Gravity forms validation for IP address, valid URLs, and regex

functions.php

<?php
add_filter('gform_validation_1', 'ip_validation');
	function ip_validation($validation_result){
		$form = $validation_result["form"];
//validate input 9 on form 1 for valid IP
	if($_POST['input_9'] != filter_var($_POST['input_9'], FILTER_VALIDATE_IP)){
		$validation_result["is_valid"] = false;
		foreach($form["fields"] as &$field){
			if($field["id"] == "9"){
				$field["failed_validation"] = true;
				$field["validation_message"] = "Please enter a valid ip";
					break;
				}
			}
		}
//validate input 11 on form 1 for valid IP
        if($_POST['input_11'] != filter_var($_POST['input_11'], FILTER_VALIDATE_IP)){
                $validation_result["is_valid"] = false;
                foreach($form["fields"] as &$field){
                        if($field["id"] == "11"){
                                $field["failed_validation"] = true;
                                $field["validation_message"] = "Please enter a valid ip";
                                        break;
                                }
                        }
                }
//validate input 13 on form 1 for valid IP
        if($_POST['input_13'] != filter_var($_POST['input_13'], FILTER_VALIDATE_IP)){
                $validation_result["is_valid"] = false;
                foreach($form["fields"] as &$field){
                        if($field["id"] == "13"){
                                $field["failed_validation"] = true;
                                $field["validation_message"] = "Please enter a valid ip";
                                        break;
                                }
                        }
                }
//validate input 10 on form 1 for valid IP
	if($_POST['input_10'] != filter_var($_POST['input_10'], FILTER_VALIDATE_URL)){
                $validation_result["is_valid"] = false;
                foreach($form["fields"] as &$field){
                        if($field["id"] == "10"){
                                $field["failed_validation"] = true;
                                $field["validation_message"] = "Please enter a valid URL";
                                        break;
                                }
                        }
                }
//validate input 12 on form 1 for valid URL
        if($_POST['input_12'] != filter_var($_POST['input_12'], FILTER_VALIDATE_URL)){
                $validation_result["is_valid"] = false;
                foreach($form["fields"] as &$field){
                        if($field["id"] == "12"){
                                $field["failed_validation"] = true;
                                $field["validation_message"] = "Please enter a valid URL";
                                        break;
                                }
                        }
                }
//validate input 14 on form 1 for valid URL
        if($_POST['input_14'] != filter_var($_POST['input_14'], FILTER_VALIDATE_URL)){
                $validation_result["is_valid"] = false;
                foreach($form["fields"] as &$field){
                        if($field["id"] == "14"){
                                $field["failed_validation"] = true;
                                $field["validation_message"] = "Please enter a valid URL";
                                        break;
                                }
                        }
                }
//validate input 17 on form 1 for filtering special chars, only allowing numbers, letters, spaces, and .!
        if($_POST['input_17'] != filter_var($_POST['input_17'], FILTER_VALIDATE_REGEXP,array("options"=>array("regexp"=> "/^[a-zA-Z0-9,.!? ]*$/" )))){
                $validation_result["is_valid"] = false;
                foreach($form["fields"] as &$field){
                        if($field["id"] == "17"){
                                $field["failed_validation"] = true;
                                $field["validation_message"] = "Please only use letters, numbers, and spaces.";
                                        break;
                                }
                        }
                }
//validate input 16 on form 1 for filtering special chars, only allowing numbers, letters, spaces, and .!
        if($_POST['input_6'] != filter_var($_POST['input_6'], FILTER_VALIDATE_REGEXP,array("options"=>array("regexp"=> "/^[a-zA-Z0-9,.!? ]*$/" )))){
                $validation_result["is_valid"] = false;
                foreach($form["fields"] as &$field){
                        if($field["id"] == "6"){
                                $field["failed_validation"] = true;
                                $field["validation_message"] = "This doesn't seem like a valid host.";
                                        break;
                                }
                        }
                }


	$validation_result["form"] = $form;
	return $validation_result;

	}




?>