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run code in 300+ PHP versions simultaneously
<?php class foo { } $foo->bar = 'baz'; $blah = $foo; $blah = 'bazbaz'; debug_zval_dump($foo); debug_zval_dump($blah);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Attempt to assign property "bar" on null in /in/Sv89G:6 Stack trace: #0 {main} thrown in /in/Sv89G on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0, 7.1.7 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Creating default object from empty value in /in/Sv89G on line 6 object(stdClass)#1 (1) refcount(2){ ["bar"]=> string(3) "baz" refcount(1) } string(6) "bazbaz" refcount(1)
Output for 7.1.5 - 7.1.6
Warning: Creating default object from empty value in /in/Sv89G on line 6 object(stdClass)#1 (1) refcount(2){ ["bar"]=> string(3) "baz" refcount(2) } string(6) "bazbaz" refcount(3)
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Warning: Creating default object from empty value in /in/Sv89G on line 6 object(stdClass)#1 (1) refcount(2){ ["bar"]=> string(3) "baz" refcount(1) } string(6) "bazbaz" refcount(2)
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
Strict Standards: Creating default object from empty value in /in/Sv89G on line 6 object(stdClass)#1 (1) refcount(2){ ["bar"]=> string(3) "baz" refcount(1) } string(6) "bazbaz" refcount(2)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
object(stdClass)(1) refcount(2){ ["bar"]=> string(3) "baz" refcount(1) } string(6) "bazbaz" refcount(2)

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