Loop and display unique random array rows

loop-random-array.php

<?php

$special_var = '';
foreach($rows as $row){
	$page_links = $row[ 'callout_block_pages' ];		
	if( is_array( $page_links ) && in_array( $page_url, $page_links ) ) {
		$special_var = '<article class="'. $row[ 'callout_background_color' ] .'"><a href="'. $row[ 'callout_link' ] .'" rel="bookmark">'. $row[ 'callout_title' ]. '</a></article>';
	}
}
if(!empty($special_var)) {
	echo $special_var;
} else {
	if(count($rows) > 1 ){
		$picked = array();
		// loop while we pick unique randoms
		while ( count($picked) < 3 {
		    $random = array_rand($rows);

		    // check if random row is in $picked
		    if( !in_array($random, $picked )) {
		    	$picked[] = $random;
			    echo '<article class="'. $rows[$random]['callout_background_color'] .'">';
					// our url
					echo '<a href="'. $rows[$random]['callout_link'] .'" rel="bookmark">';
					// our title
					echo $rows[$random]['callout_title'];
					echo '</a>';
				echo '</article>';
			}
		}
	} else {
		echo '<article class="'. $rows[0]['callout_background_color'] .'">';
			// our url
			echo '<a href="'. $rows[0]['callout_link'] .'" rel="bookmark">';
			// our title
			echo $rows[0]['callout_title'];
			echo '</a>';
		echo '</article>';
	}
}