gistfile1.php

<?php

    public function getSqlDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
    {
        $values = array_map(function($val) {
            return "'".$val."'";
        }, $this->values);
 
        return "ENUM(".implode(", ", $values).") COMMENT '(DC2Type:".$this->name.")'";
    }

// BECOMES...

    public function getSqlDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
    {
        $values = array_map(function($val) {
            return "'$val'";
        }, $this->values);
 
        return 'ENUM(' . implode(', ', $values) . ") COMMENT '(DC2Type:{$this->name})'";
    }

// OR JUST SHORTER...

    public function getSqlDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
    {
        return "ENUM('" . implode("', '", $this->values) . "') COMMENT '(DC2Type:{$this->name})'";
    }