echo vs echo intval PHP
问题描述：
请以下某人解释结果差异
Please can some one explain the result differences below
echo intval(1e10);
输出1410065408
echo 1e10;
输出10000000000
答
带符号整数具有最大值.在32位系统上，该值为2 ^ 16或2147483647.intval-输入更大的数字时，它将溢出.您找到的值也可以计算:
A signed integer has a maximum value. On 32-bit systems, that's 2^16 or 2147483647. When intval-ing a number that's larger, it will overflow. The value you found can also calculated:
php > echo 1e10 % (2147483647);
1410065408