How to word count in php

<?php

$str = 'Hemant Vishwakarma';

echo  strlen($str);

?>

How to set up email verification using PHP CodeIgniter

Database Structure: 

	CREATE TABLE `users` (
	`userid` int(11) NOT NULL AUTO_INCREMENT,
	`first_name` varchar(20) NOT NULL,
	`last_name` varchar(20) NOT NULL,
	`password` varchar(20) NOT NULL,
	`email` varchar(50) NOT NULL,
	`is_verified` int(1) NOT NULL DEFAULT '0',
	`hash` varchar(32) NOT NULL,
	PRIMARY KEY (`userid`)
	)

Controller: 

	<?php
	function insert_user() {
	$this->data = array( //$data is a global variable
	'first_name' => $_POST['fname'],
	'last_name' => $_POST['lname'],
	'email' => $_POST['email'],
	'password' => md5($_POST['password']),
	'hash' => md5(rand(0, 1000))
	);
	$this->user_registration_model->insert_record($this->data);
	}
	?>

<?php
	function send_confirmation() {
	$this->load->library('email'); //load email library
	$this->email->from('admin@mysite.com', 'My Site'); //sender's email
	$address = $_POST['email']; //receiver's email
	$subject="Welcome to MySite!"; //subject
	$message= /*-----------email body starts-----------*/
	'Thanks for signing up, '.$_POST['fname'].'!
	Your account has been created.
	Here are your login details.
	-------------------------------------------------
	Email : ' . $_POST['email'] . '
	Password: ' . $_POST['password'] . '
	-------------------------------------------------
	Please click this link to activate your account:
	' . base_url() . 'index.php/user_registration/verify?' .
	'email=' . $_POST['email'] . '&hash=' . $this->data['hash'] ;
	/*-----------email body ends-----------*/
	$this->email->to($address);
	$this->email->subject($subject);
	$this->email->message($message);
	$this->email->send();
	}
	?>

<?php
	function verify() {
	$result = $this->user_registration_model->get_hash_value($_GET['email']);
	if($result){
	if($result['hash']==$_GET['hash']){
	$this->user_registration_model->verify_user($_GET['email']);
	}
	}
	}
	?>

Model: 

	<?php
	function verify_user($email) {
	$data = array('is_verified' => 1);
	$this->db->where('email', $email);
	$this->db->update('users', $data);
	}
	?>

How To Use JavaScript To Copy Text From One Field To Another

<html>
<head>
<title></title>

<script type="text/javascript">
function data_copy()
{

if(document.form1.copy[0].checked){
document.form1.add12.value=document.form1.add1.value;
document.form1.add22.value=document.form1.add2.value;
document.form1.city2.value=document.form1.city.value;
document.form1.state2.value=document.form1.state.value;
}else{
document.form1.add12.value="";
document.form1.add22.value="";
document.form1.city2.value="";
document.form1.state2.value="";

}

}

</script>
</head>


<body bgcolor="#ffffff" >
<table width='500' border='0' cellspacing='1' cellpadding='0'>
<form name=form1 method=post action='http://www.plus2net.com'>
<tr><td colspan=2><b>Ofice Address</b></td></tr>
<tr><td >Address 1</td><td><input type=text name=add1></td></tr>
<tr><td >Address 2</td><td><input type=text name=add2></td></tr>

<tr><td >City</td><td><input type=text name=city></td></tr>
<tr><td >State</td><td><input type=text name=state></td></tr>


<tr><td >
<b>Residence Address</b></td><td><input type=radio name=copy value='yes' onclick="data_copy()";>Same as above
<input type=radio name=copy value='no' onclick="data_copy()";>Not Same
</td></tr>
<tr><td >Address 1</td><td><input type=text name=add12></td></tr>

<tr><td >Address 2</td><td><input type=text name=add22></td></tr>
<tr><td >City</td><td><input type=text name=city2></td></tr>
<tr><td >State</td><td><input type=text name=state2></td></tr>


<tr><td colspan=2 align=center><input type=submit value=Submit> </form></td></tr>
</table>
</body>
</html>