Untitled

<?php
  //  include('database.php');
?>

<html>
    <head>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css">
    </head>
    <body>
    <form action="#" method="post">
      <div class="container-fluid no-padding">
        <div class="row text-center no-padding">
          <div class="col-lg-12">
            <div class="row text-center no-padding">
              <div class="col-lg-12">
                <h3>Wpisz kod PHP: </h3>
                <textarea name="textarea" id="textarea"></textarea>
              </div>
              <div class="col-lg-12">
                <input type="submit" name="submit" id="submit" class="btn btn-primary " value="Wynik"/>
              </div>
            </div>
          </div>
          <div class="col-lg-12">
            <div class="row text-center" >
              <div class="col-lg-12">
                <div class="header-table1">
                </div>
                <?php
    if(isset($_POST["submit"]) && ($_POST["textarea"] != ''))
    {
      $servername = "localhost";
      $username = "phpmyadmin";
        $password = "COnexant270392";
        $dbname = "benchmark";

      // Create connection
      $conn = new mysqli($servername, $username, $password, $dbname);
      // Check connection
      if ($conn->connect_error) {
          die("Connection failed: " . $conn->connect_error);
      }
        $head="";
        $tail="";
        $tx=$_POST["textarea"];
        if(strpos($tx, 'function') !== false){
            $head=substr($tx,0,strpos($tx, 'function')-1);
            $tail=substr($tx,strpos($tx, 'function'));
            echo "Word Found!";
        } else{
            $head=$tx;
            $tail="";
            echo "Word Not Found!";
        }
        //Zapis pobranego kodu do pliku
        $text = '';

        if($tail!="")
            $text .=$tail;

        $text .='
        $time_start = microtime(true);
        ';

        $text .= $head;

        $text .= '
        $time_end = microtime(true);
        $temp_time = $time_end - $time_start;
        $format_time = number_format($temp_time, 6);
        $t = $format_time * 1000;';

        $fp = fopen("test.php", "w");
        fputs($fp, $text);
        fclose($fp);

        $time_tab = array();
        $sum = 0;
        $deviation_sum = 0;

        //Wykonanie 20 pomiarow predkosci wykonywania sie kodu wraz z zapisem ich do bazy w tabeli ,,output''
        for($test_value=0; $test_value<20; $test_value++)
        {


            ob_start();
			eval(file_get_contents('test.php'));
            ob_end_clean();

            $time_tab[] = $t;
            $sum = $sum + $time_tab[$test_value];

            $sql= "UPDATE `output` SET `time` = '$t' WHERE `output`.`id` = $test_value+1";

           if ($conn->query($sql) !== TRUE)
            {
            echo 'error';
            }
        }

        //Wynik sredniej arytmetycznej pomiarow
        $arithmetic = $sum/20;
        //print_r($time_tab);
        //print_r($aritdmetic);

        //Wyliczenie odchylenia standardowego
        for($test_value=0; $test_value<20; $test_value++)
        {
            $deviation_sum = $deviation_sum + pow(($time_tab[$test_value]-$arithmetic), 2);
        }

        $temp_deviation = $deviation_sum/20;
        $deviation = number_format($temp_deviation, 9);
        //echo "Odchylenie:";
        //print_r($deviation);

        //Zapisanie odchylenia oraz sredniej do bazy w tabeli ,,result''
        $sql= "INSERT INTO `result` (`id`, `arithmetic`, `deviation`) VALUES (NULL, $arithmetic, $deviation)";
        if ($conn->query($sql) !== TRUE)
        {
           echo 'error';
        }

        $conn->close();

        $table = '<h3>Na podstawie 20 pomiarów czasów wczytywania się twojego kodu</h3><div class="tables"><div><table class="table table-bordered">';
            $table .= '<tr>';
            $table .= '<td scope="col">';
            $table .= 'Nr pomiaru';
            $table .= '</td scope="col">';

            $table .= '<td scope="col">';
            $table .= 'Wynik [ms]';
            $table .= '</td scope="col">';
            for($t=0; $t<10; $t++)
            {
            $table .= '<tr>';
            $table .= '<td scope="col">';
            $table .= $t+1;
            $table .= '</td scope="col">';

            $table .= '<td scope="col">';
            $table .= $time_tab[$t];
            $table .= '</td scope="col">';
            }

        $table .= '</table></div>';

        $table .= '<div><table class="table table-bordered">';
        $table .= '<tr>';
        $table .= '<td scope="col">';
        $table .= 'Nr pomiaru';
        $table .= '</td scope="col">';

        $table .= '<td scope="col">';
        $table .= 'Wynik [ms]';
        $table .= '</td scope="col">';
        for($t=10; $t<20; $t++)
        {
        $table .= '<tr>';
        $table .= '<td scope="col">';
        $table .= $t+1;
        $table .= '</td scope="col">';

        $table .= '<td scope="col">';
        $table .= $time_tab[$t];
        $table .= '</td scope="col">';
        }

        $table .= '</table></div></div>';
        echo $table;

        $table_result = '<h3>została obliczona średnia oraz odchylenie standardowe</h3><div class="tables"><div><table class="table table-bordered">';
        $table_result .= '<tr>';
        $table_result .= '<td scope="col">';
        $table_result .= 'Średnia pomiarów [ms]';
        $table_result .= '</td scope="col">';

        $table_result .= '<td scope="col">';
        $table_result .= 'Odchylenie standardowe';
        $table_result .= '</td scope="col">';

        $table_result .= '<tr>';
        $table_result .= '<td scope="col">';
        $table_result .= $arithmetic;
        $table_result .= '</td scope="col">';

        $table_result .= '<td scope="col">';
        $table_result .= $deviation;
        $table_result .= '</td scope="col">';

        $table_result .= '</table></div></div></div>';
        echo $table_result;

        $your_result = '<div class="col-lg-12">';
        $your_result .= '<div id="result"><h1>Twój wynik to:</h1>';
        $your_result .= '<h3>';
        $your_result .= $arithmetic;
        $your_result .= ' ms</h3></div>';
        echo $your_result;
    }
    ?>

            </div>
          </div>
        </div>
      </div>
    </form>
    </body>
</html>

<style>

.container-fluid {
    padding: 20px !important;
}

textarea {
    width: 500px;
    height: 80%;
    border-radius: 5px;
    font-size: 20px;
}

#submit {
    margin: 20px;
}


.header-table1 h1 {
    font-size: 35px;

}

table {
    width: 200px !important;
    text-align: center;
}

.tables {
    display: flex;
    justify-content: center;
}

.tables div{

}

h3 {
    margin: 0; padding: 0;
    padding-left: 20px;
    padding-right: 20px;
    margin-bottom: 20px;
    margin-top: 30px;
}

#result {
    color: green;
}

.no-padding {
    margin: 0 !important;
    padding: 0 !important;
}

</style>