gistfile1.txt

$prefix = 'custom_';
$custom_meta_fields = array(
	array(
	    'label' => 'Multi-Day',
	    'desc'  => '',
	    'id'    => $prefix.'multiday',
	    'type'  => 'checkbox'
	),
	array(
	    'label' => 'Recurring',
	    'desc'  => '',
	    'id'    => $prefix.'recurring',
	    'type'  => 'checkbox'
	),
    array(
        'label'=> 'Free Admission? ',
        'desc'  => 'Check box if admission if free',
        'id'    => $prefix.'cost_free',
        'type'  => 'checkbox'
    )
    );
    
    
    
    
    
     // Begin the field table and loop
	    echo '<table class="form-table">';
	    foreach ($custom_meta_fields as $field) {
	        // get value of this field if it exists for this post
	        $values = get_post_meta($post->ID, $field['id'], true);
	        if (isset($values)){
	        $meta = $values; 
	        }else{
	        $values = null;
	        }
	        // begin a table row with
	        echo '<tr>
	                <th><label for="'.$field['id'].'">'.$field['label'].'</label></th>
	                <td>';
	                switch($field['type']) {
	                
	                  case 'checkbox':
						   echo '<input type="checkbox" name="'.$field['id'].'" class="'.$field['id'].'" id="'.$field['id'].'" ',$meta ? ' checked="checked"' : '','/>
						           <label for="'.$field['id'].'">'.$field['desc'].'</label>';
						   break;