PHP Static Variables with Examples
by TechVidvan Team
Program 1
<html>
<head><title>Demo</title></head>
<body>
<center>
<?php
class Myclass
{
public static $n=0;
function __construct()
{
++self::$n;
}
function display()
{
echo "Total Object: ".self::$n;
echo "<br>";
}
}
// Create Object
$M1=new Myclass(); // M1->n=1
$M2=new Myclass(); // M2->n=1
$M3=new Myclass(); // M3->n=1
$M4=new Myclass(); // M1->n=1
$M5=new Myclass(); // M2->n=1
$M6=new Myclass();
$M7=new Myclass(); // M1->n=1
$M8=new Myclass(); // M2->n=1
$M9=new Myclass();
//$M1->display();
// $M2->display();
$M3->display();
?>
</center>
</body>
</html>Program 2
<html>
<head><title>Demo</title></head>
<body>
<center>
<?php
class Student
{
public $name;
public static $clgname="XYZ Indore College";
function __construct($n)
{
$this->name=$n;
}
function display()
{
echo " Student Name: ".$this->name;
echo " College Name: ".self::$clgname;
}
static function add($a,$b)
{
$c=$a+$b;
echo "Addition is: ".$c;
}
}
echo Student::$clgname;
// Student::add(50,20);
// $S1=new Student("Rajesh");
// $S2=new Student("Anil Sharma");
// $S3=new Student("Ritu");
// $S1->display();
// $S2->display();
// $S3->display();
?>
</center>
</body>
</html>
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TechVidvan Team
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