这是一个php版的简单计算器，功能不是太多，加、减、乘、除、求余。。通过ie9和firefox、谷歌测试。



php版简单计算器 2.1 更新内容：

较2.0，修改了输入“0”提示为空的错误

作为一个简单的计算器，貌似。。。只能这样了。。。等我想出其他花招来再接着升级吧，如果有啥bug,请提出来哦-This is a php version of a simple calculator function is not too much, add, subtract, multiply, divide, remainder. . By ie9 and firefox, Google tested. simple calculator php version 2.1 update: over 2.0, modify the input " 0"　prompt empty error as a simple calculator, looks like. . . Only be the case. . . So I came up with other tricks to upgrade and then followed it, if so what bug, please come oh