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Question

我花了一些时间试图追踪a particular Laravel bug的根本原因，因为最初的GitHub问题在未经解决的情况下被关闭。

经过一段时间的实验后，我发现会话正在重新生成，因为laravel_session Cookie设置为null。尽可能追溯到这一点，我发现在index.php - 在Laravel 曾加载之前 - $_COOKIE的值已损坏...有时候

大约90％的时间我打电话给我的应用程序时，我的cookie看起来像这样：

array:7 [
  "__unam" => "bc7c68-14f8d12a5ef-43097c02-213"
  "__utma" => "152883115.857409601.1438038184.1440538193.1440976773.14"
  "__utmc" => "152883115"
  "__utmz" => "152883115.1435960225.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)"
  "PHPSESSID" => "k8qvmt8ccbhcqepbn7mib8kra6"
  "XSRF-TOKEN" => "eyJpdiI6IlJGd2M1WHlRcnhpeGtobFZpVlZaWmc9PSIsInZhbHVlIjoiMXhFSnlHeTZKbkc5NWxYcFwvNkNUTkNXeVpROWIweGJkczhIXC9LVStNMVlvSjFoRmttTXlLeTVOS01JM0wrN2FCdjVvQzM2RHNwRjJQcGlTNWZyelM2QT09IiwibWFjIjoiZDdjMzk1Zjg0YWUzYjhlNzUyYmQ4NzAwNTFhZWIwNDM1MDQyYmMwZjZkODllMTVlMGMxNTVjZjBmNTlmMTlkNiJ9"
  "laravel_session" => "eyJpdiI6InV4YmFFTzJxTTdrVGlPdjVQZkszS1E9PSIsInZhbHVlIjoieGdsYzJTYTlqY3k4MzFIR2l6b2ZSaFwvK1RmdGg1UUhYR2dkdVpmNVVvcHoyMm5yRUpMUWRGRjVZd3ZUXC81OXl1QnpBRnR3a05kNXp1MEFoV2pLTmpIdz09IiwibWFjIjoiOThjMTU1MTE0ZTRjM2E2MGEzNGQ0MTcwODNhZmNlODMyZjM0MGViMjdmZjliMWZhNjE2M2Q0YzFlNWQxZDZiYyJ9"
]

但是有10％的时间，它看起来像是这样：

array:7 [
  "__unam" => "bc7c68-14f8d12a5ef-43097c02-213"
  "__utma" => "152883115.857409601.1438038184.1440538193.1440976773.14"
  "__utmc" => "152883115"
  "__utmz" => "152883115.1435960225.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)"
  "PHPSESSID" => "k8qvmt8ccbhcqepbn7mib8kra6"
  "XSRF-TOKEN" => "eyJpdiI6IlJGd2M1WHlRcnhpeGtobFZpVlZaWmc9PSIsInZhbHVlIjoiMXhFSnlHeTZKbkc5NWxYcFwvNkNUTkNXeVpROWIweGJkczhIXC9LVStNMVlvSjFoRmttTXlLeTVOS01JM0wrN2FCdjVvQzM2RHNwRjJQcGlTNWZyelM2QT09IiwibWFjIjoiZDdjMzk1Zjg0YWUzYjhlNzUyYmQ4NzAwNTFhZWIwNDM1MDQyYmMwZjZkODllMTVlMGMxNTVjZjBmNTlmMTlkNiJ9"
  "laravel_session" => "eyJpdiI6InV4YmFFTzJxTTdrVGlPdjVQZkszS1E9PSIsInZhbHVlIjoieGdsYzJTYTlqY3k4MzFIR2l6b2ZSaFwvK1RmdGg1UUhYR2dkdVpmNVVvcHoyMm5yRUpMUWRGRjVZd3Z"
]

使用网络代理（Charles）监控网络流量，我的问题是不 - 正在发送完整的Cookie字符串，但服务器只看到部分消息（ laravel_session cookie被切断了）

每次出现问题时，它都会在完全相同位置被切断：cookie字符串开始后的678个字节（原始HTTP请求文本中为1435个字节）。奇怪的是，请求正文在没有任何损害的情况下传输，并且在原始HTTP请求中的之后，因此它不是TCP连接失败的问题。

