1.2.975. Php7 Relaxed Keyword

Most of the traditional PHP keywords may be used inside classes, enums, traits and interfaces: they can be used as constant or method name.

It is recommended to use this syntax cautiously, as it leads to a lot of surprises and confusion from unususpecting developpers.

This was not the case in PHP 5, and will yield parse errors.

<?php

// Compatible with PHP 7.0 +
class foo {
     const array = [];

    // as is a PHP 5 keyword
    public function as() {
     print_r(self::array);
    }
}

?>

See also Loosening Reserved Word Restrictions.

1.2.975.1. Specs

Short name	Php/Php7RelaxedKeyword
Rulesets	All, Appinfo, CE, CompatibilityPHP53, CompatibilityPHP54, CompatibilityPHP55, CompatibilityPHP56
Exakat since	0.8.4
PHP Version	With PHP 7.0 and more recent
Severity	Major
Time To Fix	Slow (1 hour)
Precision	Very high
Features	keyword, reserved-name
Related rule	No Keyword In Namespace
Available in	Entreprise Edition, Community Edition, Exakat Cloud