Monday, July 21, 2008

PHP and Web Design

1.Open Notepad and type the following as shown below

Save it as header.html




2.Create new file in your notepad and type the following

Save it as main.html





3. Create one more new file and type the following

Save it as footer.html




4. Next we link them together. Open another new file in your notepad

and type the following. This is how the linking in PHP done.

Save it as index.html. All pages should be in the same folder.

Otherwise the linking won't work. Now access the index.html through

your webserver. You should be able to see the following page.

Now change the contents of each page with respective content, I have

tried to make it as simple as possible and not to put so much codes inside

the html, so that you won't get confused. Because once you know how it

is done, you can replace the contents yourself with complicated codes

such as tables, javascript, CSS etc. So if you have 100 pages and you have

to change your Top Menu link, you don't have to go to every page and

change it manually, just change it in header.html and it is done! Good Luck!





Date and Time in PHP

1.Type exactly like below in Notepad or any other HTML Editor and save it as date.

html in your localhost.





2. Let's go through the code, anything between is considered as a php code by

the browser. First we are assigning today's date to a variable called $today,

then on the next line we are displaying it to the browser. echo is php code to

display any data on the browser.

As you have noticed already, ("d M Y h:i A") is a date format that we have

constructed. d is for displaying day, M is for month, and Y is for year, h is for

hour and i is for minute, and finally A is for displaying AM or PM.

This is just a one way of displaying the date and time, there are many other

forms that you can create yourself. Also there are several different forms of

displaying one data, for example you can display the current month as

"February" of "Feb" or "02", it is all up to you how you want to display it.

Below is the additional php codes for displaying date and time

a
Lowercase Ante meridiem and Post meridiem
am or pm

A
Uppercase Ante meridiem and Post meridiem
AM or PM

B
Swatch Internet time
000 through 999

d
Day of the month, 2 digits with leading zeros
01 to 31

D
A textual representation of a day, three letters
Mon through Sun

F
A full textual representation of a month, such as January or March
January through December

g
12-hour format of an hour without leading zeros
1 through 12

G
24-hour format of an hour without leading zeros
0 through 23

h
12-hour format of an hour with leading zeros
01 through 12

H
24-hour format of an hour with leading zeros
00 through 23

i
Minutes with leading zeros
00 to 59

I (capital i)
Whether or not the date is in daylights savings time
1 if Daylight Savings Time, 0 otherwise.

j
Day of the month without leading zeros
1 to 31

l (lowercase 'L')
A full textual representation of the day of the week
Sunday through Saturday

L
Whether it's a leap year
1 if it is a leap year, 0 otherwise.

m
Numeric representation of a month, with leading zeros
01 through 12

M
A short textual representation of a month, three letters
Jan through Dec

n
Numeric representation of a month, without leading zeros
1 through 12

O
Difference to Greenwich time (GMT) in hours
Example: +0200

r
RFC 822 formatted date
Example: Thu, 21 Dec 2000 16:01:07 +0200

s
Seconds, with leading zeros
00 through 59

S
English ordinal suffix for the day of the month, 2 characters
st , nd , rd or th . Works well with j

t
Number of days in the given month
28 through 31

T
Timezone setting of this machine
Examples: EST , MDT ...

U
Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)
See also time()

w
Numeric representation of the day of the week
0 (for Sunday) through 6 (for Saturday)

W
ISO-8601 week number of year, weeks starting on Monday (added in PHP 4.1.0)
Example: 42 (the 42nd week in the year)

Y
A full numeric representation of a year, 4 digits
Examples: 1999 or 2003

y
A two digit representation of a year
Examples: 99 or 03

z
The day of the year (starting from 0)
0 through 365

Z
Timezone offset in seconds. The offset for timezones west of UTC is always negative, and for those east of UTC is always positive.
-43200 through 43200