PHP的几个常用数字判断函数代码,主要包括双精度,整数,字符判断等。
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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