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<?php class Foo { public function __construct() { var_dump('created!'); } } class Bar { public function getFoo() { static $foo; return $foo ?? ($foo = new Foo); } } $bar = new Bar; var_dump($bar->getFoo(), $bar->getFoo(), $bar->getFoo());
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(8) "created!" object(Foo)#2 (0) { } object(Foo)#2 (0) { } object(Foo)#2 (0) { }
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/quomT on line 17
Process exited with code 255.
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