PHP: dynamic $this->class->function

Question

I was wondering if there is such a thing like dynamic Class and Function calling possible?

For example, I have these two operations:

$this->foo->value();

$this->bar->value();

and I would like to call it somewhat like this:

$this->($var)->value();

right now I'm doing it this way (but would love the above methode)

if($var == 'foo')
    $this->foo->value(); 
else 
    $this->bar->value();

PHP is interpreted so you can use objects without defining them first. — MahanGM
– MahanGM, Commented Oct 16, 2013 at 17:49

Sammitch · Accepted Answer · 2013-10-16 17:23:16Z

1

You almost had it.

$var = 'foo';
$this->$var->value();

Is equivalent to

$this->foo->value():

Similarly:

$var = 'bar';
$this->foo->$var();

Is equivalent to;

$this->foo->bar();

answered Oct 16, 2013 at 17:23

Sammitch

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3 Comments

random_user_name Over a year ago

What's your position on curly braces? $this->{$var}->value(); ? I tend to like them because they make it a bit more visually clear that the method is a variable.

Scratch. Over a year ago

Cool thanks, that actually work.. do you also know if something like this is possible: $this->($this->pageClass->value)->value(); ?

Scratch. Over a year ago

wow thanks cale_b.. that did the trick :D I would upvote you two but sadly I can`t yet as new member ;)

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