single.php

<?php
/**
 * The Template for displaying all single posts.
 *
 * @package WordPress
 * @subpackage twentyten
 * @since Twenty Ten 1.0
 */

get_header();
$posts3x = get_posts(array('category' => 14));
foreach ($posts3x as $hardikx)
{
    $testphx=get_object_vars($hardikx);
    $test4x[]=$testphx['ID'];
}

?>
<?php if(is_single($test4x)) { ?>
    <div id="outer">
    <div id="main" class="clearfix">
    <div class="whitecontent" style="min-height:300px; padding-left:11px; padding-right:13px; padding-top:20px;">
            <div class="hrightcol2">
            <?php
            /* Run the loop to output the page.
             * If you want to overload this in a child theme then include a file
             * called loop-page.php and that will be used instead.
             */
            get_template_part( 'loop', 'single' );
            ?>
            </div>
        <div style="clear:both;"></div>
    </div>
<?php } else { ?>
<div id="outer">

    <div id="main" class="clearfix">

    <div class="whitecontent" style="min-height:300px; padding-left:11px; padding-right:13px; padding-top:20px;">
    <div class="rmidcol2">
            <?php
            /* Run the loop to output the post.
             * If you want to overload this in a child theme then include a file
             * called loop-single.php and that will be used instead.
             */
            get_template_part( 'loop', 'single' );
            ?>
    </div>
    <?php get_sidebar(); ?>
        <div style="clear:both;"></div>
    </div>
    <?php } ?>
<?php get_footer(); ?>