PHP

PHP Opcache accelerates access

Opcache is a way to avoid the overhead of loading and parsing the PHP script each time by storing the pre-compiled bytecode (Operate Code) of the parsed PHP script in the shared memory. The parser can directly read the cached words from the shared memory. Operate Code, which greatly improves the execution efficiency of PHP

PHP + Redis to implement Bloom filter

Bloom filter is a kind of random data structure with high space efficiency, which is specially used to detect whether there are specific elements in the set. The Bloom filter is a data structure composed of a bit array with a length of m bits and k independent hash functions.

WordPress WP website directory security permissions

WordPress file read and write permissions and ownership play an indispensable role in the overall security of the WordPress website, so we need to ensure that reasonable settings are made as much as possible

Fastadmin update and upgrade

Special attention, please backup the entire site before updating, including backup procedures and databases. For the upgrade of a project that has been put into production, please focus on evaluating the upgrade cost

Fastadmin SelectPage selection box linkage

The front end mainly displays and executes the corresponding operations. The specific implementation is to touch the corresponding function through the change of the drop-down box value