PHP toString Function
In PHP 5.3.0 a method has been introduced called toString(), basic functionality of the method is to print an object, how? current tutorial is trying to focus on this topic.
In PHP 5.3.0 a method has been introduced called toString(), basic functionality of the method is to print an object, how? current tutorial is trying to focus on this topic.__toString method in PHP:
In the previous versions of PHP it is not possible to convert an object to a string value, but with the invent of _toString method now it is just a function call away.
This method is called implictly, whenever an object is instantiated we need to pass a string value to the __construct() function (the constructor ) and assign the value to a variable. After instantiation of the object, if we try to print the object, __toString() function is called implicitly and print the value of the member variable.
PHP toString Function Example:
<?php
class A
{
private $var;
public function __construct($var){
$this->var=$var;
}
public function __toString()
{
return $this->var;
}
}
$obj=new A('Hi');
echo $obj;
?>
Output:
Hi
