Place this code in /wp-admin/php.ini:

memory_limit = 256M
upload_max_filesize = "64M"
post_max_size = "64M"
max_execution_time = "500"
max_input_time = "500"

if(is_in_cats(5)){

echo "Post is in category 5";

} else {

echo "Post is not in category 5";

}

custom_excerpt(20);

1. Download all files from your old server via FTP. Don’t forget /wp-content/uploads/ and /wp-content/plugins/ – you may have uploaded files or updated plugins.
2. Upload the files to the new server via FTP
3. Export the MySQL database from the old server as a file
4. Import export file into a new MySQL database on the new server
5. Amend /wp-config.php with the new database login details

With this done, your new website will probably show a 404 error page, and your image URLs and hyperlinks will still reference the old server address. What to do? You need to run these 4 SQL commands on your new database, replacing www.olddomain.com and www.newdomain.com in each instance:

UPDATE wp_options SET option_value = replace(option_value, 'http://www.olddomain.com','http://www.newdomain.com');

UPDATE wp_posts SET guid = replace(guid, 'http://www.olddomain.com','http://www.newdomain.com');

UPDATE wp_posts SET post_content = replace(post_content, 'http://www.olddomain.com','http://www.newdomain.com');

UPDATE wp_postmeta SET meta_value = replace(meta_value, 'http://www.olddomain.com','http://www.newdomain.com');

function the_excluded_category($excludedcats = array()){
	$count = 0;
	$categories = get_the_category();
	foreach($categories as $category) {
		$count++;
		if ( !in_array($category->cat_ID, $excludedcats) ) {
			echo '<a href="' . get_category_link( $category->term_id ) . '" title="' . sprintf( __( "Cortos de %s" ), $category->name ) . '" ' . '>' . $category->name.'</a>';

			if( $count != count($categories)-1 ){
				echo ", ";
			}

		}
	}
}

Usage:
Call it in your template file like this:

<?php the_excluded_category(array(1,328,338,339)); ?>

function create_id_list($pages, $explode = false){
 $pagelist = array();
 foreach ($pages as $pagg){
 $pagelist[] = $pagg->ID;
 }
 if($explode == true){
 return implode(",", $pagelist);
 } else {
 return $pagelist;
 }
}

Usage:

$mypages = get_pages('child_of='.$post->ID.'&sort_column=post_date&sort_order=desc');

$idlist = create_id_list($mypages); // Returns an array
$idlistcsv = create_id_list($mypages, true); // Returns a comma-separated list

// Returns an array of the current post's categories
function get_category_array(){
 global $post;
 $cat_array = array();

 foreach((get_the_category()) as $category) {
 $cat_array .= $category->cat_ID;
 }
 return $cat_array;
}

// Redirect to first child page. Place this in the loop.
function redirect_to_first_child(){
 $pagekids = get_pages("child_of=".$post->ID."&sort_column=menu_order");
 if ($pagekids) {
 $firstchild = $pagekids[0];
 wp_redirect(get_permalink($firstchild->ID));
 }
}

function has_children(){
 global $post;

 if( ($post->post_parent == 0 && wp_list_pages('title_li=&child_of='.$post->ID.'&echo=0'))
 ||
 ($post->post_parent > 0 && wp_list_pages('title_li=&child_of='.$post->post_parent.'&echo=0'))
 ){
 return true;
 } else {
 return false;
 }
}

function new_excerpt_more($more){
global $post;
return " [...]<br/> <a href='".get_permalink() ."#post-".$post->ID."' class='read-more'>Read More ></a>";
}
add_filter('excerpt_more', 'new_excerpt_more');

You can change the return code to change the text added to the link, or change this for an image for instance.