1--TEST-- 2Zend signed multiply 64-bit 3--SKIPIF-- 4<?php if ((1 << 31) < 0) print "skip Running on 32-bit target"; ?> 5--FILE-- 6<?php 7var_dump(0x80000000 * -0xffffffff); 8var_dump(0x80000001 * 0xfffffffe); 9var_dump(0x80000001 * -0xffffffff); 10?> 11--EXPECTF-- 12int(-9223372034707292160) 13int(9223372036854775806) 14float(-9.2233720390023E+18) 15