问题
in php5, pass a 64bit integer, 1707541557936130 through GET, but it shows value of 1.7075415579361E+15
how can I force php to use large integers as integers, not as float
when I shift << apparently the result of that is int32 as well, not int64
is there a way to globally say use int64?
回答1:
PHP supports 64bit integers only on 64bit systems. In both cases integers, that are larger than PHP_INT_MAX, are converted to floats. see manual.
Try this code:
<?php
$i=1707541557936130;
var_dump($i);
echo PHP_INT_MAX;
来源：https://stackoverflow.com/questions/8701655/php5-converts-64-bit-integer-to-double-how-force-64-bit