2020-9-28 myluzh
PHP
function randomkeys($length)
{
$pattern = '1234567890ABCDEFGHIJKLOMNOPQRSTUVWXYZ';
$key = null;
for($i=0;$i<$length;$i++)
{
$key.= $pattern[mt_rand(0,strlen($pattern)-1)]; //生成php随机数
}
return $key;
}
$Code=randomkeys(6); //生成6位随机
echo $Code;
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标签: php
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(783)
2020-9-21 myluzh
MySQL
0x01 报错原因:
生成转储文件的数据库版本为8.0,要导入sql文件的数据库版本为5.6,因为是高版本导入到低版本,引起mysql 1273错误。
0x02 解决方法:
编辑sql文件,将文件中的所有
utf8mb4_0900_ai_ci替换为utf8_general_ci
utf8mb4替换为utf8
保存后再次运行sql文件,运行成功
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标签: mysql 1273 数据库
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(856)
2020-9-15 myluzh
SECURE
goto:
https://www.ip2location.com/free/visitor-blocker
Do you want to block visitors by country?
Select the countries you want to block, IP address version (IPv4 or IPv6), output format and press the "Download" button.
The output formats supported are Apache .htaccess, Linux iptables, CIDR, Netmask, Inverse Netmask, IIS web.config, Cisco ACL, PeerGuardian2, network-object, Cisco bit bucket, Juniper Junos and MikroTik. Please find the details below:
Format
...
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标签: 阻止 拦截 国家 访客
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(186)