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CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
...请求传达给PHP，Nginx在得到*.php请求时，会把请求通过9000端口传给PHP。下面我们把这些注释给去掉即可，如下图
注：上面的/usr/local/nginx/html 是我们PHP网站放置的路径
那么只有Nginx自己知道咋找PHP了还不行...
How to convert an IPv4 address into a integer in C#?
...actually checks the endianness, here goes:
byte[] ip = address.Split('.').Select(s => Byte.Parse(s)).ToArray();
if (BitConverter.IsLittleEndian) {
Array.Reverse(ip);
}
int num = BitConverter.ToInt32(ip, 0);
and back:
byte[] ip = BitConverter.GetBytes(num);
if (BitConverter.IsLittleEndian) {...
How to allow remote connection to mysql
...SQL and noticed there were multiple root users with different passwords.
select user, host, password from mysql.user;
So in MySQL I set all the passwords for root again and I could finally log in remotely as root.
use mysql;
update user set password=PASSWORD('NEWPASSWORD') where User='root';
fl...
MySQL CONCAT returns NULL if any field contain NULL
...
convert the NULL values with empty string by wrapping it in COALESCE
SELECT CONCAT(COALESCE(`affiliate_name`,''),'-',COALESCE(`model`,''),'-',COALESCE(`ip`,''),'-',COALESCE(`os_type`,''),'-',COALESCE(`os_version`,'')) AS device_name
FROM devices
...
How to get rid of `deprecated conversion from string constant to ‘char*’` warnings in GCC?
...ch case @John's answer below, about changing the signature to accept const char*, is more correct.
– jcwenger
Jun 27 '14 at 15:07
216
...
Get first n characters of a string
How can I get the first n characters of a string in PHP? What's the fastest way to trim a string to a specific number of characters, and append '...' if needed?
...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...说明书，不要弄错以免烧坏硬件）一般来说，需要接线的端口有以下4个，无论哪款蓝牙硬件，也无论哪种其他硬件，这4个端口都是基本的存在：VCC（正极）、GND（接地负极）、TX、RX 交叉接线，参考接线如图：2、串口工具测试...
How to get default gateway in Mac OSX
...the first line; one with default at its first column.
To display only the selected lines of result, we can use grep command along with netstat
netstat -rn | grep 'default'
This command filters and displays those lines of result having default. In this case, you can see result like following:
de...
Linux Glibc幽灵漏洞允许黑客远程获取系统权 - 操作系统(内核) - 清泛网 - ...
...de <string.h> #include <errno.h> #define CANARY"in_the_coal_mine" struct { char buffer[1024]; char canary[sizeof(CANARY)]; } temp = { "buffer", CANARY }; int main(void) { struct hostent resbuf; struct hostent *result; int herrno; int retval; /*** strlen (name) = size_needed -sizeof (*host_addr) - si...
What is the difference between a port and a socket?
...ed computers, but the ambiguity can be resolved using the routing table by selecting the interface with the shortest route to the remote endpoint.
Clarity would be enhanced in other respects, too. A socket is not identified by the combination of IP address and port:
[...]TCP demultiplexes incom...