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phpcheckboxposting

Checkboxes not posting in PHP

So I am trying to get the value from 3 checkboxes that will later be sent to a database, but for some reason they are not posting in PHP when im testing.

<table width="200" border="0">
 <tr>
  <td><img src="images/image1.jpg" ></td>
  <td><img src="images/image2.jpg" ></td>
  <td><img src="images/image3.jpg" ></td>
 </tr>
 <tr>
  <td><input type="checkbox" id="checkbox65" class="css-checkbox med"     name="avatar" value="image1"/>
   <label for="checkbox65" class="css-label med elegant" /></label></td>
  <td><input type="checkbox" id="checkbox66" class="css-checkbox med" name="avatar" value="image2"/>
   <label for="checkbox66" class="css-label med elegant" /></label></td>
  <td><input type="checkbox" id="checkbox67" class="css-checkbox med" name="avatar" value="image3"/>
   <label for="checkbox67" class="css-label med elegant"  ></label></td>
  </tr>
 </table><br>

and I am posting in another page:

<?php 
if(isset($_POST['submit'])){$avatar=$_POST['avatar'];} 
echo $avatar; ?>

but I am getting 

 Undefined index: avatar on line 14

I have form tags, everything is correct, that's how it's a different question, Everything else on the page posts correctly, except this one thing

Solution

  • I think you have to put a <form> tag around your inputs. And in that tag you should specify (as action) the php file that'll reviece the data ;)

    Take a look at that : http://www.html-form-guide.com/php-form/php-form-checkbox.html

    Edit:

    As per your original post, you need to treat your checkboxes as an array.

    Sidenote: You should always do an edit underneath your original question and marked as an edit, in order not to overwrite the original.

    I.e.: name="avatar[]" adding brackets around each element bearing the same name attribute. You then need to use a foreach loop, while using a conditional statement and placing the POST array for it and its variable inside that loop.

    <form action="reg_test.php" method="post">
                                Username:<br>
                                <input type="text" name="username"><br>

                                Password:
                                <input type="password" name="password" ><br>

                                E-mail:
                                <input type="text" name="email" ><br>

                                Avatar:

   <table width="200" border="0">
  <tr>
    <td><img src="images/avatars/image1.jpg" ></td>
    <td><img src="images/avatars/image2.jpg" ></td>
    <td><img src="images/avatars/image3.jpg" ></td>
  </tr>
 <tr>
<td><input type="checkbox" id="checkbox65" class="css-checkbox med" name="avatar[]" value="image1"/>
    <label for="checkbox65" class="css-label med elegant" /></label></td>
<td><input type="checkbox" id="checkbox66" class="css-checkbox med" name="avatar[]" value="image2"/>
    <label for="checkbox66" class="css-label med elegant" /></label></td>
<td><input type="checkbox" id="checkbox67" class="css-checkbox med" name="avatar[]" value="image3"/>
    <label for="checkbox67" class="css-label med elegant"  ></label></td>
</tr>
</table><br>
<input type="submit" value="Register" name="submit">
</form>

<?php 
error_reporting(E_ALL);
ini_set('display_errors', 1);

if(isset($_POST['submit'])){
    $username=$_POST['username'];
    $password=$_POST['password'];
    $email=$_POST['email'];

if(isset($_POST['avatar'])){

    $avatar=$_POST['avatar'];

   foreach ($avatar as $avatars=>$value) {
             echo "Avatars : ".$value."<br />";
        }

echo $username.",".$password.",".$email."</br>";

    }

} // brace for if(isset($_POST['submit']))

?>