Unexpected token: ??

[richardbrinkman]

PHP has introduced the ?? operator. Example usage:

$var = $_GET["param"] ?? "default value"

which is roughly equivalent to:

$var = isset($_GET["param"]) ? $_GET["param"] : "default value"

phpmd gives an Unexpected token: ?? error when these new constructs are used.

[mdeboer]

Are you sure you don't have two PHP versions installed? PHPMD could be run with an older version of PHP than your code is written in.

[richardbrinkman]

Yes I'm sure I run only one PHP version (7.0.22).

Sample PHP file (test.php):

<?php
    var_dump($_GET["var"] ?? "default");
?>

Command: phpmd test.php text cleancode

Output:

/tmp/test.php   -   Unexpected token: ??, line: 2, col: 24, file: /tmp/test.php.

[mdeboer]

What OS are you running? If you're on linux/OSX, can you post the output of: env php -v?

phpmd uses the php binary that's in your PATH and the only thing I can think of it's using a different version (pre 7.0).

[richardbrinkman]

OS: lubuntu 16.04.03 (LTS)

env php -v:

PHP 7.0.22-0ubuntu0.16.04.1 (cli) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
    with Zend OPcache v7.0.22-0ubuntu0.16.04.1, Copyright (c) 1999-2017, by Zend Technologies
    with Xdebug v2.4.0, Copyright (c) 2002-2016, by Derick Rethans

phpmd version: 2.3.2-1build1

running php test.php dumps the expected "default", so surely php 7.0.22 knows the ?? operator.

[ravage84]

What version of Pdepend are you using? If I recall correctly, the newest version of it should fully support PHP 7.0.

[richardbrinkman]

pdepend version 2.2.2-1build1

[ravage84]

Can you please verify that behavior with Pdepend 2.5.0? It Should have full PHP 7.0 support.

[tvbeek]

@richardbrinkman can you verify this?

[kylekatarnls]

I can't reproduce I use ?? very often with no incompatibility when running PHPMD. I think it has been fixed in PDepend since.

[richardbrinkman]

The error does not appear any more.