查询变量不能超过512个字符 [英] Query variable can be no longer than 512 characters

问题描述

我正在努力读取$_GET数组中包含超过512个字符的查询变量.但是，如果我使用parse_string解析查询字符串，则可以从结果数组中很好地读取它.

I'm struggling to read query variables that contain more than 512 characters in the $_GET array. If I parse the query string using parse_string, however, I can read it just fine from the resulting array.

示例:

# GET /test.php?foo=<string with 513 characters>&bar=bar HTTP/1.1

<?php
var_dump($_GET['foo']); # NULL
var_dump($_GET['bar']); # "bar"

parse_str($_SERVER['QUERY_STRING'], $output);
var_dump($output['foo']); # <string with 513 characters>
?>

这对我来说毫无意义，因为$_GET在内部使用parse_str从查询字符串中派生查询变量.我想念什么吗?

This makes no sense to me, since $_GET uses parse_str internally to derive the query variables from the query string. Am I missing something?

推荐答案

有一个PHP错误报告. #50449

There is a PHP bug report. #50449

GET参数的值超过512个字符不会显示在 $ _GET和$ _REQUEST数组.自升级到 5.3.1

GET parameters with a value longer than 512 characters don't show up in the $_GET and $_REQUEST arrays. We've noticed this since upgrading to 5.3.1

它说那里是Suhosin引起的行为.

It says there that it is Suhosin causing the behaviour.

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