note 74767 modified in function.intval by danbrown

Since integers are stored on multiple bytes in the memory in binary format, once an signed long integer reaches the maximum value of 2147483646 (which is the maximum value that 8 bits of memory, size of a long int, can store, binary-wise), atleast on C/C++ the number starts to roll back, going gradually to ...45, ...45 and eventually reaching a negative value. Some REALLY large values will return -1, probably because PHP simply rejects the number, though I'm not sure why. For further info: http://www.rwc.uc.edu/koehler/comath/13.html --was-- Indeed, as stated by David, since integers are stored on multiple bytes in the memory in binary format, once an signed long integer reaches the maximum value of 2147483646 (which is the maximum value that 8 bits of memory, size of a long int, can store, binary-wise), atleast on C/C++ the number starts to roll back, going gradually to ...45, ...45 and eventually reaching a negative value. Some REALLY large values will return -1, probably because PHP simply rejects the number, though I'm not sure why. For further info: http://www.rwc.uc.edu/koehler/comath/13.html http://php.net/manual/en/function.intval.php