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<?php const READ = 1; const WRITE = 2; const READ_WRITE = 3; function test($mask) { if ($mask & READ_WRITE) { echo 'Read/Write!' . PHP_EOL; return; } if ($mask & READ) { echo 'Read!' . PHP_EOL; return; } if ($mask & WRITE) { echo 'Write!' . PHP_EOL; return; } echo 'Failure!' . PHP_EOL; } test(0); test(READ); test(WRITE); test(READ | WRITE);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Failure! Read/Write! Read/Write! Read/Write!
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_CONST in /in/NYAEK on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONST in /in/NYAEK on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/NYAEK on line 3
Process exited with code 255.

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