获取变量类型
$num=2212.222;
echo gettype($num);
判断变量类型
if(is_integer($num)){
echo "yes";
}else{
echo "no";
}
数据类型转换
$num="22";
$num=(integer)$num;
echo $num;
获取变量类型
$num=2212.222;
echo gettype($num);
判断变量类型
if(is_integer($num)){
echo "yes";
}else{
echo "no";
}
数据类型转换
$num="22";
$num=(integer)$num;
echo $num;