Forminator - textarea minimum words limit

forminator-textarea-minimu-words-limit.php

<?php 

/**
* Plugin Name: [Forminator] Set minimum number of words limit for textarea field
* Plugin URI: https://premium.wpmudev.org/
* Description: Sets minium number of words for textarea field
* Author: adczk
* Author URI: https://premium.wpmudev.org/
* License: GPLv2 or later
*
* Tested with Forminator 1.22.1
* 
* config explained in code comment
*/


add_filter( 'forminator_custom_form_submit_errors', 'check_textarea_minimum_words', 99, 3 );
function check_textarea_minimum_words( $submit_errors, $form_id, $field_data_array ) {
	
  # CONFIG HERE
	
	$form_ids = array( 2245 ); // IDs of forms to check; if more than one, separate by comma 
	$text_field = 'textarea-1'; // textarea field ID
	$text_words = 10; // minimum number of words to allow
	$error_msg = 'Text too short!'; // error message
  
  # END OF CONFIG
	
	
	if ( in_array( $form_id, $form_ids ) ) {
		
		$words = 0;
		
		foreach( $field_data_array as $arr ) {
	
			if ( $arr['name'] == $text_field ) {
				$text_val = $arr['value'];
				$words = preg_split( '/[\s]+/', $arr['value'] );
				if ( is_array( $words ) && count( $words ) < $text_words ) {
					$submit_errors[][$text_field] = $error_msg;
				}
			}
			
		}
	
	}

	return $submit_errors;
}