PATCH /api/employees/1 HTTP/1.1 Host: www.mywebsite.com Content-Length: 23 Accept: application/json, text/plain, */* Origin: http://www.mywebsite.com X-XSRF-TOKEN: eyJpdiI6IlJGd2M1WHlRcnhpeGtobFZpVlZaWmc9PSIsInZhbHVlIjoiMXhFSnlHeTZKbkc5NWxYcFwvNkNUTkNXeVpROWIweGJkczhIXC9LVStNMVlvSjFoRmttTXlLeTVOS01JM0wrN2FCdjVvQzM2RHNwRjJQcGlTNWZyelM2QT09IiwibWFjIjoiZDdjMzk1Zjg0YWUzYjhlNzUyYmQ4NzAwNTFhZWIwNDM1MDQyYmMwZjZkODllMTVlMGMxNTVjZjBmNTlmMTlkNiJ9 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36 Content-Type: application/json;charset=UTF-8 Referer: http://www.mywebsite.com/admin/employees?location=1 Accept-Encoding: gzip, deflate, sdch Accept-Language: en-US,en;q=0.8 Cookie: __unam=bc7c68-14f8d12a5ef-43097c02-213; __utma=152883115.857409601.1438038184.1440538193.1440976773.14; __utmc=152883115; __utmz=152883115.1435960225.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); PHPSESSID=k8qvmt8ccbhcqepbn7mib8kra6; XSRF-TOKEN=eyJpdiI6IlJGd2M1WHlRcnhpeGtobFZpVlZaWmc9PSIsInZhbHVlIjoiMXhFSnlHeTZKbkc5NWxYcFwvNkNUTkNXeVpROWIweGJkczhIXC9LVStNMVlvSjFoRmttTXlLeTVOS01JM0wrN2FCdjVvQzM2RHNwRjJQcGlTNWZyelM2QT09IiwibWFjIjoiZDdjMzk1Zjg0YWUzYjhlNzUyYmQ4NzAwNTFhZWIwNDM1MDQyYmMwZjZkODllMTVlMGMxNTVjZjBmNTlmMTlkNiJ9; laravel_session=eyJpdiI6InV4YmFFTzJxTTdrVGlPdjVQZkszS1E9PSIsInZhbHVlIjoieGdsYzJTYTlqY3k4MzFIR2l6b2ZSaFwvK1RmdGg1UUhYR2dkdVpmNVVvcHoyMm5yRUpMUWRGRjVZd3ZUXC81OXl1QnpBRnR3a05kNXp1MEFoV2pLTmpIdz09IiwibWFjIjoiOThjMTU1MTE0ZTRjM2E2MGEzNGQ0MTcwODNhZmNlODMyZjM0MGViMjdmZjliMWZhNjE2M2Q0YzFlNWQxZDZiYyJ9 {"id":"1","show":false}

我正在使用PHP的内置开发服务器（php -S 0.0.0.0:80）。我尝试使用Apache来查看它是否解决了这个问题，而且似乎就像Cookie字符串总是正确地与Apache一起遇到的那样，我又遇到了另一个错误，即PHP完全崩溃并在遇到问题时烧伤file_put_contents致电。我有以下代码：

try { echo "Writing... (LOCK_EX: " . LOCK_EX . ")<br />\n"; file_put_contents($path, $contents, $lock ? LOCK_EX : 0); echo "Done."; } catch( Exception $e ) { echo "WHAT"; } echo "Failed?";

仅返回Writing... (LOCK_EX: 2)<br />\n

没有＆＃34;完成。＆＃34;，＆＃34;什么＆＃34;或＆＃34;失败？＆＃34;显示。

看ps all查看服务器是否挂起，我甚至都看不到Apache进程。但是我知道Apache正在运行，因为如果我停止Apache（sudo apachectl stop），我就会停止从服务器获取任何响应

