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Pulling random but unique value from array in php

Posted on 2011-03-01
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Last Modified: 2013-11-30
I am trying to intersperse my posts in a WordPress loop with non-post content. The non-post content has to be pulled in at random. The idea is that posts are represented as little square thumbnails and I want non-post color boxed interspersed with the post thumbnails. I don't think it really matters that this is a WordPress loop. It could be any loop. I set up my loop to count my records so that each record has a class of "box1, box2, box3, etc." I want to create another class that is basically the same as the count class but with the order random and unique (blank3, blank32, blank14, etc.). I know that there will be a total of 33 items in the loop. I  created an array called $blanks and shuffled them but I am having trouble finding a way to pull that into my class field in the loop.

This is the page: http://www.clampdesign.com/dev/itopartners/category/work

I want to add to the $classes variable but everything I've tried would result in duplicate random numbers between 1 and 33.
Here is what I have so far:


<?php
$count = 0;
while ($wp_query->have_posts()) : $wp_query->the_post(); 
$blanks = range(0,33);
shuffle($blanks);
	foreach ($blanks as $blank) {
		$teal[$blank] = 'teal'.$blank;
	}
		$count++;
		$classes = 'class="box'.$count.' '.$teal[$blank];
		if ($count % 11 == 0) $classes .= ' last';
		$classes .= '"';
		if ( has_post_thumbnail()) { ?>
		   <a <?php echo $classes; ?> href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>" >
		   <?php the_post_thumbnail('thumbnail'); ?>
		   </a>
	 <?php } ?>
 <?php endwhile;  
?>

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Question by:lyeffeth
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4 Comments
 
LVL 110

Expert Comment

by:Ray Paseur
ID: 35011331
Hmm...  What seems to be going wrong?  range() will produce no duplicates.  shuffle() will order randomly.
<?php // RAY_temp_lyeffeth.php
error_reporting(E_ALL);
echo "<pre>";

$blanks = range(0,33);
shuffle($blanks);

// SHOW THE RANDOM ARRAY
print_r($blanks);

// CREATE A NEW ARRAY OF STUFF
$teal = array();
foreach ($blanks as $key =>$blank)
{
    $teal[$blank] = 'teal'.$blank;
    unset($blanks[$key]);
}
print_r($teal);
print_r($blanks);

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Accepted Solution

by:
lyeffeth earned 0 total points
ID: 35011446
Nevermind, I figured it out. Final code:
<?php
					$blankbox = range(1,15);
					if ( get_query_var('paged') ) {
								$paged = get_query_var('paged');
						} elseif ( get_query_var('page') ) {
								$paged = get_query_var('page');
						} else {
								$paged = 1;
						}
					global $post;
					$args = array( 'showposts' => 18, 'offset'=> 1, 'orderby' => rand, 'paged'=>$paged, 'cat'=>169 );
					$myposts = get_posts( $args );
					$workposts = array_merge($blankbox, $myposts);
					shuffle($workposts);
					$count = 0;
					foreach( $workposts as $post ) :	setup_postdata($post); 
							$count++;
							$classes = 'box'.$count;
							if ($count % 11 == 0) $classes .= ' last';
							if ( has_post_thumbnail()) { ?>
							   <div class="<?php echo $classes; ?>"><a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>" >
							   <?php the_post_thumbnail('thumbnail'); ?>
							   </a></div>
						 <?php } else { ?>
						 		<div class="blankbox <?php echo $classes; ?>"></div>
						 <?php } ?>
					 <?php endforeach; ?>
			</div><!--#thumbnails-->

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LVL 16

Expert Comment

by:CWS (haripriya)
ID: 39686721
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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