How to output multiple lines randomly in php?

Question

PHP

There is a phrase generator script. It includes three files:
1. comments.php - there are lines with phrases in it
2. index.php - phrase output on the page
3. script.php - random phrase generation

The bottom line is that on the page the phrase is generated randomly one at a time. How to output multiple lines randomly? Can use for or while or foreach condition?

script.php file

<?php

    $famtxt = file('comments.php'); 
  $famstr = $famtxt[ array_rand($famtxt) ]; 

    header("Cache-Control: no-cache");
    $prefixes = array($famstr);
    $k = mt_rand (0, 99);
    mt_srand (time()+(double)microtime()*$k*95987);
    echo $prefixes[mt_rand(0,count($prefixes)-1)];
    
?>

index.php file

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

 <script type="text/JavaScript">
 $(document).ready(function(){
   $("#generate").click(function(){
   $("#quote p").load("script.php");
   });
 });
 </script>

<div id="quote"><p>примерный текст</p></div>

<input type="submit" id="generate" value="Generate!"><br />

comments.php file

<?php
фраза 01
фраза02
фраза03
?>