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How to get a variable name as a string in PHP?

Say i have this PHP code: 24 Answers 24 ...
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Passing base64 encoded strings in URL

...ommend just writing your own helpers. Like these from the comments on the php manual page for base64_encode: function base64_url_encode($input) { return strtr(base64_encode($input), '+/=', '._-'); } function base64_url_decode($input) { return base64_decode(strtr($input, '._-', '+/=')); } ...
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REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...退出后执行如下命令使以上设置在当前窗口如果有配置有问题也可以提示。立即生效: source /home/oracle/.bash_profile 8、调整OS内核参数 设置原则: kernel.shmmax 为 4GB-1byte或一半的物理内存, 哪个值更低用哪个; fs.file-max 为512 * PROCESS...
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How to force the browser to reload cached CSS/JS files?

...it, there's no pain in figuring out which version you need to return to in order for your visitors not to re-download. share | improve this answer | follow | ...
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How do I log errors and warnings into a file?

...ile, but to set up all of that within the script (not changing anything in php.ini)? 7 Answers ...
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How to resolve “must be an instance of string, string given” prior to PHP 7?

... Prior to PHP 7 type hinting can only be used to force the types of objects and arrays. Scalar types are not type-hintable. In this case an object of the class string is expected, but you're giving it a (scalar) string. The error messa...
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Linux 进程卡住了怎么办? - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...rocess在我们使用 Linux 系统时,如果网络或者磁盘等 I O 出问题,会发现进程卡住了,即使用 kill -9 也无法杀掉进程,很多常用的调试工具,比如 strace, pstack 等也都失灵了 在我们使用 Linux 系统时,如果网络或者磁盘等 I/O 出...
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What's the difference between :: (double colon) and -> (arrow) in PHP?

There are two distinct ways to access methods in PHP, but what's the difference? 6 Answers ...
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Getting the first character of a string with $str[0]

... Does PHP $str[0] take into account that there can be 2Byte long chars? UTF and such? (even though substr() does not help with it either!) – Tomer W Jun 26 '13 at 13:29 ...
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手握利器,直面“蓝脸”! ——使用WinDbg抗击系统崩溃 - 操作系统(内核) - ...

...indows有时候也会跟我们闹闹情绪,小则是“应用程序遇到问题需要关闭”,搞不好还可能给您脸色看看。但是,这脸色可不是红的白的,而是一张“蓝脸”,您见过吗?首先,我们介绍以下三个重要的问题: 一、到底什么是...