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<?php namespace Wat; if(!defined(foo)) { const foo = 'bar'; } var_dump(defined('Wat\\foo')); var_dump(defined('Wat\\foox'));
Output for 5.6.38, 7.1.0 - 7.1.23, 7.2.0 - 7.2.11
Parse error: syntax error, unexpected 'const' (T_CONST) in /in/EaQPV on line 5
Process exited with code 255.

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