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run code in 300+ PHP versions simultaneously
<?php if (!defined('PHP_INT_MAX')) { $min = -1; do { $last = $min; } while(0 > $min <<= 1); define('PHP_INT_MIN', $last); define('PHP_INT_MAX', ~$last); } class Object { var $foo, $id; function Object() { static $counter = 0; if (PHP_INT_MAX === $this->id = ++$counter) { $counter = PHP_INT_MIN; } } } $a = new Object; $b = new Object; $a->foo = 1; $b->foo = 1; var_dump($a == $b, $a === $b);
Output for 7.2.6 - 7.2.33, 7.3.16 - 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 - 8.3.6
Fatal error: Cannot use 'Object' as class name as it is reserved in /in/rT00G on line 13
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Object has a deprecated constructor in /in/rT00G on line 13 bool(false) bool(false)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.1.3 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
bool(false) bool(false)
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.2
Strict Standards: var: Deprecated. Please use the public/private/protected modifiers in /in/rT00G on line 15 bool(false) bool(false)
preferences:
205.34 ms | 402 KiB | 311 Q