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run code in 300+ PHP versions simultaneously
<?php class Lock { function unlock() { $this->isLocked = false; echo 'You unlocked the Lock'."\n"; } function lock() { $this->isLocked = true; echo 'You locked the Lock'."\n"; } function isLocked() { return $this->isLocked; } } class Door { function Door($lock) { $this->lock = $lock; $this->connectsTo = 'bedroom'."\n"; } function open() { if ($this->lock->isLocked()) { echo 'Cannot open Door. It is locked.'."\n"; } else { echo 'You opened the Door connecting to: ', $this->connectsTo."\n"; } } } $lock = new Lock; $door = new Door($lock); $door->open(); $lock->unlock(); $door->open();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined property: Door::$lock in /in/00jqr on line 30 Fatal error: Uncaught Error: Call to a member function isLocked() on null in /in/00jqr:30 Stack trace: #0 /in/00jqr(41): Door->open() #1 {main} thrown in /in/00jqr on line 30
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 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; Lock has a deprecated constructor in /in/00jqr on line 3 Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Door has a deprecated constructor in /in/00jqr on line 21 You locked the Lock Cannot open Door. It is locked. You unlocked the Lock You opened the Door connecting to: bedroom
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 - 5.6.28, 7.3.32 - 7.3.33
You locked the Lock Cannot open Door. It is locked. You unlocked the Lock You opened the Door connecting to: bedroom
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
You locked the Lock Cannot open Door. It is locked. You unlocked the Lock Cannot open Door. It is locked.
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265.01 ms | 402 KiB | 353 Q