我需要在作業(yè)中設置Cookie。當我使用字符串設置它們時，即setcookie('Name', 'John', time() + 86400)它可以工作，但是當使用PHP變量時，即setcookie('Name', $name, time() + 86400)未設置cookie。我不確定自己在做什么錯。我已經(jīng)在頁面上回顯了$ name變量，它顯示了出來，所以我知道這已經(jīng)設置了。當我使用顯示Cookie時$_COOKIE['Name']，它在接收到字符串時才起作用，但在時則不起作用PHP variable。order01.php<form action="order02.php" class="formLayout"> <div class="formGroup">  <label>First name:</label>  <input type="text" name="fname" class="textbox" autofocus   required placeholder="First name" title="first name"   maxlength="20" pattern="[A-Za-z'-]{2,20}"> </div> <div class="formGroup">  <label> Car model:</label>  <div class="formElements">   <input type="radio" name="model" required value="Mustang">Ford Mustang<br>   <input type="radio" name="model" required value="Subaru">Subaru WRX STI<br>   <input type="radio" name="model" required value="Corvette">Corvette<br>  </div> </div><?php $name = $_GET['fname']; $model = $_GET['model']; //write cookies for name and model for 1 day setcookie('Name', $name, time() + 86400); setcookie('Model', $model, time() + 86400);?>order02.phpif(isset($_COOKIE['Name'])){ echo "Cookie ".$_COOKIE['Name']." is set";}else{ echo "<div class='pageContainer'>"; echo "<h2 class='containerText, centerText'>Failed to validate inputs"; echo "<br><br>"; echo "<a href='order01.php'><button>Go Back</button></a>"; echo "</div>"; exit();}