Language: PHP
Label: safe
CWE: CWE-89 \u2014 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.

Code:
    public function isValidOrderKey($key)
    {
        return in_array(
            $key,
            [
                'type',
                'id',
                'key',
                'index',
                'fullpath',
                'maintype',
                'subtype',
                'published',
                'creationDate',
                'modificationDate',
                'userOwner',
                'userModification',
                'data',
                'properties'
            ]
        );
    }