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<?php $constants = preg_grep('/^E_/', array_keys(get_defined_constants())); $constants = array_combine($constants, array_map('constant', $constants)); asort($constants); foreach ($constants as $constant => $value) { printf("%016b %s\n", $value, $constant); }
Output for git.master, git.master_jit, rfc.property-hooks
0000000000000001 E_ERROR 0000000000000010 E_WARNING 0000000000000100 E_PARSE 0000000000001000 E_NOTICE 0000000000010000 E_CORE_ERROR 0000000000100000 E_CORE_WARNING 0000000001000000 E_COMPILE_ERROR 0000000010000000 E_COMPILE_WARNING 0000000100000000 E_USER_ERROR 0000001000000000 E_USER_WARNING 0000010000000000 E_USER_NOTICE 0000100000000000 E_STRICT 0001000000000000 E_RECOVERABLE_ERROR 0010000000000000 E_DEPRECATED 0100000000000000 E_USER_DEPRECATED 0111111111111111 E_ALL

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