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<?php var_dump(PHP_INT_MIN); var_dump(gettype(PHP_INT_MIN)); var_dump(gettype(-PHP_INT_MAX - 1)); var_dump(gettype(-9223372036854775808)); var_dump(is_int(PHP_INT_MIN)); var_dump(is_int(-9223372036854775808)); var_dump(-PHP_INT_MAX - 1 === -9223372036854775808); var_dump(0x80000001 << 32); var_dump(-PHP_INT_MAX); var_dump(-PHP_INT_MAX - 1); var_dump(-PHP_INT_MAX - 2); var_dump(-9223372036854775807); var_dump(-9223372036854775808); var_dump(-9223372036854775809);

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