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How do PHP sessions work? (not “how are they used?”)
...when his session is created.
it is stored in a cookie (called, by default, PHPSESSID)
that cookie is sent by the browser to the server with each request
the server (PHP) uses that cookie, containing the session_id, to know which file corresponds to that user.
The data in the sessions files is the ...
string sanitizer for filename
...a whitelist of characters you are happy to be used? For example, you could allow just good ol' a-z, 0-9, _, and a single instance of a period (.). That's obviously more limiting than most filesystems, but should keep you safe.
...
PHP Fatal error: Call to undefined function json_decode()
Apache is logging PHP Fatal error: Call to undefined function json_decode() . After some googling, it seems this problem is a result of not having the latest version of php. Oddly, running php --version ouputs
...
Git error on commit after merge - fatal: cannot do a partial commit during a merge
...t adding "-i" to the commit command fixes this problem for me. The -i basically tells it to stage additional files before committing.
That is:
git commit -i myfile.php
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How to prevent form resubmission when page is refreshed (F5 / CTRL+R)
...;
Proof of concept here: https://dtbaker.net/files/prevent-post-resubmit.php
I would still recommend a Post/Redirect/Get approach, but this is a novel JS solution.
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Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...200万个，但我们设置最大文件描述符限制时，会遇到一些问题，我们在后面详细讲解。
2. 客户端的准备
由于我们需要构建大量的客户端，而我们知道，在一台系统上，连接到一个服务时的本地端口是有限的。由于端口是16位整...
家政O2O百家争鸣后的卡位战：烧钱补贴并非良药 - 资讯 - 清泛网 - 专注IT技能提升
...少业内人士表示，今年或将迎来真正的家政O2O大战，那么问题来了，怎么战？融资后的钱是否仅有补贴一道？
未来存活率仅有5%
国内巨大的家政需求吸引着一系列创业者的关注，根据“云家政”去年年底发布的北上广深四地家...
家政O2O百家争鸣后的卡位战：烧钱补贴并非良药 - 资讯 - 清泛网 - 专注IT技能提升
...少业内人士表示，今年或将迎来真正的家政O2O大战，那么问题来了，怎么战？融资后的钱是否仅有补贴一道？
未来存活率仅有5%
国内巨大的家政需求吸引着一系列创业者的关注，根据“云家政”去年年底发布的北上广深四地家...
家政O2O百家争鸣后的卡位战：烧钱补贴并非良药 - 资讯 - 清泛网 - 专注IT技能提升
...少业内人士表示，今年或将迎来真正的家政O2O大战，那么问题来了，怎么战？融资后的钱是否仅有补贴一道？
未来存活率仅有5%
国内巨大的家政需求吸引着一系列创业者的关注，根据“云家政”去年年底发布的北上广深四地家...
家政O2O百家争鸣后的卡位战：烧钱补贴并非良药 - 资讯 - 清泛网 - 专注IT技能提升
...少业内人士表示，今年或将迎来真正的家政O2O大战，那么问题来了，怎么战？融资后的钱是否仅有补贴一道？
未来存活率仅有5%
国内巨大的家政需求吸引着一系列创业者的关注，根据“云家政”去年年底发布的北上广深四地家...