添加功能到提交按钮php

I have several divs which containing images. I want to add below or beside those divs a submit checkbox with two values and perform an action when the user press the submit button. My php code is the following:

echo '<div>';
echo '<img src="'. ($image) .'"  alt=""/>';
echo '</div>';

echo'<LABEL FOR="C1">Fashion</LABEL>';
echo'<INPUT TYPE="Checkbox" Name="fashion" ID="C1" Value="Fashion">';

echo'<LABEL FOR="C2"> Non Fashion </LABEL>';
echo'<INPUT TYPE="Checkbox" Name="nfashion" ID="C2" Value="Non Fashion">';
echo'<input type="submit" value="submit" action = "action.php">';

What is the functionality I should add in action.php? Is the correct way to add functionality yo submit button? In the action.php I want to write add in a text file the name of the image and the choice between fashion and nfashion. How can I perform the submit without leaving the main page I am already in, that with image div? Instead of using action.php can I use a php function which will be defined in the same php file?

see this tutorial: php_forms

echo '<form action="action.php" method="post">';
echo '<div>';
echo '<img src="'. ($image) .'"  alt=""/>';
echo '</div>';

echo'<LABEL FOR="C1">Fashion</LABEL>';
echo'<INPUT TYPE="Checkbox" Name="fashion" ID="C1" Value="Fashion">';

echo'<LABEL FOR="C2"> Non Fashion </LABEL>';
echo'<INPUT TYPE="Checkbox" Name="nfashion" ID="C2" Value="Non Fashion">';
echo'<input type="submit" value="submit" action = "action.php">';
echo '</form>';

The form is submitted, so the action attribute belongs to the from.

http://www.w3schools.com/html/html_form_attributes.asp

The button just triggers the submission of the form (type="submit"). There are other ways to submit a form, for example hitting enter key in a Textfield (if there is a submit button), or via javascript (document.formName.submit()).

  1. You can just http://pastebin.com/bg2Pv7CY

//Sry for not pasting code here, for unknown reason it was oputing onlyu labels values here.

2.What do you mean by functionality?