PHP Class Variables Reassignment

Question

Is it possible to make the following bar() method return "blue"?

class TestClass
{
    public $var1 = "red";

    public function foo() //returns red
        {
            return $this->var1;
        }

    public function bar() //still returns red
        {
            $this->var1 = "blue";

            return $this->var1;
        }
}

I know that class properties can't be variables, results of addition, etc. I read about overloading using __set and __get, however that seems to be geared towards totally dynamic properties.

The above returns "blue" for me on PHP 3.5.3 when I follow it with $t = new TestClass; echo $t->bar();. How are you calling bar()? Since $var1 is non-static, it is an instance property instead of a class property. — David Harkness
– David Harkness, Commented Mar 16, 2011 at 20:28
I think you mean 5.3.3? Or you got a helluva old version of PHP David =) — PatrikAkerstrand
– PatrikAkerstrand, Commented Mar 16, 2011 at 20:31
@PatrikAkerstrand - LOL, yes. Too much time with PHPUnit. ;) — David Harkness
– David Harkness, Commented Mar 16, 2011 at 20:34

Charles · Accepted Answer · 2011-03-16 20:28:01Z

3

Your code currently works as you describe it. From the PHP interactive shell:

php > $t = new TestClass();
php > echo $t->foo();
red
php > echo $t->bar();
blue
php > echo $t->foo();
blue

Perhaps you can explain your problem in a different way?

answered Mar 16, 2011 at 20:28

Charles

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2 Comments

Alex Bailey Over a year ago

same for me, works perfectly fine and I see no reason why it shouldn't

anthony Over a year ago

Thanks for the reply. I got it working. It was a typo all along.

Tariq · Accepted Answer · 2011-03-16 20:35:17Z

0

You can update bar() method as set bar with optional parameter.

public function bar($mycolor='red') { $this->var1 = $mycolor; return $this->var1; }

answered Mar 16, 2011 at 20:35

Tariq

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