Index: src/wp-includes/post-template.php
===================================================================
--- src/wp-includes/post-template.php	(revision 42341)
+++ src/wp-includes/post-template.php	(working copy)
@@ -281,8 +281,14 @@
 	if ( post_password_required( $post ) )
 		return get_the_password_form( $post );
 
-	if ( $page > count( $pages ) ) // if the requested page doesn't exist
-		$page = count( $pages ); // give them the highest numbered page that DOES exist
+	if(is_array($pages) ) {
+		$pages_count = count( $pages );
+	} else {
+		$pages_count = 0;
+	}
+	
+	if ( $page > $pages_count ) // if the requested page doesn't exist
+		$page = $pages_count; // give them the highest numbered page that DOES exist
 
 	$content = $pages[$page - 1];
 	if ( preg_match( '/<!--more(.*?)?-->/', $content, $matches ) ) {
@@ -304,8 +310,14 @@
 		$teaser = '';
 
 	$output .= $teaser;
+	
+	if(is_array($content)) {
+		$content_count = count($content);
+	} else {
+		$content_count = 0;
+	}
 
-	if ( count( $content ) > 1 ) {
+	if ( $content_count > 1 ) {
 		if ( $more ) {
 			$output .= '<span id="more-' . $post->ID . '"></span>' . $content[1];
 		} else {
@@ -997,10 +1009,16 @@
  */
 function post_custom( $key = '' ) {
 	$custom = get_post_custom();
-
+	
+	if(is_array($custom[$key])) {
+		$custom_count = count($custom[$key]);
+	} else {
+		$custom_count = 0;
+	}
+	
 	if ( !isset( $custom[$key] ) )
 		return false;
-	elseif ( 1 == count($custom[$key]) )
+	elseif ( 1 == $custom_count )
 		return $custom[$key][0];
 	else
 		return $custom[$key];