← All changes | includes/Traits/Singleton.php +36 -15 2.2.3 → 2.2.14 View file →

		@@ -1,15 +1,36 @@
1		-<?php
2		-
3		-namespace TableBuilder\Traits;
4		-trait Singleton {
5		- private static $instances = array();
6		-
7		- public static function instance() {
8		- $class = get_called_class();
9		- if ( ! isset( self::$instances[$class] ) ) {
10		- self::$instances[$class] = new $class();
11		- }
12		- return self::$instances[$class];
13		- }
14		-}
15		-
	1	+<?php
	2	+/**
	3	+ * Generic singleton trait for per-class shared instances
	4	+ *
	5	+ * @package TableKit
	6	+ */
	7	+
	8	+namespace TableBuilder\Traits;
	9	+
	10	+/**
	11	+ * Generic singleton trait: gives any class a shared instance() accessor
	12	+ * keyed by class name, so subclasses don't each need to reimplement it.
	13	+ *
	14	+ * @package TableBuilder\Traits
	15	+ */
	16	+trait Singleton {
	17	+ /**
	18	+ * Shared instances, keyed by class name.
	19	+ *
	20	+ * @var array
	21	+ */
	22	+ private static $instances = array();
	23	+
	24	+ /**
	25	+ * Gets (and lazily creates) the shared instance of the using class.
	26	+ *
	27	+ * @return static The shared instance.
	28	+ */
	29	+ public static function instance() {
	30	+ $class = get_called_class();
	31	+ if ( ! isset( self::$instances[ $class ] ) ) {
	32	+ self::$instances[ $class ] = new $class();
	33	+ }
	34	+ return self::$instances[ $class ];
	35	+ }
	36	+}