3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Message implements \Stringable { private $message; public function __construct($message) { $this->message = $message; } public function __toString() { return $this->message; } } echo json_encode(['message' => 'string']), PHP_EOL, json_encode(['message' => new Message('stringable')]);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
{"message":"string"} {"message":{}}
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 {"message":"string"} {"message":{}}
Output for 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Interface 'Stringable' not found in /in/9TdNd:3 Stack trace: #0 {main} thrown in /in/9TdNd on line 3
Process exited with code 255.
preferences:
128.27 ms | 401 KiB | 123 Q