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<?php class A {}; var_dump((new A()) instanceof 5);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected '5' (T_LNUMBER) in /in/umXjS on line 5
Process exited with code 255.
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171.11 ms | 1395 KiB | 36 Q