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How do I check if a directory exists? “is_dir”, “file_exists” or both?
...post input and uses it as-is, plus makes 0777 dir, prolly not that safe at all ;P
– sEver
Aug 20 '13 at 16:45
2
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外媒评本轮科技泡沫：创业公司首当其冲 九成将消失 - 资讯 - 清泛网 - 专注...
...团队，这个团队只能以财报电话会议内容以及各种棘手的问题为依据，对私营公司进行投资——把它们当作是上市公司。
总之，越来越多的日常投资者正暴露给后期私营科技公司，无论结果是好还是坏。据博伊德介绍，作为富...
Run php script as daemon process
...tions need to be taken as soon as instruction arrives. I know PHP is not really the best option for daemon processes due to memory management issues, but due to various reasons I have to use PHP in this case. I came across a tool by libslack called Daemon ( http://libslack.org/daemon ) it seems to h...
Git command to show which specific files are ignored by .gitignore
...kes a file to be ignored in your git repo.
On Unix, using "What expands to all files in current directory recursively?" and a bash4+:
git check-ignore **/*
(or a find -exec command)
Note: https://stackoverflow.com/users/351947/Rafi B. suggests in the comments to avoid the (risky) globstar:
git ...
Convert pem key to ssh-rsa format
...m assuming no password for the keys (which is bad).
Generate an RSA pair
All the following methods give an RSA key pair in the same format
With openssl (man genrsa)
openssl genrsa -out dummy-genrsa.pem 2048
In OpenSSL v1.0.1 genrsa is superseded by genpkey so this is the new way to do it (man...
POST unchecked HTML checkboxes
... Hard to believe authors designed it this way. Why not to send all input fields with some default value for those not checked :( It would be much clearer solution then having to implement some hidden fields "hack". It must have been clear that it is going to be needed and they had to see...
What are deferred objects?
...As of jQuery 1.5, the Deferred object provides a way to register multiple callbacks into self-managed callback queues, invoke callback queues as appropriate, and relay the success or failure state of any synchronous or asynchronous function.
Deferred Methods:
deferred.done()
Add handlers to be cal...
MySQL和MongoDB设计实例进行对比 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...档中相关说明。
MySQL需要多个表，多次查询才能搞定的问题，MongoDB只需要一个表，一次查询就能搞定，对比完成，相对MySQL而言，MongoDB显得更胜一筹，至少本例如此
MySQL MongoDB
Linux MySql编译安装 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...set storage_engine=MYISAM
这里仅记录相关步骤，期间遇到任何问题可在右侧搜索框搜索相关解决方案。Linux MySql 编译安装
App Launcher 应用启动器扩展：用于启动其他应用程序的强大工具，支持独立...
...
2.2 (2021-05-12)
解决了Android 10设备和小米设备的问题（见说明）添加属性：CanDrawOverlays、CanLaunchFromBackground、CurrentLanguage、IsXiaomi、Manufacturer、PermissionDelay、VersionName、VersionSDK添加方法：CheckBackgroundLaunchPermission、LaunchAppF...