overboards: remove obsolete code

templates/themes/overboards/theme.php

@@ -29,7 +29,7 @@
 				// Copy the generated board HTML to its place
 				file_write($overboard['uri'] . '/index.html', $overboards->build($overboard));
 				file_write($overboard['uri'] . '/overboard.js',
-					Element('themes/overboards/overboard.js', array()));
+					Element('themes/overboards/overboard.js', []));
 			}
 		}
 	}
@@ -157,7 +157,7 @@
 			global $config;
 
 			$html     = '';
-			$overflow = array();
+			$overflow = [];
 
 			// Fetch threads from all boards and chomp the first 'n' posts, depending
 			// on the setting
@@ -166,7 +166,7 @@
 			// Top threads displayed on load
 			$top_threads = array_splice($threads, 0, $overboard['thread_limit']);
 			// Number of processed threads by board
-			$counts      = array();
+			$counts      = [];
 
 			// Output threads up to the specified limit
 			foreach ($top_threads as $post) {
@@ -201,35 +201,18 @@
 			$html .= '<script>var ukko_overflow = ' . json_encode($overflow) . '</script>';
 			$html .= '<script type="text/javascript" src="/'.$overboard['uri'].'/overboard.js?=' . $config['resource_version'] . '"></script>';
 
-			return Element('index.html', array(
+			return Element('index.html', [
 				'config'       => $config,
-				'board'        => array(
+				'board'        => [
 					'dir' => $overboard['uri'] . "/",
 					'url'      => $overboard['uri'],
 					'title'    => $overboard['title'],
-					'subtitle' => str_replace('%s', $overboard['thread_limit'],
-						strval(min($overboard['subtitle'], $total_count))),
-				),
-				'no_post_form' => true,
+					'subtitle' => str_replace('%s', $overboard['thread_limit'], strval(min($overboard['subtitle'], $total_count))),
+				],
+				'no_post_form' => !$config['overboard_post_form'],
 				'body'         => $html,
 				'mod'          => $mod,
 				'boardlist'    => createBoardlist($mod),
-			));
+			]);
 		}
-
 	};
-
-	if (!function_exists('array_column')) {
-		/**
-		 * Pick out values from subarrays by given key
-		 */
-		function array_column($array, $key) {
-			$result = [];
-			foreach ($array as $val) {
-				$result[] = $val[$key];
-			}
-			return $result;
-		}
-	}
-
-