How to create new php objects within a loop?

Question

I've got an array with some php class names (e.g. ClassOne.php)

classes = [ 'ClassOne' ,  'ClassTwo' ,  'ClassTree' ];

I want to write a loop that creates a new object for each of the class names. Without a loop, it looks like this:

$class1 = new ClassOne;
$class2 = new ClassTwo;
$class3 = new ClassTree;

After that object creation I want to check if $class1,2,3, ... is a instance of the main class (Components)

Is it possible to store the new objects in a array that can get iterated like this?

    $classes = [ $classs1, $class2, $class3 ];
    foreach($classes as $class)
    {
        if (is_object($class) && $class instanceof Component)
        {
             echo 'is an instance of Components';
        }
    }

So do these 3 classes actually exist? Like do you have a Class ClassOne {} etc — RiggsFolly
– RiggsFolly, Commented May 16, 2019 at 12:20
@RiggsFolly yes they allready exist. Now I want to proof if the class names in the array are instances of the class components — phpprogrammerhelp312
– phpprogrammerhelp312, Commented May 16, 2019 at 12:22
Tidied up the wording and code formating to improve readability. — belwood
– belwood, Commented May 17, 2019 at 21:16

dWinder · Accepted Answer · 2019-05-16 12:25:04Z

2

You do simple loop as:

foreach($phpclasses as $class) {
    $classes[] = new $class();
}

Or you can cobine your loop and do:

foreach($phpclasses as $class) {
    $c = new $class();
    if (is_object($c) && $cinstanceof Component)
        echo 'is an instance of Components';
}

Can look at this question also

edited May 16, 2019 at 12:25

answered May 16, 2019 at 12:22

dWinder

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2 Comments

phpprogrammerhelp312 Over a year ago

thanks for your fast answer. I there a opportunity to do this also for classes with a constructor? So if something is needed to create a new object of a class

dWinder Over a year ago

@phpprogrammerhelp312 Sure - see how it works with constructor here: 3v4l.org/stjco

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