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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(serialize(['serviceseq' => null]));
Output for 5.4.0 - 7.2.0
string(26) "a:1:{s:10:"serviceseq";N;}"
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/qAqWL on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ')' in /in/qAqWL on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/qAqWL on line 3
Process exited with code 255.