replace create_function with performanter, because opcachable closure

api/src/Categories.php

@@ -811,7 +811,10 @@ class Categories
 					($cat['appname'] != self::GLOBAL_APPNAME);
 			}
 			// sort heighest weight to the top
-			usort($cats,create_function('$a,$b',"return \$b['weight'] - \$a['weight'];"));
+			usort($cats, function($a, $b)
+			{
+				return $b['weight'] - $a['weight'];
+			});
 		}
 		return $cache[$cat['cat_name']] = (int) $cats[0]['id'];
 	}

api/src/Db.php

@@ -2057,7 +2057,11 @@ class Db
 	{
 		$keys = array_keys($arr);
 
-		return array_walk($keys,create_function('&$v,$k,$strip','$v = str_replace($strip,\'\',$v);'),$strip) ?
+		return array_walk($keys, function(&$v, $k, $strip)
+		{
+			unset($k);	// not used, but required by function signature
+			$v = str_replace($strip, '', $v);
+		}, $strip) ?
 			array_combine($keys,$arr) : $arr;
 	}
 }

api/src/Db/Schema.php

@@ -1369,7 +1369,10 @@ class Schema
 		{
 			if($this->capabilities['name_case'] == 'upper')
 			{
-				array_walk($primary,create_function('&$s','$s = strtolower($s);'));
+				array_walk($primary, function(&$s)
+				{
+					$s = strtolower($s);
+				});
 			}
 			$definition['pk'] = $primary;
 		}
@@ -1402,7 +1405,10 @@ class Schema
 				}
 				if($this->capabilities['name_case'] == 'upper')
 				{
-					array_walk($index['columns'],create_function('&$s','$s = strtolower($s);'));
+					array_walk($index['columns'], function(&$s)
+					{
+						$s = strtolower($s);
+					});
 				}
 				if (count($definition['pk']) && (implode(':',$definition['pk']) == implode(':',$index['columns']) ||
 					$index['unique'] && count(array_intersect($definition['pk'],$index['columns'])) == count($definition['pk'])))

api/src/Etemplate/Widget/Link.php

@@ -90,7 +90,8 @@ class Link extends Etemplate\Widget
 		// ToDo: implement on client-side
 		if (!$attrs['help']) self::setElementAttribute($form_name, 'help', 'view this linked entry in its application');
 
-		if($attrs['type'] == 'link-list') {
+		if($attrs['type'] == 'link-list')
+		{
 			$app = $value['to_app'];
 			$id  = $value['to_id'];
 			$links = Api\Link::get_links($app,$id,'','link_lastmod DESC',true, $value['show_deleted']);
@@ -103,11 +104,18 @@ class Link extends Etemplate\Widget
 	/**
 	 * Find links that match the given parameters
 	 */
-	public static function ajax_link_search($app, $type, $pattern, $options=array()) {
+	public static function ajax_link_search($app, $type, $pattern, $options=array())
+	{
 		$options['type'] = $type ? $type : $options['type'];
 		if(!$options['num_rows']) $options['num_rows'] = 1000;
+
 		$links = Api\Link::query($app, $pattern, $options);
-		$linksc = array_combine(array_map(create_function('$k', 'return (string)" ".$k;'), array_keys($links)), $links);
+
+		$linksc = array_combine(array_map(function($k)
+		{
+			return (string)$k;
+		}, array_keys($links)), $links);
+
 		$response = Api\Json\Response::get();
 		$response->data($linksc);
 	}

api/src/Vfs.php

@@ -360,7 +360,10 @@ class Vfs extends Vfs\StreamWrapper
 		}
 		self::$fstab[$path] = $url;
 
-		uksort(self::$fstab,create_function('$a,$b','return strlen($a)-strlen($b);'));
+		uksort(self::$fstab, function($a, $b)
+		{
+			return strlen($a) - strlen($b);
+		});
 
 		if ($persitent_mount)
 		{

api/src/Vfs/StreamWrapper.php

@@ -1103,7 +1103,10 @@ class StreamWrapper implements StreamWrapperIface
 		self::$symlink_cache[$path] = $target;
 
 		// sort longest path first
-		uksort(self::$symlink_cache,create_function('$b,$a','return strlen($a)-strlen($b);'));
+		uksort(self::$symlink_cache, function($b, $a)
+		{
+			return strlen($a) - strlen($b);
+		});
 		if (self::LOG_LEVEL > 1) error_log(__METHOD__."($path,$target) cache now ".array2string(self::$symlink_cache));
 	}