Timestamp to get current time/date - php

Question

I need simple code using PHP to get the current date/time using TIMESTAMP and insert this into a database.
I have a field called "ArrivalTime" within a database as TIMESTAMP.
EDIT:
<?php
$con = mysql_connect("localhost","root","") or die('Could not connect: ' . mysql_error());
mysql_select_db("a&e", $con) or die('Could not select database.');
// validate
$time = time(); $date = date('Y-m-d H:i:s',$time);
$sql="INSERT INTO Patient(Forename, Surname, Gender, Date_Of_Birth, Address, Patient_History, Illness, Priority, Arrival_Time)
VALUES('$patient_name', '$patient_lastname', '$gender', '$date', '$address', '$history', '$illness', '$priority', '$time')";
mysql_query($sql,$con) or die('Error: ' . mysql_error());
echo "1 record added";
// close connection
mysql_close($con);
?>
Many thanks

Answer 1

main.php
<?php
require('connect.php');
$time = time();
$sql = "INSERT INTO yourtablename (ArrivalTime) Values ('$time')";
mysql_query($sql);
?>
P.S: in the sql statement i'm sure you'll need to put other things in the other fields ,so you just replace the one above by this:
$sql = "INSERT INTO yourtablename (field1, field2, ArrivalTime) Values ('$value1','$value2','$time')";
connect.php
<?php
$error = "Couldn't connect";
$connect = mysql_connect("localhost","username","password") or die($error);
mysql_select_db("yourdatabase") or die($error);
?>

Answer 2

The query will be:
INSERT INTO mytable(ArrivalTime) VALUES(UNIX_TIMESTAMP())

Answer 3

mysql has a function UNIX_TIMESTAMP() for getting a Unix timestamp as an unsigned integer.
Example:
mysql> SELECT UNIX_TIMESTAMP();
-> 1196440210
So you can use this sql query:
insert into tableName(ArrivalTime) values(UNIX_TIMESTAMP())