print | Learning Is Fun

Dec 19, 2008 -

WordPress: get page id and content with example & code

Hey Guys!

Often I see people coming to my site searching with the terms wordpress get page id, wordpress get page content or something similar. I think wordpress developers face situations when they need to get page or post information in customized way. It happened to me too and I would like to share it with others since often people are coming to search this information.

Well. It is very easy and we can solve it quickly.
OK. Now let me show you how to get these information.

Remember one thing that is important for wordpress data fetching of this kind. Your posts and pages information is saved in a single database table and that is wp_posts. The wp_ is the prefix of you database and may differ. But most of the times the database table name is wp_posts and other times it is YourCustomPrefix_posts. We are going to fetch data from this table.

WordPress – print page id:

There is a built-in wordpress function using which you can print the post or page id. When you call this, this directly prints this inforation in your page without the need to use the built-in PHP echo or print function. Remember to keep it in the while loop.

<?php if (have_posts()) : ?>

	<?php while (have_posts()) : the_post(); ?>
        
		<?php the_ID(); ?>
            
	<?php endwhile; ?>

<?php endif; ?>

<?php if (have_posts()) : ?>

<?php while (have_posts()) : the_post(); ?>

<?php the_ID(); ?>

<?php endwhile; ?>

<?php endif; ?>

WordPress – get page id:

There is a global variable post which contains the related information of the currest post or page. The name of the variable is: $post and it is actually an object. You can access information just as you access variables from an object. Remember to keep it in the while loop.

<?php if (have_posts()) : ?>

	<?php while (have_posts()) : the_post(); ?>
        
        <?php 
		global $post;
		echo $post->ID;
        ?>
            
	<?php endwhile; ?>

<?php endif; ?>

<?php if (have_posts()) : ?>

<?php while (have_posts()) : the_post(); ?>

<?php

global $post;

echo $post->ID;

<?php endwhile; ?>

<?php endif; ?>

You can print all the information in the $post object to see all the variables and their values that is contains.

<?php if (have_posts()) : ?>

	<?php while (have_posts()) : the_post(); ?>
        
        <?php 
		global $post;
		var_dump($post);
        ?>
            
	<?php endwhile; ?>

<?php endif; ?>

<?php if (have_posts()) : ?>

<?php while (have_posts()) : the_post(); ?>

<?php

global $post;

var_dump($post);

<?php endwhile; ?>

<?php endif; ?>

WordPress – get page content:

Now you know you can get the page or post content from $post->post_content variable. But if you echo or print them, they may look somewhat without formatting. So, you need to use PHP built-in nl2br() function to look the content as it is.

<?php if (have_posts()) : ?>

	<?php while (have_posts()) : the_post(); ?>
        
        <?php 
		global $post;
		echo nl2br($post->post_content);
        ?>
            
	<?php endwhile; ?>

<?php endif; ?>

<?php if (have_posts()) : ?>

<?php while (have_posts()) : the_post(); ?>

<?php

global $post;

echo nl2br($post->post_content);

<?php endwhile; ?>

<?php endif; ?>

WordPress – get any information of your page or post:

You know you can print all information to check all the available variables and their values through using PHP’s built-in var_dump() function. Suppose you need to get the post title, post type and posting time. We can get them easily in this way.

<?php if (have_posts()) : ?>

	<?php while (have_posts()) : the_post(); ?>
        
        <?php 
		global $post;
		echo $post->post_title;
		echo $post->post_type;
		echo $post->post_date;
        ?>
            
	<?php endwhile; ?>

<?php endif; ?>

<?php if (have_posts()) : ?>

<?php while (have_posts()) : the_post(); ?>

<?php

global $post;

echo $post->post_title;

echo $post->post_type;

echo $post->post_date;

<?php endwhile; ?>

<?php endif; ?>

Please notice that post_title, post_type and post_date are all several database fields from wp_posts table of our wordpress database.

Very easy. Right? And that is all for getting the page or post information.

Thank you for reading.

Mar 29, 2008 -

PHP

13 Comments

PHP script to print all the GET & POST variables

Variables are one of the core powers of programming. As PHP programmers, we oftern may find that a $_GET or $_POST variable is not performing properly or the way we expected. This may occur for several reasons such as we made a mistake in the variable name. Sometimes this kind of problem take so much time that lots of time is wasted to correct a single variable!

So, you can use the scripts I have written below and use in your code whenever you suspect that there may be a problem with the variables. These scripts helps you by showing the details of each and every $_GET and $_POST variables in the script.

This is very easy and actually 3 (three) lines of code required.

Below is the code to print all $_GET variables:

<?php
	print('<pre>');
	print_r($_GET);
	print('</pre>');
?>

<?php

print('<pre>');

print_r($_GET);

print('</pre>');

Click here to see the demo here.

To print all the $_POST variables, we need to change only one line:

<?php
	print('<pre>');
	print_r($_POST);
	print('</pre>');
?>

<?php

print('<pre>');

print_r($_POST);

print('</pre>');

OK.
You can do it in another way too. It is simple also.

<?php
	var_dump($_GET);
?>

<?php

var_dump($_GET);

Or,

<?php
	var_dump($_POST);
?>

<?php

var_dump($_POST);

So, print your $_GET and $_POST variables whenever you think required.