Php Get and post function not working [closed] - php

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I make a simple app without any database in php .just simple post method when i write my input text field and submit it send me to another post and put that input data in that field where i want if work in xammp fine but on live server it show me nothing here is my codes.........
<form action='show.php' method='POST'>
<input type="text" size="30" value="Enter Your Course Code Like &nbsp
&nbsp 'CS101'..." name="text" >
<button name="submit"></button>
</form>
and my show.php code is
<?php
if(isset($_POST['submit'])){
$N = $_POST["text"];
echo ''.$N.'_movie';
}
?>
Where i am wrong?

Answer 1

add type <button name="submit" type="submit"></button>
Tip: Always specify the type attribute for a element. Different browsers use different default types for the element.
also remove name="submit"

Answer 2

You used html element button. It is good choice if you want to add any event with javascript. But if you need to send form normal with backend, you need to use
<input type="submit" value="send" />
OR
<button type="submit">send</button>
the type="submit" mark button as submit form button. You ommited the type so you created only button element.Equivalent for button is
<input type="button" value="Click me" onclick="msg()">
But button does'n invoke send form to the backend.

Answer 3

I think $_POST['submit'] is not set because it doesn't have a value.
Change:
<button name="submit"></button>
To:
<button name="submit" value="1">Submit</button>
Usually you would use a type="submit", then to set the button text you use value:
<input type="submit" value="Submit" />
And now $_POST["submit"] automatically has a value already.