Question

when I run the below code I got error in line echo $attribute;
The error code: “Catchable fatal error: Object of class SomeShape could not be converted to string in “:
What wrong in this code?
Thanks.

<?php

   class Shape
    {
      static public $width;
      static public $height;
    }

 class SomeShape extends Shape
    {
         public function __construct()
      {
        $test=self::$width * self::$height;
        echo $test;
        return $test;
      }
    }

    class SomeShape1 extends Shape
    {
         public function __construct()
      {
        return self::$height * self::$width * .5;
      }
    }

    Shape::$width=60;
    Shape::$height=5;
    echo Shape::$height;
    $attribute = new SomeShape;
    echo $attribute;
    $attribute1 = new SomeShape1;
    echo $attribute1;
?>

Answer 1

What you are trying to do is echo an object, its like you are echoing an array(worst than echoing an array since echoing an object throuws error), while what you should be doing is accessing it’s attribute or method etc. However if u wanna c what is in your object, you gotto use var_dump instead of echo .

In short, echo $attribute is wrong. Use var_dump($attribute)