Dynamic Contact form 7 counter

id like like to create a dynamic counter for each available form,
store it as an array in the db.
how do i get the current form id

define( 'CF7_COUNTER', 'cf7-counter' );

function cf7dtx_counter($contact_form){
	$formid = $contact_form->ID;
    $formarray = get_option( 'cf7-counter' );
    foreach ($formarray as $key => $value){
    	if ($key == $formid) {
    		$value = $value + 1;
    	}else {
    		update_option( 'cf7-counter', $formarray[$formid][] = $value + 1);
    	}
    }
    return $value;
}
add_shortcode('CF7_counter', 'cf7dtx_counter');

function cf7dtx_increment_mail_counter($contact_form){
	$formid = $contact_form->ID;
    $formarray = get_option( 'cf7-counter' );
    foreach ($formarray as $key => $value){
    	if ($key == $formid) {
    		$value = $value + 1;
    	} else {
    		$formarray[$formid][] = $value;
    	}
    }
    return $formarray;
}
add_action('wpcf7_mail_sent', 'cf7dtx_increment_mail_counter');

https://www.ads-software.com/plugins/contact-form-7/