CODEWITHSUNDEEP
phpclassvariablesstaticstatic-methods
Clandestine
Clandestine

Reputation: 1499

Assign static method output to static member variable in php

I'm trying to assign the output of a static method to a static variable in PHP, but always get the error.

Parse error: syntax error, unexpected T_FUNCTION in ./MyClass.php on line 8

class MyClass
{
    public static function myMethod()
    {
        return array('a' => 'b'); //some array
    }

    public static $myarr = self::myMethod();
}

I've also tried...

class MyClass
{
    public static $myarr = call_user_func(function
        {
            return array('a' => 'b'); //some array
        }
    );
}

...but I get the same error on line 3. I've gone through this a bunch of times and I don't see any typos, so I'm not sure what I'm doing wrong. Any ideas?

Upvotes: 0

Views: 211

Answers (2)

Mark Baker
Mark Baker

Reputation: 212502

You cannot assign a value to a static variable by calling a function at declaration time.

Quoting from the manual (my emphasis):

They are defined by using one of the keywords public, protected, or private, followed by a normal variable declaration. This declaration may include an initialization, but this initialization must be a constant value -- that is, it must be able to be evaluated at compile time and must not depend on run-time information in order to be evaluated.

Upvotes: 4

Ben Fortune
Ben Fortune

Reputation: 32127

Change:

public static myMethod()

To:

public static function myMethod()

Upvotes: 1

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