http://docs.php.net/manual/zh/language.types.intro.php
如果只是想得到一个易读懂的类型的表达方式用于调试,用 gettype() 函数。要查看某个类型,不要用 gettype(),而用 is_type 函数。
问题:
1.PHP手册,有is_type( )函数么?
回复讨论(解决方案)
is_array -- 检测变量是否是数组
is_bool -- 检测变量是否是布尔型
is_callable -- 检测参数是否为合法的可调用结构
is_double -- is_float() 的别名
is_float -- 检测变量是否是浮点型
is_int -- 检测变量是否是整数
is_integer -- is_int() 的别名
is_long -- is_int() 的别名
is_null -- 检测变量是否为 NULL
is_numeric -- 检测变量是否为数字或数字字符串
is_object -- 检测变量是否是一个对象
is_real -- is_float() 的别名
is_resource -- 检测变量是否为资源类型
is_scalar -- 检测变量是否是一个标量
is_string -- 检测变量是否是字符串

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