Generate random domains

randomDomains.php

<?php
$dict = file('basicWords');
$file = 'domains.txt';
$numOfDomains = 300;

$content = '';
for ($i=0; $i < $numOfDomains; $i++) {
    $content .= generateRandomDomain($dict) . "\n";
}
file_put_contents($file, $content);

function generateRandomDomain($dict, $numOfWords = 3, $glue = '-'){
    $words = [];
    for ($i = 0; $i < $numOfWords; $i++) {
        $newWord = trim($dict[rand(1, count($dict))]) ?: 'empty';
        $words[] = strtolower($newWord);
    }
    return implode($glue, $words) . ".com";
}