setcookie（）PHP不使用变量

Question

I need to set cookies in an assignment. When I set them using a string, ie setcookie('Name', 'John', time() + 86400) it works, but when using a PHP variable, ie setcookie('Name', $name, time() + 86400) the cookie is not set.

I'm not sure what I am doing wrong. I have echoed out the $name variable on my page and it shows up so I know that is being set. When I display the cookie using $_COOKIE['Name'], it works when it received a string, but doesn't when it's a 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.php

if(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();
}

Answer 1

There are few issues in your code, first, there is no closing </form> tag and second you have to submit your form on order01.php where you are saving your cookie so try this and it will work

Order01.php

<form action="order01.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>

 <input type="submit" value="submit">
</div>
</form>

Order02.php

  <?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);

if(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();
  }

?>