foreach($objectA as $k => $v) $objectB->$k = $v;

foreach($objectA as $k => $v) $objectB->$k = $v;

我知道使用通用对象[stdClass()]并将它们转换为数组来回答这个问题，但我认为排字器是一个很好的答案。但我觉得它可以进行一些功能增强，可能对其他人有用。

特点:

指定引用或克隆 指定第一个或最后一个条目优先 多个(两个以上)对象合并，语法类似于array_merge 方法链接:$obj->f1()->f2()->f3()… 动态复合材料:obj - >合并(…)/ *在这里工作* / obj - >合并(…)

代码:

class Compositor {

    protected $composite = array();
    protected $use_reference;
    protected $first_precedence;

    /**
     * __construct, Constructor
     *
     * Used to set options.
     *
     * @param bool $use_reference whether to use a reference (TRUE) or to copy the object (FALSE) [default]
     * @param bool $first_precedence whether the first entry takes precedence (TRUE) or last entry takes precedence (FALSE) [default]
     */
    public function __construct($use_reference = FALSE, $first_precedence = FALSE) {
        // Use a reference
        $this->use_reference = $use_reference === TRUE ? TRUE : FALSE;
        $this->first_precedence = $first_precedence === TRUE ? TRUE : FALSE;

    }

    /**
     * Merge, used to merge multiple objects stored in an array
     *
     * This is used to *start* the merge or to merge an array of objects.
     * It is not needed to start the merge, but visually is nice.
     *
     * @param object[]|object $objects array of objects to merge or a single object
     * @return object the instance to enable linking
     */

    public function & merge() {
        $objects = func_get_args();
        // Each object
        foreach($objects as &$object) $this->with($object);
        // Garbage collection
        unset($object);

        // Return $this instance
        return $this;
    }

    /**
     * With, used to merge a singluar object
     *
     * Used to add an object to the composition
     *
     * @param object $object an object to merge
     * @return object the instance to enable linking
     */
    public function & with(&$object) {
        // An object
        if(is_object($object)) {
            // Reference
            if($this->use_reference) {
                if($this->first_precedence) array_push($this->composite, $object);
                else array_unshift($this->composite, $object);
            }
            // Clone
            else {
                if($this->first_precedence) array_push($this->composite, clone $object);
                else array_unshift($this->composite, clone $object);
            }
        }

        // Return $this instance
        return $this;
    }

    /**
     * __get, retrieves the psudo merged object
     *
     * @param string $name name of the variable in the object
     * @return mixed returns a reference to the requested variable
     *
     */
    public function & __get($name) {
        $return = NULL;
        foreach($this->composite as &$object) {
            if(isset($object->$name)) {
                $return =& $object->$name;
                break;
            }
        }
        // Garbage collection
        unset($object);

        return $return;
    }
}

用法:

$obj = new Compositor(use_reference, first_precedence);
$obj->merge([object $object [, object $object [, object $...]]]);
$obj->with([object $object]);

例子:

$obj1 = new stdClass();
$obj1->a = 'obj1:a';
$obj1->b = 'obj1:b';
$obj1->c = 'obj1:c';

$obj2 = new stdClass();
$obj2->a = 'obj2:a';
$obj2->b = 'obj2:b';
$obj2->d = 'obj2:d';

$obj3 = new Compositor();
$obj3->merge($obj1, $obj2);
$obj1->c = '#obj1:c';
var_dump($obj3->a, $obj3->b, $obj3->c, $obj3->d);
// obj2:a, obj2:b, obj1:c, obj2:d
$obj1->c;

$obj3 = new Compositor(TRUE);
$obj3->merge($obj1)->with($obj2);
$obj1->c = '#obj1:c';
var_dump($obj3->a, $obj3->b, $obj3->c, $obj3->d);
// obj1:a, obj1:b, obj1:c, obj2:d
$obj1->c = 'obj1:c';

$obj3 = new Compositor(FALSE, TRUE);
$obj3->with($obj1)->with($obj2);
$obj1->c = '#obj1:c';
var_dump($obj3->a, $obj3->b, $obj3->c, $obj3->d);
// obj1:a, obj1:b, #obj1:c, obj2:d
$obj1->c = 'obj1:c';

为了保存合并对象的方法和属性，可以创建一个组合子类

在__construct上取任意数量的对象 使用__call访问任何方法 使用__get访问任何属性

class combinator{
function __construct(){       
    $this->melt =  array_reverse(func_get_args());
      // array_reverse is to replicate natural overide
}
public function __call($method,$args){
    forEach($this->melt as $o){
        if(method_exists($o, $method)){
            return call_user_func_array([$o,$method], $args);
            //return $o->$method($args);
            }
        }
    }
public function __get($prop){
        foreach($this->melt as $o){
          if(isset($o->$prop))return $o->$prop;
        }
        return 'undefined';
    } 
}

简单的用

class c1{
    public $pc1='pc1';
    function mc1($a,$b){echo __METHOD__." ".($a+$b);}
}
class c2{
    public $pc2='pc2';
    function mc2(){echo __CLASS__." ".__METHOD__;}
}

$comb=new combinator(new c1, new c2);

$comb->mc1(1,2);
$comb->non_existing_method();  //  silent
echo $comb->pc2;

让我们保持简单!

function copy_properties($from, $to, $fields = null) {
    // copies properties/elements (overwrites duplicates)
    // can take arrays or objects 
    // if fields is set (an array), will only copy keys listed in that array
    // returns $to with the added/replaced properties/keys
    $from_array = is_array($from) ? $from : get_object_vars($from);
    foreach($from_array as $key => $val) {
        if(!is_array($fields) or in_array($key, $fields)) {
            if(is_object($to)) {
                $to->$key = $val;
            } else {
                $to[$key] = $val;
            }
        }
    }
    return($to);
}

如果这不能回答你的问题，它肯定会帮助你找到答案。 以上代码归我所有:)

我会把第二个对象链接到第一个对象的属性中。如果第二个对象是函数或方法的结果，请使用引用。例:

//Not the result of a method
$obj1->extra = new Class2();

//The result of a method, for instance a factory class
$obj1->extra =& Factory::getInstance('Class2');