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<?php $a = (object) ["a" => "c"]; $b = (object) ["b" => "b"]; var_dump($a<=>$b); ?>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(1)
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Parse error: syntax error, unexpected '>' in /in/74Zkk on line 4
Process exited with code 255.

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186.44 ms | 402 KiB | 182 Q