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run code in 300+ PHP versions simultaneously
<?php $x = 'a:2:{i:0;O:9:"exception":1:{s:17:"'."\0".'Exception'."\0".'string";i:1;}i:1;R:3;}'; $x = unserialize($x); var_dump(gettype($x[1]));
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: Cannot assign int to property Exception::$string of type string in /in/t3HI8:4 Stack trace: #0 /in/t3HI8(4): unserialize('a:2:{i:0;O:9:"e...') #1 {main} thrown in /in/t3HI8 on line 4
Process exited with code 255.
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.20, 7.1.5 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
string(7) "integer"
Output for 7.0.0 - 7.0.6, 7.1.0
Notice: Undefined offset: 1 in /in/t3HI8 on line 6 string(4) "NULL"

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