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run code in 300+ PHP versions simultaneously
<?php $data["A"]="AAAA"; $pass="B"; unserialize(urldecode('%73%3a%31%3a%22%70%61%73%73%22%3b%73%3a%34%3a%22%41%41%41%41%22%3b')); var_dump($data["A"] == $pass); //echo urlencode(serialize($data));
Output for 8.3.0 - 8.3.7
Warning: unserialize(): Error at offset 6 of 22 bytes in /in/rabc1 on line 6 bool(false)
Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19
Notice: unserialize(): Error at offset 6 of 22 bytes in /in/rabc1 on line 6 bool(false)
Output for 7.3.32 - 7.3.33
bool(false)

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205.92 ms | 402 KiB | 217 Q