HTML Form Action

It is actually required to perform some action when the form is submitted

There are two ways to perform action:
1. GET Method
2. POST Method
You need to define action Attribute inside <form> Tag first, it define on which page you are sending the form data
Syntax is below

<form action="action_page.php">
<!-- Form elements are defined here-->
</form>

Note! If the action attribute is omitted then the action attribute is set to the current page by default

Syntax is below

&lt!--GET Method-->
<form action="action_page.php" method="get">
      <!-- Form elements are defined here-->
</form>

&lt!--POST Method-->
<form action="action_page.php" method="post">
      <!-- Form elements are defined here-->
</form>

Note! If method is not set, Default method when submitting form data is GET
Note! name Attribute should be compulsory, otherwise it will not send that particular input field

Example:

Get Method Example

<!DOCTYPE html>
<html>
<head><title>User Form Get Example</title></head>
<body>
<form action="action_page.php" method="get">
First name: <input type="text" name="first_name" /><br>
Last name: <input type="text" name="last_name" /><br>
<input type="submit" value="Submit">
</form>
</body>
</html>

action_page.php file looks like:

<!DOCTYPE html>
<html>
<head><title>Sample PHP File </title></head>
<body>
<?php
$first_name = $_REQUEST['first_name'];
$last_name = $_REQUEST['last_name'];
echo "Welcome <b> ".$first_name." ".$last_name."</b>";
?>
</body>
</html>

You will learn PHP in new Tutorial

About Get Method !
- GET Method has limitation on amount of data (maximum URL length is 2048 characters)
- When GET is used, the submitted form data will be visible in the page URL field
- Like above example, on submitting in the URL, it looks like:
```
 /action_page.php?first_name=XXXXX&last_name=XXXX
```
- Note! Don't use when submitting any sensitive information

Example:

POST Method Example

<!DOCTYPE html>
<html>
<head><title>User Form POST Example</title></head>
<body>
<form action="action_page.php" method="post">
Username: <input type="text" name="username" /><br>
Password: <input type="password" name="pass" /><br>
<input type="submit" value="Submit">
</form>
</body>
</html>

action_page.php file looks like:

<!DOCTYPE html>
<html>
<head><title>Sample PHP File </title></head>
<body>
<?php
$u_name = $_REQUEST['username'];
$pass = $_REQUEST['pass'];
if($u_name=="Rahul" && $pass=="password"){
echo "Welcome <b> Rahul </b> you are secularly logged-in!";}
else{
  echo "Sorry your USERNAME or Password is incorrect! ";
}
?>
</body>
</html>

You will learn PHP in new Tutorial

About POST Method !
- No limitation on amount of data
- More Secure than GET Method
- Never cached
- can't be bookmarked
- It's used when using some sensitive data (like: password,card no)