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<?php $foo = 1; $bar = 2; $baz = 4; $fooBarBaz = null; $fooBarBaz |= $foo; $fooBarBaz |= $bar; $fooBarBaz |= $baz; var_dump($fooBarBaz);
Output for git.master, git.master_jit, rfc.property-hooks
int(7)

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