Create Unique AlphaNumeric

function MakeUnique($length=16) {
           $salt       = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
           $len        = strlen($salt);
           $makepass   = '';
           mt_srand(10000000*(double)microtime());
           for ($i = 0; $i < $length; $i++) {
               $makepass .= $salt[mt_rand(0,$len - 1)];
           }
       return $makepass;
}

Comments

  1. User Avatar
    Swadesh Ranjan Dash

    You can change the value of $bytes for more than 8 character.
    Example:- if you set $bytes = 2 then the o/p character 4.

    <?php
    $bytes  =  4;
    $cstrong   =  true;
    $uid       =  bin2hex(openssl_random_pseudo_bytes($bytes, $cstrong));
    ?>
    

Posting Code

You may write comments in Markdown. This makes code easy to post, as you can write inline code like `<div>this</div>` or multiline blocks of code in triple backtick fences (```) with double new lines before and after.

Code of Conduct

Absolutely anyone is welcome to submit a comment here. But not all comments will be posted. Think of it like writing a letter to the editor. All submitted comments will be read, but not all published. Published comments will be on-topic, helpful, and further the discussion or debate.

Want to tell us something privately?

Feel free to use our contact form. That's a great place to let us know about typos or anything off-topic.

Submit a Comment

icon-closeicon-emailicon-linkicon-menuicon-searchicon-tag