Elenco file PHP

Elenco file PHP nella cartella:

Sorgente di Controllo_tipi_variabili.php:

<!DOCTYPE html>
<html lang="it">
<head>
  <meta charset="utf-8">
  <title>Controllo Tipi Variabili</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      background: #0f1724;
      color: #e6eef6;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100vh;
      margin: 0;
    }
    .container {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 12px;
      padding: 24px;
      max-width: 800px;
      width: 100%;
      box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    }
    h1 {
      margin-top: 0;
      font-size: 22px;
      color: #38bdf8;
      text-align: center;
    }
    .output {
      background: rgba(255,255,255,0.08);
      padding: 16px;
      border-radius: 8px;
      font-family: monospace;
      line-height: 1.6;
    }
    hr {
      border: none;
      border-top: 1px dashed rgba(255,255,255,0.3);
      margin: 16px 0;
    }
    h5 {
      margin: 8px 0;
      color: #facc15;
    }

    button {
      margin: 20px auto 0 auto;
      display: block;
      background: #387ef8;
      color: white;
      padding: 10px 15px;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      transition: background 0.3s;
    }
    button:hover {
      background: #38bdf8;
    }

  </style>
</head>
<body>
  <div class="container">
    <h1>Controllo Tipi Variabili</h1>
    <div class="output">
      <?php
       $i=5;
       $d=1.33;
       $s="ciao";
       $v=array(1,2,3);

       echo "i = $i ? ".gettype($i)."<br>";
       echo "d = $d ? ".gettype($d)."<br>";
       echo "s = $s ? ".gettype($s)."<br>";
       echo "v = array(".implode(", ", $v).") ? ".gettype($v)."<br>"; 

       if (gettype($i) == "integer")
         echo "<br><strong>i e' un intero</strong>"; 
       else if(gettype($d) == "double")
         echo "<br><strong>d e' un double</strong>";
       else if(gettype($s) == "string")
         echo "<br><strong>s e' una stringa</strong>";
       else if(gettype($d) == "array")
         echo "<br><strong>v e' un array</strong>";

       $tipi = array(
         "integer" => "intero",
         "float" => "numero float",
         "double" => "numero double",
         "string" => "stringa",
         "array" => "vettore"
       ); 

       echo "<br><hr><h5>Stampa Vettore</h5>";
       $variabili = array($i,$d,$s,$v);
       error_reporting(E_ERROR | E_PARSE);

       foreach($variabili as $tipo){
         if(is_array($tipo)){
           echo "[".implode(", ", $tipo)."] ? ".$tipi[gettype($tipo)]."<br>";
         } else {
           echo "$tipo ? ".$tipi[gettype($tipo)]."<br>";
         }
       }
      ?>
    </div>
    <button onclick="history.back()">Torna alla Home</button>
  </div>
</body>
</html>