php generate random id

PHP is also capable of major random functions, PHP event random functions Write in front PHP can also do big things is my summary of PHP syntax features and related functions of the classic use of library, and is not really able to achieve the

Use Rand () in MySQL to generate random numbers with random numbers and random name strings. Use Rand () in MySQL to generate random numbers with random numbers and random name strings. Preface:The RAND function returns a random floating point

Php + mysql implements random database rearranging instances and phpmysql rearranging instances In this example, we have implemented the php + mysql database random shuffling method. We can randomly read all the data in the table and save it to

Php+mysql implementation of database random rearrangement instances, Phpmysql re-scheduling instances In this paper, the method of random rearrangement of php+mysql database is realized, and all the data in the table can be randomly read out once

By default, the generated unique ID returns a string of 13 characters. If the prefix of the unique ID is not defined, a maximum of 23 strings can be returned. If you combine the md5 () function, the generated unique ID is more reliable. This

Use the PHPuniqid function to generate a unique ID. The PHPuniqid function is used to generate a unique ID. it is common to use phpuniqid to generate a unique id, such as the temporary cache file name, temporary variables, temporary security code,

Do you need to use rand to generate a random number and then go to the database to query whether there is such a number? It seems a little time-consuming. Is there any other way? Do you need to use rand to generate a random number and then go to the

Because you want to use a fixed-length random string. First is a section of PHP code $str _md5=md5 (Uniqid ()); $rand = Mt_rand (1); $str 1=substr ($str _md5, $rand, 6); $rand = Mt_rand (1); $str 2=substr ($str _md5, $rand, 6);

This article mainly introduces the use of PHP random functions, interested in the reference of friends, I hope to be helpful to everyone. Write in front The classic usage of PHP syntax features and related function libraries is not necessarily the

It's written in front. PHP can also do great things is my summary of PHP syntax features and related functions of the class Library classic usage, it is not necessarily true to achieve 42 of the effectiveness of the dial, but master these methods,