Unexpected T_PAAMAYIM_NEKUDOTAYIM in PHP 5.2.x

php, php-5.2

Solution

After looking at codepad:

if (is_object($result) === true)
{
    $result::id = strval($xpto);
}

... should be

if (is_object($result) === true)
{
    $result::$id = strval($xpto);
}

I corrected this in a new paste, and the error still exists... just letting you know about the problem in the demo code.

EDIT

Per PHP documentation page on `static` keyword,

As of PHP 5.3.0, it's possible to reference the class using a variable. The variable's value can not be a keyword (e.g. self, parent and static).

Unfortunately, no detail is given as to WHY to was otherwise in prior versions, nor do I see a workaround presented in the comments.

Because the class is static, though, you should be able to change the property directly:

function instance($xpto = null)
{
    static $result = null;

    if (is_null($result) === true)
    {
        $result = new xpto();
    }

    if (is_object($result) === true)
    {
        xpto::$id = strval($xpto)
    }

    return $result;
}

Problem

I'm having a hard time understanding why I'm getting an `Unexpected T_PAAMAYIM_NEKUDOTAYIM` error in the following code, which seems perfecly valid to me... ``` class xpto { public static $id = null; public function __construct() { } public static function getMyID() { return self::$id; } } function instance($xpto = null) { static $result = null; if (is_null($result) === true) { $result = new xpto(); } if (is_object($result) === true) { $result::$id = strval($xpto); } return $result; } ``` Output in PHP 5.3+: ``` echo var_dump(instance()->getMyID()) . "\n"; // null echo var_dump(instance('dev')->getMyID()) . "\n"; // dev echo var_dump(instance('prod')->getMyID()) . "\n"; // prod echo var_dump(instance()->getMyID()) . "\n"; // null ``` In prior versions however, I can't do `$result::$id = strval($xpto);`, does anyone know why? Are there any workarounds for this problem?

Original source

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