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run code in 200+ php & hhvm versions
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<?php var_dump( (int) 0x0fffffffffffffff ); var_dump( (int) 0x0ffffffffffffffe ); var_dump( (int) 0x0ffffffffffffffd );
Output for 4.3.0 - 7.2.0
int(1152921504606846975) int(1152921504606846974) int(1152921504606846973)