<?php

$kelimeler = array(
    "kelime1",
    "kelime2",
    "kelime3"
);


$sure = 600;


$baslangicZamani = time();

while (time() - $baslangicZamani < $sure) {
    $karisikKelime = $kelimeler[array_rand($kelimeler)]; 
    echo $karisikKelime . " ";
    usleep(100000); 
}

?>