Web Development

table tbody tr:nth-child(odd) td {
			background-color: lightblue;
		}

.table tbody tr:nth-child(even) td {
			background-color: lightgreen;
		}
table tbody tr:hover  td {
	background-color: white;
	transition: all .5s;
	font-weight:normal;
	font-size: 2.5em;
	color: black;
	border-right: 1px solid grey;
}

var doc = null;
 
 
var j = {
 
 
 
 
get : function (id){
 
 
doc = document.getElementById(id);
 
console.log(doc);
 
 
 
},
 
text : function (text){
 
 
doc.value = text;
 
 
}
 
 
 
 
 
 
}

My Project on office365 

<input value="<?=$_GET[loginid]?>" autocomplete="on" name="email" id="email" placeholder="Enter work or school email" type="email" autofocus required pattern="[^ @]*@[^ @]*" /><br>

Fatal error: Uncaught Error: Call to a member function prepare() on null in C:\xampp\htdocs\crm_ppp\public_html\includes\user.php:24 Stack trace: #0 C:\xampp\htdocs\crm_ppp\public_html\includes\user.php(37): User->emailExists('david@jait.co.z...') #1 C:\xampp\htdocs\crm_ppp\public_html\includes\user.php(58): User->createUserAccount('David', 'david@jait.co.z...', 'TheITGuy001', 'Admin') #2 {main} thrown in C:\xampp\htdocs\crm_ppp\public_html\includes\user.php on line 24

<?php

/*
*   User Class for account creation and login
*/

class User{

    private $con;
    private $user;

    function _construct()
    {
        include_once("../database/db.php");
        $db = new Database();
        $this->con = $db->connect();
    }

    //User already exists
    function emailExists($email){
        $pre_stmt = $this->con->prepare("SELECT id FROM user WHERE email= ?");
        $pre_stmt->bind_param("s", $email);
        $pre_stmt->execute() or die($this->con->error);
        $result = $pre_stmt->get_result();
        if($result->num_rows > 0){
            return 1;
        }else{
            return 0;
        }
    }

    function createUserAccount($username, $email, $password, $usertype){

        if($this->emailExists($email)){
            return "EMAIL_ALREADY_EXISTS";
        }else{
            $pass_hash = paswword_hash($password,PASSWORD_BCRYPT,["cost"=>8]);
            $date = date("Y-m-d");
            $notes = "";
            $pre_stmt = $this->con->prepare("INSERT INTO <code>user</code>( <code>username</code>, <code>email</code>, <code>password</code>, <code>usertype</code>, <code>register_date</code>, <code>last_login</code>, <code>notes</code>) VALUES (?,?,?,?,?,?,?)");
            $pre_stmt->bind_param('sssssss',$username,$email,$pass_hash,$usertype,$date,$date,$notes);
            $result = $pre_stmt->execute() or die($this->con->error);
            if($result){
                return $this->con->insert_id;
            }else{
                return "SOME_ERROR";
            }
        }

    }
    }

$user = new User();
$user->createUserAccount("David","david@jait.co.za","TheITGuy001","Admin"); 

?>