exception 'PDOException' with message 'SQLSTATE[HY093]: Invalid parameter number - php

Question

This look a lot simple but for some reasons i can not get it to work... I need all the help i can get
function register_user($email, $password, $gender, $phone_number){
$this->sql = "insert into user
(
email_addr, phone_number, password,
gender, activation_code, isMobileVerified,
last_login_date, unix_sign_up_time, sign_up_date
) VALUES
(
:email, :phone_number, :password,
:gender, :activation_code, :isMoobileVerified,
:last_login, :time_unix, NOW()
)";
$this->prepare($this->sql);
$this->bind(':email', $email);
$this->bind(':phone_number', $phone_number);
$this->bind(':password', $password);
$this->bind(':gender', $gender);
$this->bind(':activation_code', sha1($password));
$this->bind(':isMobileVerified', 0);
$this->bind(':last_login', time());
$this->bind(':time_unix', time());
$this->execute();
return $this->lastInsertedId();
}
when i run this function like this
try{
echo "<br>" . $i->register_user('myMail#register.com', 'password', 'male', '2348020000007');
}catch (PDOException $e) {
//todo: logging function or mail to dev goes here
echo $e ."<br>". $e->getMessage();
}
i get this error
exception 'PDOException' with message 'SQLSTATE[HY093]: Invalid parameter number: parameter was not defined' in C:\wamp\www\ecommerce\system\model\class.ecommerce.php:215 Stack trace: #0 C:\wamp\www\ecommerce\system\model\class.ecommerce.php(215): PDOStatement->bindValue(':isMobileVerifi...', true, 5) #1 C:\wamp\www\ecommerce\system\model\class.ecommerce.php(281): ukorJidechi\db_handler->bind(':isMobileVerifi...', true) #2 C:\wamp\www\ecommerce\namespace_test.php(51): ukorJidechi\ecommerce_user->register_user('myMail#register...', 'password', 'male', '2348020000007') #3 {main}
SQLSTATE[HY093]: Invalid parameter number: parameter was not defined
here is my custom bind method
function bind($placeholder, $value, $type = null){
if (is_null($type)) {
switch (true) {
case is_int($value):
$type = \PDO::PARAM_INT;
break;
case is_bool($value):
$type = \PDO::PARAM_BOOL;
break;
case is_null($value):
$type = \PDO::PARAM_NULL;
break;
default:
$type = \PDO::PARAM_STR;
}
}
$this->stmt->bindValue($placeholder, $value, $type);
}
Can someone show me what I am doing wrong? Please.

Answer 1

See this statement here,
$this->bind(':unix_sign_up_time', time());
And compare the above statement with $this->sql
$this->sql = "insert into user
(
...
:last_login, :time_unix, NOW()
^^^^^^^^^
)";
So your bind() statement should be,
$this->bind(':time_unix', time());
Edited:
See this line here in $this->sql,
$this->sql = "insert into user
(
...
:gender, :activation_code, :isMoobileVerified,
^^^^^^^^^^^^^^^^^^
...
)";
It should be :isMobileVerified