Simple way to generate random string in PHP

While developing an application, sometimes it requires generating a random but unique string, e.g. Password Generator, CSRF token, and many more.

There are so many methods to generate random and unique strings in PHP. For Example:

rand();
uniqid();…


This content originally appeared on DEV Community and was authored by Deepak Singh

While developing an application, sometimes it requires generating a random but unique string, e.g. Password Generator, CSRF token, and many more.

There are so many methods to generate random and unique strings in PHP. For Example:

rand();
uniqid();
bin2hex(random_bytes(20));

Simple way to generate random string in PHP
But I prefer my way to generate a random string by using existing PHP functions and bit improvisation.
Here is the function:

function random_seed(){
  list($usec, $sec) = explode(' ', microtime());
  return $sec + $usec * 1000000;
}

function getRadomSeed(){
    mt_srand(random_seed());
    $prefix = substr(str_shuffle(str_repeat($x='abcNOPQRSTUVWXYZdefghijklmnopqrstuvwxyzABCDEFGHIJKLM', ceil(5/strlen($x)) )),1,5);
    $suffix = substr(str_shuffle(str_repeat($x='wxyzABCDEFGHIJKLMNOabcdefghijklmnopqrstuvPQRSTUVWXYZ', ceil(5/strlen($x)) )),1,5);
    $randval = mt_rand();
    if(strlen($randval) % 2 == 0){
        $random = $prefix.$randval.$suffix;
    }else if(strlen($randval) % 3 == 0){
        $random = $prefix.$suffix.$randval;
    }
    else{
        $random = $randval.$prefix.$suffix;
    }
    return $random;
}

Execute:

$rd = getRadomSeed();
echo $rd;

Just to be sure that this is not the only way to generate random strings in PHP. I am just sharing one of my ways to generate random strings.
Happy Thanksgiving! 🦃


This content originally appeared on DEV Community and was authored by Deepak Singh


Print Share Comment Cite Upload Translate Updates
APA

Deepak Singh | Sciencx (2021-11-26T06:18:40+00:00) Simple way to generate random string in PHP. Retrieved from https://www.scien.cx/2021/11/26/simple-way-to-generate-random-string-in-php/

MLA
" » Simple way to generate random string in PHP." Deepak Singh | Sciencx - Friday November 26, 2021, https://www.scien.cx/2021/11/26/simple-way-to-generate-random-string-in-php/
HARVARD
Deepak Singh | Sciencx Friday November 26, 2021 » Simple way to generate random string in PHP., viewed ,<https://www.scien.cx/2021/11/26/simple-way-to-generate-random-string-in-php/>
VANCOUVER
Deepak Singh | Sciencx - » Simple way to generate random string in PHP. [Internet]. [Accessed ]. Available from: https://www.scien.cx/2021/11/26/simple-way-to-generate-random-string-in-php/
CHICAGO
" » Simple way to generate random string in PHP." Deepak Singh | Sciencx - Accessed . https://www.scien.cx/2021/11/26/simple-way-to-generate-random-string-in-php/
IEEE
" » Simple way to generate random string in PHP." Deepak Singh | Sciencx [Online]. Available: https://www.scien.cx/2021/11/26/simple-way-to-generate-random-string-in-php/. [Accessed: ]
rf:citation
» Simple way to generate random string in PHP | Deepak Singh | Sciencx | https://www.scien.cx/2021/11/26/simple-way-to-generate-random-string-in-php/ |

Please log in to upload a file.



There are no updates yet.
Click the Upload button above to add an update.

You must be logged in to translate posts. Please log in or register.

Related Posts