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run code in 300+ PHP versions simultaneously
<?php class A { public $x; public function __construct() { $this->x = 1; } public function __sleep() { return [ 'x', 'a' ]; } } $a = new A; var_dump( unserialize( serialize( $a ) ) );
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: serialize(): "a" returned as member variable from __sleep() but does not exist in /in/1PYc9 on line 17 object(A)#2 (1) { ["x"]=> int(1) }
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 Warning: serialize(): "a" returned as member variable from __sleep() but does not exist in /in/1PYc9 on line 17 object(A)#2 (1) { ["x"]=> int(1) }
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
Notice: serialize(): "a" returned as member variable from __sleep() but does not exist in /in/1PYc9 on line 17 object(A)#2 (2) { ["x"]=> int(1) ["a"]=> NULL }
Output for 7.3.32 - 7.3.33
object(A)#2 (2) { ["x"]=> int(1) ["a"]=> NULL }

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194.96 ms | 401 KiB | 206 Q