custom contact form 7 tags

custom-cf7-tags.php

<?php
//contact form 7 extras
//author email
wpcf7_add_shortcode('expert_email', 'wpcf7_expert_email_shortcode_handler', true);

function wpcf7_expert_email_shortcode_handler($tag) {
	if (!is_array($tag)) return '';

	$name = $tag['name'];
	if (empty($name)) return '';
	if(isset($_GET['author_name'])) :
		$curauth = get_userdatabylogin($author_name);
	else :
		$curauth = get_userdata(intval($author));
	endif;
	if (!isset($curauth->ID)){
		global $wp_query;
		$curauth = $wp_query->get_queried_object();
	}
	$html = '<input type="hidden" name="' . $name . '" value="' . $curauth->user_email . '" />';
	return $html;
}

/*
* Usage: in contact form 7 form area add 
* [expert_email unique_name] 
* and in to email address add 
* [unique_name] 
*/



//sender IP
wpcf7_add_shortcode('sender_ip', 'wpcf7_sender_ip_shortcode_handler', true);

function wpcf7_sender_ip_shortcode_handler($tag) {
	if (!is_array($tag)) return '';

	$name = $tag['name'];
	if (empty($name)) return '';
    
	if ($_SERVER['HTTP_X_FORWARD_FOR']) {
		$ip = $_SERVER['HTTP_X_FORWARD_FOR'];
	} else {
		$ip = $_SERVER['REMOTE_ADDR'];
	}
	$html = '<input type="hidden" name="' . $name . '" value="' . $ip . '" />';
	return $html;
}

/*
* Usage: in contact form 7 form area add 
* [sender_ip unique_name] 
* and in to email content add 
* user ip: [unique_name] 
*/


//numeric only with 7 digits validation

//contact form 7 extras
//numeric only validation
wpcf7_add_shortcode('phone_validate', 'wpcf7_phone_validate_shortcode_handler', true);

function wpcf7_phone_validate_shortcode_handler($tag) {
	if (!is_array($tag)) return '';

	$name = $tag['name'];
	if (empty($name)) return '';
	
	
	$html = '<script type="text/javascript">
	jQuery(document).ready(function() {
		//numeric only
		jQuery(".cf7_phone").keydown(function (event) {
			if ((!event.shiftKey && !event.ctrlKey && !event.altKey) && ((event.keyCode >= 48 && event.keyCode <= 57) || (event.keyCode >= 96 && event.keyCode <= 105))) // 0-9 or numpad 0-9, disallow shift, ctrl, and alt
			{
				// check textbox value now and tab over if necessary
			}
			else if (event.keyCode != 8 && event.keyCode != 46 && event.keyCode != 37 && event.keyCode != 39) // not esc, del, left or right
			{
				event.preventDefault();
			}	
			// else the key should be handled normally
		});
		
		//validate before submit
		jQuery(".wpcf7-submit").click(function(event){
			var submit_ok = true;
			jQuery(".phone").each(function() {
				if (jQuery(this).val().length != 7){
					alert("Phone Number must be 7 digits");
					var submit_ok = false;
				}
			});
			if (!submit_ok){
				event.preventDefault();
				return false;
			}
		});
	});
	</script>';
	return $html;
}


/*
* Usage: in contact form 7 form area add 
* [text class=phone] 
* [phone_validate]
*/

where do i put this custom-cf7-tags.php ?