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run code in 300+ PHP versions simultaneously
<?php var_dump(unserialize('O:7:"cywm528":-1:{}'));
Output for 8.3.0 - 8.3.6
Warning: unserialize(): Error at offset 16 of 19 bytes in /in/MXEDo on line 3 bool(false)
Output for 7.4.0 - 7.4.25, 7.4.27 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Notice: unserialize(): Error at offset 16 of 19 bytes in /in/MXEDo on line 3 bool(false)
Output for 7.3.32 - 7.3.33, 7.4.26
bool(false)
Output for 5.6.30 - 5.6.40, 7.0.15 - 7.0.33, 7.1.1 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Notice: unserialize(): Error at offset 18 of 19 bytes in /in/MXEDo on line 3 bool(false)
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 - 5.6.29, 7.0.0 - 7.0.14, 7.1.0
object(__PHP_Incomplete_Class)#1 (1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "cywm528" }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
object(__PHP_Incomplete_Class)(1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "cywm528" }

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275.88 ms | 401 KiB | 459 Q