phinx-add-timestamps.php

<?php
    public function change()                                                                                                
    {                                                                                                                       
        $table = $this->table('photographers');                                                                             
        $table->addColumn('created-at', 'timestamp', [
                    'default' => 'CURRENT_TIMESTAMP',
                    'after' => 'portfolio-url'])        
                ->addColumn('updated-at', 'timestamp', [                                                                    
                    'update' => 'CURRENT_TIMESTAMP',                                                                        
                    'default' => 'CURRENT_TIMESTAMP',                                                                       
                    'after' => 'created-at' ])                                                                              
                ->update();                                                                                                 
    }