CODEWITHSUNDEEP
phplaravelframeworksclosuresanonymous
EldinPHP
EldinPHP

Reputation: 13

Catchable fatal error: Object of class Closure could not be converted to string

I am learning more about closures, and I want to re-create something similar to Laravel's route function.

SO i have the following code:

<?php



Class Foo{


    public static function show($second, $third){

        return "First " . $second . $third;

    }

}


echo $my_var = Foo::show("Second ", function(){

    return "Third ";

});

but if I run it, I get "Catchable fatal error: Object of class Closure could not be converted to string " error.

If I remove the variable $third from the Foo::show function, theres no errors given, but of course i dont see the third variable.

I was expecting result : First Second Third;

What gives ? I am just learning.. :)

Upvotes: 0

Views: 4000

Answers (1)

u_mulder
u_mulder

Reputation: 54841

As $third is a function, to get it's returned value - you must call it. Function call is usually done with (), so the change is: 

return "First " . $second . $third();

Here, function passed as $third argument is executed, string Third returned and concatenated with previous string.

Upvotes: 1

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