included php code is not executing on submit - php

Question

I'm including a a php code with angular ui routing
the problem is if the millitary.php :
`
<div class="jumbotron">
<div class="page-header">
<h1>Millitary Loot Table</h1>
</div>
<?php
$MillitaryLoot = array(
'M4A4' => 47,
'AWP' => 2,
'Karambit' => 1,
'Famas' => 50
);
$newMillitaryLoot = array();
foreach ($MillitaryLoot as $item=>$value)
{
$newMillitaryLoot = array_merge($newMillitaryLoot, array_fill(0, $value, $item));
}
$myLoot = $newMillitaryLoot[array_rand($newMillitaryLoot)];
if (isset($_POST['submit']))
{
echo "\n" . "<h2 style='display:inline;'>Item: </h2>" . '<p class="text-center text-danger">' . $myLoot . '</p>' . "</br>";
}
?>
<form name="Gamble" action="" method="post" target="_self">
<button name="submit" type="submit" class="btn btn-primary">Gamble</button>
</form>
</br>
</div>
`
the include app.js
$stateProvider
.state('millitary', {
url: '/millitary',
templateUrl: 'inc/millitary.php'
})
is included into the index.php the submit button basicly not executes the code above the form
so basically i want the php code to execute in the index.php to keep the ui instead of jumping into the executing php file and losing the index.php linked styles and navigation
edit : if i run the code normaly it works but it doesn't if it gets included
edit2 : everything outside the if statement works basically if i add a echo "test"; it outputs but inside the if it does not so the problem is the form and the connection to the if statement
kind regards, daniel

Answer 1

Change your HTML to the following:
<form id="form" name="Gamble" method="post">
<button id="form" name="submit" type="submit" class="btn btn-primary">Gamble</button>
</form>
You can submit your form with a button with HTML5 but it must share the same ID of the form. Also keep in mind this will only be supported with browsers that support HTML5 so if not they won't be able to submit the form.
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button
The other alternative is to use...
<input name="submit" type="submit" class="btn btn-primary" value="Gamble">
as #gbestard suggested.

Answer 2

Change
<button name="submit" type="submit" class="btn btn-primary">Gamble</button>
to
<input name="submit" type="submit" class="btn btn-primary" value="Gamble" />
In order to submit you need a type submit input or use some client side script as javascript