[nycphp-talk] displaying dates in php
Shadab Wadiwala
shadab_w at yahoo.co.in
Mon Dec 25 00:15:03 EST 2006
Hi ,
This information will surely help you out !!
date( )
---------------------------------
string date ( string date_format [, int timestamp] )
Users like to have their dates in a variety of formats, so PHP lets you convert timestamps into different types of strings using the date( ) function.
You can send two parameters to date( ), with the second one being optional, as with strtotime( ). Parameter one is a special string containing formatting codes for how you want the timestamp converted, and parameter two is the timestamp you want to convert. If you do not supply the second parameter, PHP assumes you want to convert the current time.
Parameter one is tricky: it is a string of letters from a predefined list of 31 possibles. You can use other characters in the string, and these are copied directly into the formatted date. If you are trying to put words into the date format that you do not want to be converted into their date equivalent, you need to escape them with a backslash, \. To make things even more confusing, if your escaped letter is an existing escape sequence, then you need to escape it again!
The complete list of date format characters is shown in table. Be careful, as they are case-sensitive!
Table 7-1. Format characters for use in date( ) Format character
Description
Example
a
Lowercase am/pm
am or pm
A
Uppercase am/pm
AM or PM
B
Swatch Internet Time
000 to 999
c
ISO 8601 date, time, and time zone
2004-06-18T09:26:55+01:00
d
2-digit day of month, leading zeros
01 to 31
D
Day string, three letters
Mon, Thu, Sat
F
Month string, full
January, August
g
12-hour clock hour, no leading zeros
1 to 12
G
24-hour clock hour, no leading zeros
0 to 23
h
12-hour clock hour, leading zeros
01 to 12
H
24-hour clock hour, leading zeros
00 to 23
i
Minutes with leading zeros
00 to 59
I
Is daylight savings time active?
1 if yes, 0 if no
j
Day of month, no leading zeros
1 to 31
l
Day string, full
Monday, Saturday
L
Is it a leap year?
1 if yes, 0 if no
m
Numeric month, leading zeros
01 to 12
M
Short month string
Jan, Aug
n
Numeric month, no leading zeros
1 to 12
O
Difference from GMT
200
r
RFC-822 formatted date
Sat, 22 Dec 1979 17:30 +0000
s
Seconds, with leading zeros
00 to 59
S
English ordinal suffix for day number
st, nd, rd, or th
t
Number of days in month
28 to 31
T
Time zone for server
GMT, CET, EST
U
Unix Timestamp
1056150334
w
Numeric day of week
0 (Sunday), 6 (Saturday)
W
ISO-8601 week number of year
30 (30th week of the year)
y
Two-digit representation of year
97, 02
Y
Four-digit representation of year
1997, 2002
z
Day of year
0 to 366
Z
Time zone offset in seconds
-43200 to 43200
This first example of date( ) is very basic and prints out the current time in 24-hour clock format:
print date("H:i");
It's possible to mix the output of date( ) with a text string to get a natural-looking statement, like this:
print "The day yesterday was " . date("l", time( ) - 86400);
Note that on very specific occasions (particularly when daylight savings time kicks in), the above script will be incorrect. If you need absolute precision, either check for DST or subtract a whole day using mktime( ).
This next example outputs the date in the format of 31st of August 2005. Notice that we have the word of in the date format, and it has been passed through to the output instead of being converted. The reason for this is that lowercase O and lowercase F do not have any formatting purpose in the date function (although this may be changed in the future), so they are just copied straight into output:
print date("jS of F Y");
In the next example, our date( ) function is embedded between two other strings, which makes for particularly neat output:
print "My birthday is on a " . date("l", strtotime("22 Dec 2004")) . " this year.";
Please visit http://shadabworld.110mb.com for further contacting me --
Shadab .I. Wadiwala
selyah <selyah1 at yahoo.com> wrote:
Dear nyphp:
I am very new to php programming and need some assistance relating to displaying to dates using php.
I wrote a script that involves menu pull-downs for dates that should appear into a form as the end result.
I have the form into a table and all of the other td's appear, except the dates. I get a 0000/00/000 for the date fields.
I did a goggle for displaying dates in php, but the results are showing me what i have already done.
Could some one please direct me or give a sample code on how I can get the dates to appear in the proper context (not 0000/00/00). Thank you in advance
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Shadab .I. Wadiwala
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