4 0 807 1 20 0 15820 912 n_tty_ Ss+ tty4 0:00 /sbin/getty -8 38400 tty4 4 0 810 1 20 0 15820 916 n_tty_ Ss+ tty5 0:00 /sbin/getty -8 38400 tty5 4 0 815 1 20 0 15820 916 n_tty_ Ss+ tty2 0:00 /sbin/getty -8 38400 tty2 4 0 816 1 20 0 15820 920 n_tty_ Ss+ tty3 0:00 /sbin/getty -8 38400 tty3 4 0 819 1 20 0 15820 916 n_tty_ Ss+ tty6 0:00 /sbin/getty -8 38400 tty6 4 0 1029 1 20 0 15820 916 n_tty_ Ss+ tty1 0:00 /sbin/getty -8 38400 tty1 0 0 1057 9241 20 0 10016 880 - R+ pts/2 0:00 ps all 0 0 5278 9239 20 0 12404 1212 wait Ss pts/8 0:00 bash -c export ISOUTPUTPANE=0;bash -l 0 0 5279 5278 20 0 22708 3660 n_tty_ S+ pts/8 0:00 bash -l 0 0 9240 9239 20 0 12404 1144 wait Ss pts/2 0:00 bash -c export ISOUTPUTPANE=0;bash -l 0 0 9241 9240 20 0 22776 3868 wait S pts/2 0:00 bash -l 0 0 9287 9239 20 0 12404 1148 wait Ss pts/4 0:00 bash -c export ISOUTPUTPANE=0;bash -l 0 0 9288 9287 20 0 22792 4040 n_tty_ S+ pts/4 0:02 bash -l 0 0 10740 9239 20 0 12404 1152 wait Ss pts/5 0:00 bash -c export ISOUTPUTPANE=0;bash -l 0 0 10741 10740 20 0 22756 3836 n_tty_ S+ pts/5 0:00 bash -l 0 0 17522 17476 20 0 1924 512 poll_s Ss+ pts/1 0:00 /root/.c9/bin/tmux -u2 -L cloud91.9 attach -t user@server_668 -d 0 0 18258 17476 20 0 1924 516 poll_s Ss+ pts/3 0:00 /root/.c9/bin/tmux -u2 -L cloud91.9 attach -t user@server_14 -d 0 0 20097 9239 20 0 12404 1204 wait Ss pts/9 0:00 bash -c export ISOUTPUTPANE=0;bash -l 0 0 20098 20097 20 0 22708 3808 wait S pts/9 0:00 bash -l 0 0 20134 20098 20 0 103624 2880 n_tty_ S+ pts/9 0:00 mysql -u root -p 0 0 30986 17476 20 0 1924 516 poll_s Ss+ pts/7 0:00 /root/.c9/bin/tmux -u2 -L cloud91.9 attach -t user@server_836 -d 0 0 31599 9239 20 0 12404 1204 wait Ss pts/6 0:00 bash -c export ISOUTPUTPANE=0;bash -l 0 0 31603 31599 20 0 22708 3636 n_tty_ S+ pts/6 0:00 bash -l 0 0 31632 9239 20 0 12404 1152 wait Ss pts/10 0:00 bash -c export ISOUTPUTPANE=0;bash -l 0 0 31633 31632 20 0 22760 3828 n_tty_ S+ pts/10 0:00 bash -l 0 0 31811 9239 20 0 12404 1152 wait Ss pts/12 0:00 bash -c export ISOUTPUTPANE=0;bash -l 0 0 31812 31811 20 0 22708 3520 n_tty_ S+ pts/12 0:00 bash -l

我真的不确定发生了什么（为什么Apache失败或为什么PHP内置服务器会切断我的$_COOKIE变量）。

作为最后一点，我已经检查了我试图写入的文件的权限：

-rwxr-xr-x 1 root root 10629 Mar 12 13:14 services.json

所以不是那样。

更新

Per @ Siguza的建议，我尝试添加另一个cookie来看看会发生什么。在第一次检查时，看起来在我解密之前运行dd( $request->cookies )时会发生一些非常奇怪的行为：

