3v4l.org

run code in 300+ PHP versions simultaneously
<?php $globalFunction = function($var){ echo "works $var"; }; class TestClass{ private $globalFunction; function __construct(){ $this->globalFunction = $GLOBALS['globalFunction']; } function testFunc(){ ($this->globalFunction)('a'); } } $arr = new TestClass(); $arr->testFunc();
Output for 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
works a
preferences:
174.23 ms | 407 KiB | 5 Q