PHP Simple Generation of Random Numbers, Strings
1. Generate random string /** * Generate random string * * @param int $length Output length * @param string $chars Optional , default is 0123456789 * @return string string */ function random( $length, $chars ...
PHP DateTime common methods
Instantiation of an object preceded by \ means that the native class is used in the namespace, if the namespace is not used, you can remove the preceding \ 1. Output the current time $datetime = new \DateTime; print_r($datetime->format('Y-m-d H:i...
PHP common methods to manipulate directories or files
1, convert \ to / /** * Convert \ to / * * * @param string $path path * @return string path */ function dir_path($path) { $path = str_replace('\\', '/', $path); if(substr($path, -1) ! = '/'...
PHP common string processing methods
1, realize the search engine to search results hit the keyword marked red <?php /** * Split the string into an array * @param $search search keyword * @return array */ function splitString(string $search):array { // positive ...
PHP class libraries are parsed into regions-provinces and cities based on ip
PHP class libraries are parsed into regions-provinces and cities based on ip