PHP实例:常用的数值判断函数_[PHP教程] 常用的对象类型判断
常用的数值判断函数
//判断数组 colors = array("red", "blue", "green"); if(is_array(colors)) { print("colors is an array"." "); } //双精度数判断 Temperature = 15.23; if(is_double(Temperature)) { print("Temperature is a double"." "); } //整数判断 PageCount = 2234; if(is_integer(PageCount)) { print("PageCount is an integer"." "); } //对象判断 class widget { var name; var length; } thing = new widget; if(is_object(thing)) { print("thing is an object"." "); } //字符判断 Greeting = "Hello"; if(is_string(Greeting)) { print("Greeting is a string"." "); } ?>
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