occurencies

<?php
if(!defined("STDIN")) {
define("STDIN", fopen('php://stdin','r'));
}
echo "Count Occurences of word in a file \n\n";
$filename = 'st.txt';//(string) $_SERVER['argv'][1];
echo "\n";
$file = file($filename);
$words = [];

foreach($file as $line){
    $temp = explode(' ', $line);
    for($i = 0; $i < count($temp); $i++){
        array_push($words, $temp[$i]);
        $words[$i] = utf8_encode($words[$i]);
    }
}
var_dump($words);
print_r(array_count_values($words));