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<?php var_dump(unserialize('o:1:"":0:{}'));
Output for 8.3.0 - 8.3.4
Warning: unserialize(): Error at offset 0 of 11 bytes in /in/cltEp on line 2 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 - 8.1.27, 8.2.0 - 8.2.17
Notice: unserialize(): Error at offset 0 of 11 bytes in /in/cltEp on line 2 bool(false)
Output for 7.3.32 - 7.3.33, 7.4.26
bool(false)
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.31
Notice: unserialize(): Error at offset 5 of 11 bytes in /in/cltEp on line 2 bool(false)
Output for 4.3.0 - 4.3.1
Notice: unserialize() [http://www.php.net/function.unserialize]: Error at offset 5 of 11 bytes in /in/cltEp on line 2 bool(false)

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