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);
}
Can't find phpize on older versions of CentOS, can't compile php extensions. How to install phpize?
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 full name of PSR is called "PHP Standards Recommendations" (PHP Standards Recommendations). A proposed specification developed by FIG (PHP Framework Interoperability Group), This group was initiated by some framework developers in php|tek in 2009, from the first 5 to more than 20 now. There are many numbers in the "PHP Standard Recommendations", each number represents a different specification.
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