CODEWITHSUNDEEP
phpclassobjectaccess-modifiers
Sarfaraaz
Sarfaraaz

Reputation: 488

How to filter properties by access modifier

So I would like to output the properties that are public only from within an class.

class MyClass
{
    $public $var1, $var2, var3;
    $private $pVar1, $pVar2, pVar3;

    //outputs all variables and their values
    //lets assume they are all defined
    function outputPublic()
    {
        foreach($this as $key=>$val)
            echo $key . ' : ' . $val . '<br>';
    }
}

I've got this working by using an external function to cycle through an instance of the class but I want to know how to do this from inside. Is there a way to get the access modifier?

example of retrieving public properties externally

$obj = new MyClass();
foreach($obj as $key=$val)
    echo $key . ' : ' . $val;

Upvotes: 4

Views: 401

Answers (1)

Federkun
Federkun

Reputation: 36964

There are different way. You can use get_object_vars

foreach(call_user_func('get_object_vars', $this) as $key => $val) {
    echo $key . ' : ' . $val . '<br>';
}

or you can use ReflectionClass

$reflect = new ReflectionClass($this);
foreach($reflect->getProperties(ReflectionProperty::IS_PUBLIC) as $props) {
    echo $props->getName() . ' : ' . $props->getValue($this) . '<br>';
}

I recommend using ReflectionClass instead of get_object_vars, which from php 7 you get another behavior.

Upvotes: 3

Related Questions