w3resource

php.js : is_object() function

is_object() function

The is_object() function is used to check whether a variable is an object or not. The function returns true if the variable is an object otherwise false.

Version

1103.1210

Syntax:

is_object(var_name)

Parameters:

Name Description Required /
Optional
Type
var_name The variable being checked Required Mixed*

*Mixed : Mixed indicates that a parameter may accept multiple (but not necessarily all) types.

Example of php.js is_object() function:

In the following web document is_object() function test whether a variable type is an object or not.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>php.js : is_object() function example</title>
<script type="text/javascript" src="../../phpjs/variable/variable.min.js"> </script>
</head>
<body>
<h1 style="color: green">php.js : is_object() function example</h1>
<h3>Check whether a variable is an object or not.... </h3>
<hr />
<script type="text/javascript">
//This is done to make the following JavaScript code compatible to XHTML. <![CDATA[
function studentDetails()
{
document.write( "The name of the student is " + this.name + " Class : " + this.class + " Roll No.: " + this.rollno+ '<br />')
}
function student(name, class, rollno)
{
this.name = name
this.class = class
this.rollno = rollno
this.studentDetails = studentDetails
}
studentv = new student("John", "V", 10);
studentv.studentDetails();
studentvi = new student("David Rayy", "VI", 12);
studentvi.studentDetails();
if (is_object(studentvi))
document.write("It is an object");
//]]>
</script>
</body>
</html>  

Output of the function:

The name of the student is John Class : V Roll No.: 10
The name of the student is David Rayy Class : VI Roll No.: 12
It is an object 

View example of php.js is_object() function in browser

Download phpjs.zip

Previous: php.js : is_numeric() function
Next: php.js : is_real() function



Share this Tutorial / Exercise on : Facebook and Twitter