成功

ParameterBag {#40 #parameters: array:9 [ "PHPSESSID" => "k8qvmt8ccbhcqepbn7mib8kra6" "__unam" => "bc7c68-14f8d12a5ef-43097c02-217" "__utma" => "152883115.857409601.1438038184.1440976773.1441571912.15" "__utmb" => "152883115.4.9.1441572254693" "__utmc" => "152883115" "__utmz" => "152883115.1435960225.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)" "yetAnotherCookie" => "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" "XSRF-TOKEN" => "eyJpdiI6ImVqcW1cL09cL3oyQ0ZIcFBiQTRmZXFKUT09IiwidmFsdWUiOiJEbzV0NHcraGNmd3BMb0hibG5uNm9UTnhvNlV4bVRCVWRHOWFBM3VrOG0wZ2Z2NmF5QnpuNFh6a1dYdmhcL2pmWUtIb2lsOGdBS29xV0hvNnFOQktxR2c9PSIsIm1hYyI6IjRjMjU4ZWYxMTJkZTQ1NTU2YWQ3M2EwZjAzZDQwNDI4YzNmOTJjYTVhZTUzZTg4MzFmNTUxZDFkMTljNDBjZjkifQ==" "laravel_session" => "eyJpdiI6IkRkcGNLRE9KK3hkOFRNdzFXQzQreWc9PSIsInZhbHVlIjoiQm1qN2lNa2pTQTE2ZTQxUzJxbExGYnhheFhjUkQwMEpybEQ3XC9cL0pDMzA1MXdEeHF3a09qbnRKTjdPMzRKdjdBeFFNQ1hkamw1THFQanlnUURoRjJndz09IiwibWFjIjoiYTkzNjdmYjYyYTMzODM2MmY2MjQyNzZhNDQ1YjY2NzQ3OTFiZjVjODIyZmYzYmE3YjhlNGM1ZjQ2NTk1MTczNyJ9" ] }

失败

ParameterBag {#40 #parameters: array:8 [ "PHPSESSID" => "k8qvmt8ccbhcqepbn7mib8kra6" "__unam" => "bc7c68-14f8d12a5ef-43097c02-217" "__utma" => "152883115.857409601.1438038184.1440976773.1441571912.15" "__utmb" => "152883115.4.9.1441572254693" "__utmc" => "152883115" "__utmz" => "152883115.1435960225.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)" "XSRF-TOKEN" => "eyJpdiI6ImVqcW1cL09cL3oyQ0ZIcFBiQTRmZXFKUT09IiwidmFsdWUiOiJEbzV0NHcraGNmd3BMb0hibG5uNm9UTnhvNlV4bVRCVWRHOWFBM3VrOG0wZ2Z2NmF5QnpuNFh6a1dYdmhcL2pmWUtIb2lsOGdBS29xV0hvNnFOQktxR2c9PSIsIm1hYyI6IjRjMjU4ZWYxMTJkZTQ1NTU2YWQ3M2EwZjAzZDQwNDI4YzNmOTJjYTVhZTUzZTg4MzFmNTUxZDFkMTljNDBjZjkifQ==" "laravel_session" => "eyJpdiI6IkRkcGNLRE9KK3hkOFRNdzFXQzQreWc9PSIsInZhbHVlIjoiQm1qN2lNa2pTQTE2ZTQxUzJxbExGYnhheFhjUkQwM" ] }

奇怪的是，我添加的新Cookie（还有另一个Cookie）完全消失了，而laravel会话仍然被截断。检查HTTP请求时，我注意到最后附加了yetAnotherCookie，因此截断整个字符串会合理地将其从列表中删除：

PHPSESSID=k8qvmt8ccbhcqepbn7mib8kra6; __unam=bc7c68-14f8d12a5ef-43097c02-217; __utma=152883115.857409601.1438038184.1440976773.1441571912.15; __utmb=152883115.4.9.1441572254693; __utmc=152883115; __utmz=152883115.1435960225.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); XSRF-TOKEN=eyJpdiI6ImVqcW1cL09cL3oyQ0ZIcFBiQTRmZXFKUT09IiwidmFsdWUiOiJEbzV0NHcraGNmd3BMb0hibG5uNm9UTnhvNlV4bVRCVWRHOWFBM3VrOG0wZ2Z2NmF5QnpuNFh6a1dYdmhcL2pmWUtIb2lsOGdBS29xV0hvNnFOQktxR2c9PSIsIm1hYyI6IjRjMjU4ZWYxMTJkZTQ1NTU2YWQ3M2EwZjAzZDQwNDI4YzNmOTJjYTVhZTUzZTg4MzFmNTUxZDFkMTljNDBjZjkifQ%3D%3D; laravel_session=eyJpdiI6IkRkcGNLRE9KK3hkOFRNdzFXQzQreWc9PSIsInZhbHVlIjoiQm1qN2lNa2pTQTE2ZTQxUzJxbExGYnhheFhjUkQwMEpybEQ3XC9cL0pDMzA1MXdEeHF3a09qbnRKTjdPMzRKdjdBeFFNQ1hkamw1THFQanlnUURoRjJndz09IiwibWFjIjoiYTkzNjdmYjYyYTMzODM2MmY2MjQyNzZhNDQ1YjY2NzQ3OTFiZjVjODIyZmYzYmE3YjhlNGM1ZjQ2NTk1MTczNyJ9; yetAnotherCookie=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789

