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<?php function getRef(&$var) { } function &returnRef1() { $a = 5; return $a; } class A{ static function &returnRef2() { $a = 5; return $a; } function &returnRef3() { $a = 5; return $a; } } getRef(returnRef1()); getRef(A::returnRef2()); getRef((new A())->returnRef3()); echo "Done\n";
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.3.7
Done
preferences:
253.07 ms | 403 KiB | 289 Q