"; echo "标量数据类型
"; echo "  布尔型
"; echo "  整型
"; echo "  浮点型
"; echo "  字符型
"; echo "复合数据类型
"; echo "  数组
"; echo "  对象
"; echo "特殊数据类型
"; echo "  资源类型
"; echo "  空类型
"; echo "伪类型--通常在函数定义中使用
"; echo TRUE; ?>