我清除了域名的所有Cookie并再次尝试：

成功

ParameterBag {#40 #parameters: array:4 [ "__unam" => "bc7c68-14f8d12a5ef-43097c02-217" "XSRF-TOKEN" => "eyJpdiI6ImV6aklvVVNwZHdCMThON1hQOW9rcmc9PSIsInZhbHVlIjoiWlY1aGdQamJ1Y2FQTGxTUDZTTmxPK2xLZm5xZG15enlVXC95RXhRMHNqbm9udkp5T3NnR3FBQ0dxRWEzYTdIVUFveHA1TTZkV2lTcGlcL1wvalQzQ09QbUE9PSIsIm1hYyI6IjYyMzM5MGM4MjYxNzYzNmI5NGYyZDFmMTU3M2M4NTA5NzBlYjZlMGZmMmViM2QzNjlhZjZmNTdlMmE4ZmRjMmUifQ==" "laravel_session" => "eyJpdiI6Illzd2xnalRXVzhKaVI0blRQUUtiNXc9PSIsInZhbHVlIjoiKzVaQVR0cHNqbDZEcGd5UG9POWFhbFdyYzhaTDNqb1FOQ2xmcEFYVUZUZTJkNUZSYzNRUlhCajJhNHBNK3VXd2gxYlwvUWtiTEE0bk5lVmp0d2lcL3pkQT09IiwibWFjIjoiNjA5MDU2ODViYTQ4YmM0YjlmYWVmOWY1NzliY2Y3YjdhYjMzYTA0MWU4ZjMwODg0N2E5NGI2N2U2ZDc3MTIwNSJ9" "yetAnotherCookie" => "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" ] }

失败

ParameterBag {#40 #parameters: array:4 [ "__unam" => "bc7c68-14f8d12a5ef-43097c02-217" "XSRF-TOKEN" => "eyJpdiI6ImV6aklvVVNwZHdCMThON1hQOW9rcmc9PSIsInZhbHVlIjoiWlY1aGdQamJ1Y2FQTGxTUDZTTmxPK2xLZm5xZG15enlVXC95RXhRMHNqbm9udkp5T3NnR3FBQ0dxRWEzYTdIVUFveHA1TTZkV2lTcGlcL1wvalQzQ09QbUE9PSIsIm1hYyI6IjYyMzM5MGM4MjYxNzYzNmI5NGYyZDFmMTU3M2M4NTA5NzBlYjZlMGZmMmViM2QzNjlhZjZmNTdlMmE4ZmRjMmUifQ==" "laravel_session" => "eyJpdiI6Illzd2xnalRXVzhKaVI0blRQUUtiNXc9PSIsInZhbHVlIjoiKzVaQVR0cHNqbDZEcGd5UG9POWFhbFdyYzhaTDNqb1FOQ2xmcEFYVUZUZTJkNUZSYzNRUlhCajJhNHBNK3VXd2gxYlwvUWtiTEE0bk5lVmp0d2lcL3pkQT09IiwibWFjIjoiNjA5MDU2ODViYTQ4YmM0YjlmYWVmOWY1NzliY2Y3YjdhYjMzYTA0MWU4ZjMwODg0N2E5NGI2N2U2ZDc3MTIwNSJ9" "yetAnotherCookie" => "abcdefghijklmnopqrstuvwxyzABCDEFGHIJK" ] }

