Checking if form is submitted or not ? how to send array in between pages ?

[Nuv]

Following is the form.Now i want to see if submit button is pressed or not.Usually if html had

 

<input type="submit" value="Submit" name = "submit" />

 

i would simply use

<?php
if(isset($_POST['submit']))
?>

 

But below is the form which has an image as a submit button

 

Form -

<form action="" method="post" id="sendemail">
            <ol>
              <li>
                <label for="name">Name (required)</label>
                <input id="name" name="name" class="text" />
              </li>
              <li>
                <label for="email">Email Address (required)</label>
                <input id="email" name="email" class="text" />
              </li>
              <li>
                <label for="email">Phone number</label>
                <input id="phone" name="phone" class="text" />
              </li>
               <li>
                <label for="address">Address(required)</label>
                <input id="address" name="address" class="text" />
              </li>
              <li>
                <label for="city">City(required)</label>
                <input id="city" name="city" class="text" />
              </li>
              <li>
                <label for="state">State(required)</label>
                <input id="state" name="state" class="text"/>
              </li>
               <li>
                <label for="zipcode">Pincode/Zipcode(required)</label>
                <input id="zipcode" name="zipcode" class="text" />
              </li>
              <li>
                <input type="image" name="submit" id="imageField" src="images/submit.gif" class="send" />
                <div class="clr"></div>
              </li>
            </ol>
          </form>   

 

How should i check if form is submitted or not when instead of submit button there is an image ?

 

----------------------------------------------------------------- Alternative Solution ----------------------------------------------------------------------------

 

I tried sending it to other page but then i had to send an array back to this page and i didn't know how to send that either.I tried

<?php
$error = serialize($error);
  echo "<meta http-equiv='refresh' content='0;url=about.php?array=".$error."'> ";
?>

 

But even after

 

$array = unserialize($array); 

 

$array contained nothing.

 

Can someone please show me how to send in array in between pages for future ?

[flolam]

Google: "php check if form was submitted" -> first result ->

if($_SERVER['REQUEST_METHOD'] == "POST") 

or

<input type='hidden' name='submit' />