Multi value in php

Hello Dear Php Experts, I Need Some Help, Look,
$key = "2a587s45";

I Want to add more keys randomly, look,

here some keys, 25d25484d2 | 58s8ee2d6dd5 | yycd8fgg1 | 2a587s45
I want to add these in $key = randomly
Any Idea ?

 

$list = array("one", "two", "three");
$random_item = $list[rand(0, count($list) - 1)];
 
echo $random_item;

PHP:

If those keys come as a string:

$keys = "25d25484d2 | 58s8ee2d6dd5 | yycd8fgg1 | 2a587s45";
$list = explode(" | ", $keys);
$random_item = $list[rand(0, count($list) - 1)];
 
echo $random_item;

PHP:

 

To add on to what ActiveFrost said you need to seed the rand() generator to ensure that the number is unique and not following a pattern.

Read here: http://php.net/manual/en/function.srand.php

 

ThaNks, And any idea about line wise ?
1st 25d25484d2 show, then 58s8ee2d6dd5 after that yycd8fgg1 and last 2a587s45 ..

 

As they are Randomly generated Strings ... we cannot make the desired random numbers in an order !!!