这次只截断了yetAnotherCookie，而不是laravel_session。再次查看HTTP请求，尽管首先设置了这个cookie，但是这个cookie再次进入列表的末尾（我猜Chrome是按字母顺序排列的Cookie列表？）只是现在整个列表更短了：

__unam=bc7c68-14f8d12a5ef-43097c02-217; XSRF-TOKEN=eyJpdiI6ImV6aklvVVNwZHdCMThON1hQOW9rcmc9PSIsInZhbHVlIjoiWlY1aGdQamJ1Y2FQTGxTUDZTTmxPK2xLZm5xZG15enlVXC95RXhRMHNqbm9udkp5T3NnR3FBQ0dxRWEzYTdIVUFveHA1TTZkV2lTcGlcL1wvalQzQ09QbUE9PSIsIm1hYyI6IjYyMzM5MGM4MjYxNzYzNmI5NGYyZDFmMTU3M2M4NTA5NzBlYjZlMGZmMmViM2QzNjlhZjZmNTdlMmE4ZmRjMmUifQ%3D%3D; laravel_session=eyJpdiI6Illzd2xnalRXVzhKaVI0blRQUUtiNXc9PSIsInZhbHVlIjoiKzVaQVR0cHNqbDZEcGd5UG9POWFhbFdyYzhaTDNqb1FOQ2xmcEFYVUZUZTJkNUZSYzNRUlhCajJhNHBNK3VXd2gxYlwvUWtiTEE0bk5lVmp0d2lcL3pkQT09IiwibWFjIjoiNjA5MDU2ODViYTQ4YmM0YjlmYWVmOWY1NzliY2Y3YjdhYjMzYTA0MWU4ZjMwODg0N2E5NGI2N2U2ZDc3MTIwNSJ9; yetAnotherCookie=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789

这次切断了685字节，而不是之前的678。 Curiouser和curiouser。

更新2

这是另一个奇怪的。我尝试点击略微不同的端点。我点了www.mywebsite.com/api/employees/1
而不是www.mywebsite.com/api/employees/10
这次从cookie字符串中删除了一封额外的字母。这促使我再看一遍整个原始HTTP请求。原始HTTP请求中恰好有1435个字节是cookie字符串被切断的时候。

所以我又做了一个实验：我使用浏览器中的以下javascript发送了一个巨大的自定义标题

$.ajax('/api/employees/1', { method: 'PATCH', headers: {'X-REALLY-LONG-HEADER': 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'}, success: function(data) { console.log(data); } });

我还稍微修改了返回值，因为Laravel的dd()函数将返回值包装在很多HTML中，这使得在控制台中难以解释。有了很长的标题，我在几次尝试后得到了以下内容：

Cookies: __unam = bc7c68-14f8d12a5ef-43097c02-217 XSRF-TOKEN = eyJpdiI6ImV6aklvVVNwZHdCMThON1hQOW9rcmc9PSIsInZhbHVlIjoiWlY1aGd

这实际上是 1460 字节进入原始请求...我不确定如何解释它表现不同的事实，但这表明一些奇怪的1450字节限制在PHP的内置服务器在HTTP请求中崩溃之前。

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尝试将PHP升级到5.6

首先让我失败了。 apt-get install --only-upgrade php5刚刚安装了一个稍新的5.5.9

然后我从php.net下载了源代码并尝试从源代码构建。根据{{1}}说明，您应该在运行INSTALL和./configure之前运行make，所以我试了一下。过了一会儿，我得到了以下内容：

make install

我尝试使用... checking for strftime... (cached) yes checking which regex library to use... php checking whether to enable LIBXML support... yes checking libxml2 install dir... no checking for xml2-config path... configure: error: xml2-config not found. Please check your libxml2 installation.更新此内容并获得以下内容：

apt-get install libxml2

由于root@C9-workspace:~/php-5.6.13# apt-get install libxml2 Reading package lists... Done Building dependency tree Reading state information... Done libxml2 is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 200 not upgraded.使我失败而我无法升级libxml2，我尝试了安装：

./configure

我可能只是作为服务器管理员不称职，但我不知道如何在没有有用的MSI文件的情况下安装PHP 5.6

PHP $ _COOKIE没有完全填充

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0 个答案: