Random word generating stuck on the same word in PHP

Question

Hey guys I'm new to PHP and I wanted to make a page that gets a random word from a text file and here is the code:

<?php
$chosen="Word";
function get(){
    $lines= file ("words.txt");
    $words=count($lines);
    $chosen=$lines[rand(0 ,$words - 1)];
    return $chosen;
}
?>

And then I call it from JS:

word = <?php echo json_encode(get()); ?>;
document.getElementById("button").innerHTML = word

The problem I get is the first time the function returns a random word, but after that it's the exact same word over and over.

Answer 1

If PHP is capable of generating your JS code and you prefer to not get messy with AJAX then try this:

index.php

<script>
// Get PHP to create a JS array
var all_words = <?php echo json_encode(file("words.txt")); ?>;

// Create a JS function to fetch a random word
function get_word(){
    // Don't go out of bounds and return a word
    return all_words[Math.floor((Math.random() * (all_words.length - 1)) + 1)];
}

// Call the function and enjoy :)
document.getElementById("button").innerHTML = get_word();
</script>