php - Changing Wordpress function

one text

Solution:

Using array_rand

You could use array_rand in php to select a random element from an array, here is the official documentation from php.net

and your code will be something like:

for($i=0 ; $i<5 ; $i++){
    $term_list .=  $terms [array_rand($terms )] . ', ';
}
$term_list = rtrim($term_list, ', ');

// replace the last comma with 'and'
$portion = strrchr($term_list , ',');
$term_list = str_replace($portion, (" and" . substr($portion, 1, -1)), $term_list );

Using shuffle and array_slice

Another solution to pick up random elements from an array could be using shuffle to randomly shuffle the elements of an array and then using array_slice to pick up certain elements.

Here is an example of code:

shuffle($terms );
print_r(array_slice($terms , 0, 3));