Really terrible code, seriously just awful

reversemigration.php

<?php

class ReverseMigration_Task
{

        function __construct()
        {
                $this->sql_types = array(
                        'int' => 'integer',
                        'varchar' => 'string',
                        'date' => 'date',
                        'tinyint' => 'boolean',
                        'datetime' => 'date',
                        'text' => 'text',
                );
        }

        public function run($arguments)
        {
                if( empty( $arguments ) )
                {
                        echo "Usage: php artisan reversemigration <tablename> <migration_name>";
                        return;
                }
                if( !isset( $arguments[0] ) || !isset( $arguments[1] ) )
                {
                        echo "Usage: php artisan reversemigration <tablename> <migration_name>";
                        return;
                }

                // Grab the arguments from the command line
                $table_name = $arguments[0];
                $migration_name = $arguments[1];

                // Grab the columns for the specified table
                $columns = DBUtil::columns( $table_name, null, true );
                $columns = $this->codify_columns( $columns );

                // Grab the migration stub file so we can replace its contents.
                $migration_stub = File::get(path('app').'tasks/reversemigration/stub'.EXT);

                $class_name = Str::classify($migration_name);
                $migration_stub = str_replace('{{class}}', $class_name, $migration_stub);
                $migration_stub = str_replace('{{table_name}}', $table_name, $migration_stub);
                $migration_stub = str_replace('{{up_columns}}', $columns, $migration_stub);

                $file_name = date('Y_m_d_His').'_'.$migration_name.EXT;

                File::put( path('app').'migrations/'.$file_name, $migration_stub );

                echo "Migration ".$file_name." created from the ".$table_name." table.";
        }

        private function codify_columns( $columns )
        {
                $code = array('$table->increments("id");');
                $matches = array();

                foreach( $columns as $c )
                {
                        if( $c->name !== 'id' )
                        {
                                $line = "\t\t\t";
                                preg_match("/(\w+)\(?(\d+)?\)? ?(\w+)?/", $c->type, $matches);
                                if( isset( $matches[1] ) )
                                {
                                        $line .= '$table->'.$this->sql_types[$matches[1]].'("'.$c->name.'"';
                                }
                                if( isset( $matches[2] ) && $matches[1] != 'int' )
                                {
                                        $line .= ', '.$matches[2];
                                }
                                $line .= ')';
                                if( isset( $matches[3] ) && $matches[3] === 'unsigned' )
                                {
                                        $line .= '->unsigned()';
                                }
                                if( $c->null === "YES" )
                                {
                                        $line .= '->nullable()';
                                }
                                if( $c->default )
                                {
                                        $line .= '->default("'.$c->default.'")';
                                }
                                $code[] = $line.';';
                        }
                }

                return implode("\n", $code);
        }
}

stub.php

<?php

class {{class}} {

        /**
         * Make changes to the database.
         *
         * @return void
         */
        public function up()
        {
                Schema::create("{{table_name}}", function($table) {
                        {{up_columns}}
                });
        }

        /**
         * Revert the changes to the database.
         *
         * @return void
         */
        public function down()
        {
                Schema::drop("{{table_name}}");
        }

}