PHP Example: Commonly Used Numerical Judgment Functions_PHP Tutorial

WBOY
Release: 2016-07-13 17:29:51
Original
1019 people have browsed it

Commonly used object type judgments


Commonly used numerical judgment functions


< ;?
//Judge array
$colors = array("red", "blue", "green");
if(is_array($colors))
{
print( "colors is an array"."
");
}
//Double precision number judgment
$Temperature = 15.23;
if(is_double($Temperature))
{
print("Temperature is a double"."
");
}
//Integer judgment
$PageCount = 2234;
if(is_integer($PageCount) )
{
print("$PageCount is an integer"."
");
}
//Object judgment
class widget
{
var $name;
var $length;
}
$thing = new widget;
if(is_object($thing))
{
print("thing is an object". "
");
}
//Character judgment
$Greeting = "Hello";
if(is_string($Greeting))
{
print(" Greeting is a string"."
");
}
?>


www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/509204.htmlTechArticleCommonly used object type judgments HTML HEAD TITLE Commonly used numerical judgment functions/TITLE /HEAD BODY ? //Judge array$ colors = array("red", "blue", "green"); if(is_array($colors)) { print("col...
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template