CA","name":"California State University, Bakersfield","subteam":""},{"id":"2","country":"USA","state":"CA","name":"California State University, Fresno","subteam":""},{"id":"3","country":"USA","state":"CA","name":"California State University, Fullerton","subteam":""},{"id":"4","country":"USA","state":"CA","name":"Stanford University","subteam":""},{"id":"5","country":"USA","state":"CA","name":"University of California, Davis","subteam":""},{"id":"6","country":"USA","state":"CA","name":"San Francisco State University","subteam":""},{"id":"7","country":"USA","state":"CA","name":"Lassen Community College","subteam":""},{"id":"8","country":"USA","state":"CA","name":"Menlo College","subteam":""},{"id":"9","country":"USA","state":"CA","name":"Fresno Pacific University","subteam":""},{"id":"10","country":"USA","state":"CA","name":"Bakersfield","subteam":""},{"id":"11","country":"USA","state":"CA","name":"Buchanan","subteam":""},{"id":"12","country":"USA","state":"CA","name":"Campolindo-Moraga","subteam":""},{"id":"13","country":"USA","state":"CA","name":"Fremont-Sunnyvale","subteam":""},{"id":"14","country":"USA","state":"CA","name":"Ponderosa-Shingle Springs","subteam":""},{"id":"15","country":"USA","state":"CA","name":"West Covina","subteam":""},{"id":"16","country":"USA","state":"CA","name":"Gilroy","subteam":""},{"id":"17","country":"USA","state":"CA","name":"San José State University","subteam":""},{"id":"18","country":"USA","state":"CA","name":"University of California, Los Angeles","subteam":""},{"id":"19","country":"USA","state":"CA","name":"Sierra College","subteam":""},{"id":"20","country":"USA","state":"CA","name":"Selma","subteam":""},{"id":"21","country":"USA","state":"CA","name":"Liberty","subteam":""}],}]}]}