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run code in 300+ PHP versions simultaneously
<?php class Car { protected $speed = 0; protected $people = 0; public function onboardPerson() { $this->people++; } public function accelerate() { $this->speed++; } } class Taxi extends Car { protected $fare; public function setFare($fare) { $this->fare = $fare; } } $taxi = new Taxi(); // Replace instances of type Car (T) with subtype Taxi (S) $taxi->onboardPerson(); $taxi->accelerate(); var_dump($taxi);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
object(Taxi)#1 (3) { ["speed":protected]=> int(1) ["people":protected]=> int(1) ["fare":protected]=> NULL }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 object(Taxi)#1 (3) { ["speed":protected]=> int(1) ["people":protected]=> int(1) ["fare":protected]=> NULL }
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
object(Taxi)#1 (3) { ["fare":protected]=> NULL ["speed":protected]=> int(1) ["people":protected]=> int(1) }
preferences:
211.43 ms | 403 KiB | 232 Q