3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A {} class B {function __construct(){}} class C {function C(){}} $a = null; new A($a = 123); var_dump($a); $b = null; new B($b = 456); var_dump($b); $c = null; new C($c = 789); var_dump($c); echo 'wat';
Output for 7.3.32 - 7.3.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
int(123) int(456) int(789) wat
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; C has a deprecated constructor in /in/c83h8 on line 5 int(123) int(456) int(789) wat
Output for 7.0.0 - 7.0.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; C has a deprecated constructor in /in/c83h8 on line 5 NULL int(456) int(789) wat
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
NULL int(456) int(789) wat
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
NULL NULL int(789) wat
preferences:
137.84 ms | 411 KiB | 5 Q