Is there any way to create unique keys like those used in YouTube video urls (ex: https://www.youtube.com/watch?v=nWChTnkVdKE)?
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Answer
The idea is to convert a unique integer (such as current time) in an other mathematical base.
A very simple way in PHP :
// With this precision (microsecond) ID will looks like '2di2adajgq6h' // From PHP 7.4.0 this is needed, otherwise a warning is displayed $cleanNumber = preg_replace( '/[^0-9]/', '', microtime(false) ); $id = base_convert($cleanNumber, 10, 36); // With less precision (second) ID will looks like 'niu7pj' $id = base_convert(time(), 10, 36);