<?php
foreach((get_the_category()) as $category) {
    echo $category->cat_name . ' ';
}
?>

and you can replace the cat_name to be other category factors below

cat_ID

the category id (also stored as ‘term_id’)

cat_name

the category name (also stored as ‘name’)

category_nicename

a slug generated from the category name (also stored as ’slug’)

category_description

the category description (also stored as ‘description’)

category_parent

the category id of the current category’s parent. ‘0′ for no parents. (also stored as ‘parent’)

category_count

the number of uses of this category (also stored as ‘count’)

we can also use the code from wordpress directly,
 <?php the_category(', '); ?>
 <?php the_title(); ?>

Incoming search terms for the article:

• category of the current post

If so, it’s easies for me to understand what the date it post…

I try to login in different wordpress theme, and check the different style to show the time

and now, I think I fixed it.

here is some notice for me, and for you.

Two common WordPress tag functions you will see in most themes are the time and date format tags: <?php the_date(); ?> and <?php the_time() ?>. These tags are used to return time and date information relating to the publishing of a post. Both of these functions accept a parameter that formats the way the date or time is displayed. This parameter is called a format string and can be thought of as a simple template describing how and what will appear. We are going to look at some of the options you have when formatting these functions.

Each character in these format strings represents one part of the object we are formatting. Let’s look at a simple example. Here is the date tag

<?php the_time('m.d.Y'); ?>

You will notice that I used the the_time tag. This is because using the the_date tag within the WordPress loop will fail to return two instances of the same date on the same page. As a general rule use the_time when possible.

If you want to display the date in European format, follow this sequence. With a simple rearranging of the format string, we end up with this code:

<?php the_time('d.m.Y'); ?>

What if you want to display the time and date in a different format altogether? Here are some options:

Format characters for the ‘day’

D = abbreviated day of the week: e.g. Mon, Tue, Sun, etc.

d = date displayed as two digits, and single digit dates are led by a zero

j = date displayed as one digit

l (lowercase L) = full day of the week: e.g. Monday, Tuesday

N = number representing the day of the week: e.g. Mon.=>1

S = suffix for numeric day of the month: e.g. st, nd, ect.

z = number representing the day of the year: 0-365

Format characters for the ‘week’

W = number representing the number of the week: ‘32′ week of year

Format characters for the ‘month’

F = full month: e.g. May, June

m = two digit number representing month, single digit dates are led by a zero

M = abbreviated month: e.g. Dec, June, etc.

n = one digit month

Format characters for the ‘year’

Y = four digit year: 2009

y = two digit year: 09

Format characters for the ‘time’

g = one digit, 12-hour hour format

G = one digit, 24-hour hour format

h = two digit, 12-hour hour format

H = two digit, 24-hour hour format

a = lowercase am or pm

A = uppercase AM or PM

i = two digit, minutes

s = two digit, seconds

This list is not exhaustive, but it includes most of the format characters you might use in a WordPress theme. There are literally thousands of ways you could use these tags. Here are a couple of examples:

<?php the_time('l'); ?> the <?php the_time('dS'); ?> of <?php the_time('F'); ?>

Will result in: Tuesday the 21st of April

<?php the_time('F dS, Y'); ?>

Will result in: April 21st, 2009

The possibilities are endless, so experiment and have fun!

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