Randomly generate four yards of English
//產生隨機碼，預設四碼，約七百次會出現碰撞
function get_random_key($length = 4)
{
$permitted_chars = '1234567890abcdefghijklmnopqrstuvwxyxABCDEFGHIJKLMNOPQRSTUVWXYX';
return substr(str_shuffle($permitted_chars), 0, $length);
}
Maybe in the old version of the docker environment, when using Docker compose to start the container, you will encounter the following error: Error response from daemon: could not find an available, non-overlapping IPv4 address pool among the defaults to assign to the network This is actually this It is a symptom of running out of default-address-pools. In some environments, docker-compose will use the private network of Class B by default. The private IP of segment 172 has a range, from 172.16.0.0 to 172.31.255.255. That is to say, when we start a docker-compose Project, it will eat a private section of Class B, which is very heroic.
The mailbox for receiving letters has exploded, and I don't want all the letters. Use PHP to clear the inbox. The following is the sample program I copied, with minor adjustments.
Sometimes the ca file cannot be found due to PHP version update or environment change. fix is easy
No Comment
Post your comment