shortocde inside form editor

hi guys,

i wrote a plugin for cf7 that outputs the prices calculated by dropdown values of multi page form page 1 in the 2nd form page. to do so, i used the plugin php shrotcode and a simple [prices] in form part 2. unfortunately since one of the latest updates this doesn’T work no more. i already tried a lot:

– shortcode in functions.php > cf7 data for price calculation not available
– is there a hook i could use to output the prices on form 2 head?
– maybe use js workaround with php to get the prices? but then it’s really hard to get the cf7 form data…

how could i achieve this?

code of my plugin:

<?
/*
Plugin Name: Contact Form 7 Preisberechnung Bavaria-Transfer
Plugin URI: https://ff-webdesigner.de/
Description: Berechnet die Kosten für Transferservices innerhalb Contact Form 7
Author: Frank Woelky
Version: 0.1b
Author URI: https://ff-webdesigner.de/
*/

include_once ("/www/htdocs/w0090f11/bavaria-transfer.net/wp-content/themes/enfold/functions.php");

function bavaria_preise_js() {
    echo '<script type="text/javascript" src="/wp-content/plugins/bavaria-preise/bavaria-preise.js"></script>';
}

add_action('wp_head', 'bavaria_preise_js');
add_action("wpcf7_before_send_mail", "bavaria_preise");

  
function bavaria_preise($cf7) {
	
    $wpcf = WPCF7_ContactForm::get_current();
	if(stripos($wpcf->form,"bavaria_preise()")===FALSE)return FALSE; // wenn nicht erster schritt formular
	// ansonsten:
	$p_data =cf7msm_get('cf7msm_posted_data');
	$csv=daten_einlesen();
	//echo "<pre>";
	//print_r( $p_data); 
	//echo "</pre>";
	//print_r($csv);
	
	// plz preis ermitteln
	for($z=2;$z<count($csv);$z++)	{
		if($csv[$z+2][0]==$p_data['abholort'])	{
			$plz_preis=$csv[$z+2][1];
			break;
		}
	}
	
		
	// transfertyp grundpreis
	switch ($p_data['transfertyp'])	{
		case "Sammeltransfer": $transfertyp=1; break;
		case "Express-Fahrt": $transfertyp=9; break;
		case "Einzelfahrt": $transfertyp=17; break;
		case "VIP-Service": $transfertyp=25; break;
	}
	if($p_data['transfertyp']=="Sammeltransfer"||$p_data['transfertyp']=="Express-Fahrt")
		$personen=$p_data['personen']-$p_data['unter14'];
	else $personen=$p_data['personen'];
	$preis_transfertyp=$csv[1][$transfertyp+$personen];
	
	// aufpreise für kinder
	if($p_data['transfertyp']=="Sammeltransfer"||$p_data['transfertyp']=="Express-Fahrt")
		$aufpreis_kinder=$p_data['unter14']*7;
	if($p_data['step']=='1-3')$pro_strecke=" pro Strecke";
	$preis=$plz_preis + $preis_transfertyp + $aufpreis_kinder;
	if($p_data['transfer']=='Hin- und Rückfahrt'&& $p_data['step']=='2-3')$preis*=2;
	$preis='<div id="ff_preis">Preis: <span id="ff_preis_inner">'.$preis.',00 € '.$pro_strecke.'</span></div>';
	
	return $preis;
}
function hidden_price_field()	{
	$preis=strip_tags(bavaria_preise());
	$output='<input class="wpcf7-form-control wpcf7-text hidden" type="text" value="'.$preis.'" name="preis">';
	return $output;
}

function daten_einlesen(){
	$datei=$_SERVER['DOCUMENT_ROOT'].'wp-content/plugins/bavaria-preise/preise.csv';
	$zeilen = file($datei);
		foreach($zeilen as &$zeile) {
			$csv[] = explode(";",$zeile); //parse the items in rows
		}
	return $csv;
}

function PLZ_dropdown($choices, $args=array()) {
	$csv=daten_einlesen();
    $choices = array();
	for($z=2;$z<count($csv);$z++)	{
		$choices[$csv[$z+2][0]]=$csv[$z+2][0];
	}
    return $choices;
}

add_filter('PLZ_dropdown', 'PLZ_dropdown', 10, 2);

?>