PHP-assignment

A chatting app made using PHP. two tables are required for the database.

create table gagan_users(fname varchar(100) not null,lname varchar(100) not null,email varchar(100) not null,password varchar(100) not null,username varchar(100) not null,phone varchar(100) not null,gender varchar(10) not null,profile_photo varchar(50) default './asset/default_profile_photo.jpeg');

+---------------+--------------+------+-----+------------------------------------+-------+
| Field         | Type         | Null | Key | Default                            | Extra |
+---------------+--------------+------+-----+------------------------------------+-------+
| fname         | varchar(100) | NO   |     | NULL                               |       |
| lname         | varchar(100) | NO   |     | NULL                               |       |
| email         | varchar(100) | NO   |     | NULL                               |       |
| password      | varchar(100) | NO   |     | NULL                               |       |
| username      | varchar(100) | NO   | PRI | NULL                               |       |
| phone         | varchar(100) | NO   |     | NULL                               |       |
| gender        | varchar(10)  | NO   |     | NULL                               |       |
| profile_photo | varchar(50)  | YES  |     | ./asset/default_profile_photo.jpeg |       |
+---------------+--------------+------+-----+------------------------------------+-------+

create table gagan_msg( gfrom varchar(100) not null, gto varchar(100) not null, msg varchar(1000) not null, occur datetime not null);

+-------+----------------+------+-----+---------+-------+
| Field | Type           | Null | Key | Default | Extra |
+-------+----------------+------+-----+---------+-------+
| gfrom | varchar(100)   | NO   |     | NULL    |       |
| gto   | varchar(100)   | NO   |     | NULL    |       |
| msg   | varchar(10000) | NO   |     | NULL    |       |
| occur | datetime       | NO   |     | NULL    |       |
+-------+----------------+------+-----+---------+-------+