Answered Help me get my head round this xPDO stuff please!

$path = MODX_CORE_PATH . 'components/dataease/';
// get POST variable this is captured
$accNo = $_POST['accNo'];
$output = '';

// Check if form has been submitted and that the accNo exists in the db
if (isset($_POST['submit']) && $_POST['accNo'] == 'accNumber') {
    // Get info from the database
    $query = $modx->newQuery('accno');
    $query->select($xpdo->getSelectColumns('Dataease','Dataease','',array('*')));
    $query->where(array('accNumber:LIKE' => '$accNo'));
    
    // Place it into a variable for output
    $dataease = $modx->getCollection('Dataease',$query);
    // Count the returned rows, should only ever be 1
    $output .= '<p>Total: '. count($dataease) . '</p>';
    
    // Show the found data
    foreach($dataease as $sql) {
        $fields = $sql->toArray();
        $output .= $modx->getChunk('showData', $fields);
}
    return $output;

} else {
    // Get the form chunk
    $form = $modx->getChunk('dataEntryForm');
    return $form;
}

<h2>Enter Account Number:</h2>
<form method="POST" action="">
    <input name="accNo" type="text" value="" />
    <input name="submit" type="submit" value="submit" />
</form>

&& $_POST['accNo'] == 'accNumber'

$path = MODX_CORE_PATH . 'components/dataease/';
var_dump($_POST['submit']);
var_dump($_POST['accNo']);

// get POST variable this is captured
$accNo = $_POST['accNo'];
$output = '';


// Check if form has been submitted
if (isset($_POST['submit'])) {
    // Get info from the database
    $query = $modx->newQuery('accno');
    $query->select($modx->getSelectColumns('Dataease','Dataease','',array('*')));
    $query->where(array('accNumber:LIKE' => '$accNo'));
    var_dump($query);
    // Place it into a variable for output
    if (!$query) {
        return "Query failed";
    } else {
    $dataease = $modx->getCollection('Dataease',$query);
    // Count the returned rows, should only ever be 1
    $output .= '<p>Total: '. count($dataease) . '</p>';
    
    // Show the found data
    foreach($dataease as $sql) {
        $fields = $sql->toArray();
        $output .= $modx->getChunk('showData', $fields);
    } 
    }
    return $output;

} else {
    // Get the form chunk
    $form = $modx->getChunk('dataEntryForm');
    return $form;

}