PHP doenst catch a simple POST - php

Question

Here below is my code, i get strange results, for example the POST is not being caught by the PHP. If i add ($_SERVER['REQUEST_METHOD'] == 'POST') it is still not caught. It hould be a simple POST, what did i do wrong? The best i get out of this is the error message:
$url_message = 'Something went wro, please try again.';
Please help
if(isset($_POST["submit"])) {
$btc = $_POST['bitcoin'];
$eur = $_POST['euro'];
echo '1';
echo $btc;
echo '2';
echo $eur;
if($btc != "" && $eur != ""){
$user_idr = $_GET['id'];
$user_idreal = $LS->get_CU();
echo $LS->get_CU();
echo $user_idr;
if($user_idr == $user_idreal){
echo 'jemoder';
$cur = $btc;
$eur = $eur;
$user = $user_id;
$datetime = date('Y-m-d H:i:s');
$ip = $_SERVER['REMOTE_ADDR'];
if($LS->store_val($cur, $eur, $user, $datetime, $ip) != false){
$url_message = 'Gelukt';
header('Location: home.php?id=' . $header_n . '&mas=' . $url_message);
}else{
$url_message = 'niet gelukt';
header('Location: home.php?id=' . $header_n . '&mas=' . $url_message);
}
}else{
$header_n = $LS->get_CU();
$url_message = 'Something went wro, please try again.';
header('Location: home.php?id=' . $header_n . '&mas=' . $url_message);
}
}else{
$header_n = $LS->get_CU();
$url_message = 'Some fields were left blank.';
header('Location: home.php?id=' . $header_n . '&mas=' . $url_message);
}
}else{
echo 'hallo';
}
?>
<div class="col-md-9">
<div class="span9">
<div class="space-6"></div>
<div class="row-fluid">
<div class="span12">
<form class="form-horizontal formproperties" action="<?php echo $_SERVER['PHP_SELF'] ?>#form-textfield" method="POST">
<fieldset>
<div class="container">
<div class="row-fluid">
<div class="col-xs-12 col-sm-12 col-lg-12">
<div class="col-xs-12 col-sm-12 col-lg-6 logintextsupport text-center">
<h3 class="text-left">Buy <?php echo $form_titel;?></h3>
<hr />
<div class="form-group">
<label class="col-md-1 control-label" for="password"></label>
<div class="col-md-9">
<input id="<?php echo $form_id;?>" name="<?php echo $form_name;?>" type="text" placeholder="<?php echo $form_placeholder;?> *" class="form-control input-md" required="">
</div>
</div>
<div class="form-group">
<label class="col-md-1 control-label" for="password"></label>
<div class="col-md-9">
<input id="euro" name="euro" type="text" placeholder=" *" class="form-control input-md" required="">
</div>
</div>
<legend>Payment Method</legend>
<div class="form-group">
<label class="col-md-1 control-label" for="password"></label>
<div class="col-md-5">
<input type="radio" name="radio" id="radio1" /> <label for="radio1" class="inline">iDeal</label><br />
</div>
<div class="col-md-4">
<input type="radio" name="radio" id="radio3" /> <label for="radio3" class="inline">Ban Contact</label>
</div>
</div>
<hr />
<div class="form-group loginboxsupport">
<label class="col-md-12 col-lg-12" for="proceed"></label>
<div class="col-md-12 col-lg-12">
<button id="proceed" type="submit" name="submit" class="btn btn-success buttonali">SUBMIT</button>
</div>
</div>
<div style="height:0.5vw;"></div>
</div>
</div>
</div>
</div>
</fieldset>
</form>

Answer 1

The problem was in the HTML code, at the action there is the following code
action="<?php echo $_SERVER['PHP_SELF'] ?>#form-textfield"
So the action would be a link to itself, nothing on it. Had to add a user ID:
?id=<?php echo $user_id ?>
The complete action became:
action="<?php echo $_SERVER['PHP_SELF'] ?>?id=<?php echo $user_id ?>#form-textfield"
The total start of the form:
<form class="form-horizontal formproperties" action="home.php?id=<?php echo $user_id ?>#form-textfield" method="POST">