Untitled

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<html lang="en">
<head>
    <meta charset="UTF-8">
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    <title>Document</title>
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<body>


    <?php

$fp= fopen('zadanie.txt', 'w');

    for($i=0;$i<=30;$i++){

    $x=rand(1,15).';';
    fwrite($fp,$x);
    }
    $fs = fopen('zadanie.txt','r');
   /* while(!feof($fs)){
        echo fgetc($fs);
    }
   */
    $y=stream_get_contents($fs,500);
   $nazwa= preg_split('/[;]/', $y);

for($i=0;$i<=31;$i++){

     echo $nazwa[$i].' ' ;
}
 echo "<br>";
 echo "suma to: ";
    echo $suma=array_sum($nazwa);
    echo "<br>";
    echo "średnia to:". $suma/30;
    fclose($fs);


    ?>


</body>
</html>