Question

我是.NET程序员，但在PHP中是全新的。我和它斗争了几个小时。

我需要简单地从接口到数据库进行数据传输。我有这样的事情：

    $default = new stdClass();

            // default values - all of them should be set to default value
            // some of them will be overwritten later, but only one of them


    $default->{'val-string'} = ''; // default values start
    $default->{'val-int'} = 0;
    $default->{'val-float'} = 0;
    $default->{'val-image'} = ' ';
    $default->{'val-datetime'} = 0;
    $default->{'val-boolean'} = false; // default values end


    $container = array(); 


    $row = clone $default;
    $row->{'field_id'} = 1;
    $row->{'field_name'} = $nameoffield1;
    $row->{'val-string'} = 'Diffrent types are filled for diffrent rows';
    $container[] = $row;

    $row = clone $default;
    $row->{'field_id'} = 2;
    $row->{'field_name'} = $nameoffield2;
    $row->{'val-int'} = $valueoffield2;
    $container[] = $row;

    $row = clone $default;
    $row->{'field_id'} = 3;
    $row->{'field_name'} = $nameoffield3;
    $row->{'val-datetime'} = current_time();
    $container[] = $row;

    // there
    // is
    // a lot
    // of these 
            //rows

$result = $database->insertContainer($db_session, $container);

最后需要类似“伪代码.NET与php混合”

list_of_rows.AddItem(makeRow($field_id1, $name1, (int)$dataforint)));
list_of_rows.AddItem(makeRow($field_id2, $name2, (string)$dataforstring));
list_of_rows.AddItem(makeRow($field_id3, $name3, (date)$datafordate));
list_of_rows.AddItem(makeRow($field_id4, $name4, (boolean)$dataforboolean));

$result = $database->insertContainer($db_session, list_of_rows);

如果在PHP中无法实现这样的超载（或非常复杂） - 如果有人给我提供比顶部的代码更好的解决方案，我会很高兴。

Answer 1

这是一种可行的方法。您还可以使用__call方法来实现此目的。这只是一个简单的例子。要么是这个，要么你可以使用类似推进器的ORM来实现类似的东西。这实际上取决于任务是什么。

class Row_Builder {

    protected $default = array();

    public function __construct() {
    $this->default['field_id'] = null;
    $this->default['field_name'] = null;
    $this->default['val-string'] = null;
    $this->default['val-int'] = null;
    $this->default['val-float'] = null;
    $this->default['val-image'] = null;
    $this->default['val-datetime'] = null;
    $this->default['val-boolean'] = false;
    return;
  }  

  public function setValues() {
    // we only need the fist argument in this case.
    $params= func_get_arg(0);
    if(isset($params)) {
      foreach($params as $key => $value)  {
        if(array_key_exists($key,$this->default)) {
          $this->default[$key] = $value;
        }

      }
    }

  }

  public function __get($key) {
    if(array_key_exists($key, $this->default)) {
      return $this->default[$key];
    } 
  }
}

$row = new Row_Builder;
$row->setValues(array('field_id' => 1, 'field_name' => 'some value', 'val-string' => 'here is a str value'));

print $row->field_name;

PHP - 简化代码 - 类似于MVC部分

1 个答案: