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Generating a random password in php
...is method as well...
$bytes = openssl_random_pseudo_bytes(2);
$pwd = bin2hex($bytes);
It's taken from the php.net site and it creates a string which is twice the length of the number you put in the openssl_random_pseudo_bytes function. So the above would create a password 4 characters long.
In ...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...hrowInfo类型的对象的指针。_ThrowInfo也是编译器内部的一种数据类型。它是一个结构体,包含了所抛出的异常对象的各种相关的详细信息。其形式如下:
typedef const struct _s__ThrowInfo
{
unsigned int attributes;
_PMFN pmfnUnwind;
int (__cdec...
常用Linux命令详解(持续更新) - 更多技术 - 清泛网 - 专注C/C++及内核技术
... tcpdump 命令
使用 tcpdump 命令可以获取到Liunx平台经过的数据包并保存下来,方便对Linux平台收发数据进行分析。下面用一个最简单的例子进行基本命令分析。
tcpdump -i eth0 -w 111.cap -s 0
-i<网络界面> 获取指定网口收发的数据包
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C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...XCEL的源码VC对Excel表格的操作的方法有多种,如:通过ODBC数据库实现,通过解析Excel表格文件,通过OLE COM的实现。本文主要研究通过OLE COM实现对Excel表格的操作。另外,本文主代码中汇聚各网友的智慧进行了优化(比如预加载等...
Calculate RSA key fingerprint
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Since your example hex fingerprint is 32 digits I believe it would be an MD5 fingerprint, correct? As opposed to a 40 digit fingerprint, which would indicate SHA1
– culix
Dec 19 '13 at 15:12
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How can I get a side-by-side diff when I do “git diff”?
...es the following seven arguments to the diff program:
path old-file old-hex old-mode new-file new-hex new-mode
You typically only need the old-file and new-file parameters. Of course most diff tools only take two file names as an argument. This means that you need to write a small wrapper-scr...
Suppress/ print without b' prefix for bytes in Python 3
...t;>> print(str(curses.version, "utf-8"))
2.2
Optionally convert to hex first, if the data is not already UTF-8 compatible. E.g. when the data are actual raw bytes.
from binascii import hexlify
from codecs import encode # alternative
>>> print(hexlify(b"\x13\x37"))
b'1337'
>>...
Python int to binary string?
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If you're looking for bin() as an equivalent to hex(), it was added in python 2.6.
Example:
>>> bin(10)
'0b1010'
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Generating CSV file for Excel, how to have a newline inside a value
...ters (encoded in UTF-8) in the file, you should have a UTF-8 BOM (3 bytes, hex EF BB BF) at the start of the file. Otherwise Excel will interpret the data according to your locale's default encoding (e.g. cp1252) instead of utf-8, and your non-ASCII characters will be trashed.
Following comments ap...
Simulating ENTER keypress in bash script
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if you feed this output to xxd you get 5c6e hex, which is a literal \n. if you do just echo | xxd you actually end up with a hex of 0a. So I guess use whichever your program needs.
– Marcin
Jun 7 '11 at 11:46
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