PHP 对象、数组间的转换

/**

 * PHP 对象、数组间的转换

 *

 * @author flyer0126

 * @since 2012/05/03

 **/

// 1. 利用(array)和(object)，简单处理

$objTemp = (object)array();

$objTemp->a = 1;

$objTemp->b = 2;

$objTemp->c = 3;

$arrTemp = (array)$objTemp;

print_r($objTemp);

print_r($arrTemp);

/**

stdClass Object

(

    [a] => 1

    [b] => 2

    [c] => 3

)

Array

(

    [a] => 1

    [b] => 2

    [c] => 3

)

**/

// PS:简单的(array)和(object)只能处理单层的数据，对于多层的数组和对象转换则无能为力。

// 2. 多维数组与对象间的转换处理

/**

 * 将对象转换为多维数组

 *

 **/

function objectToArray($d) {

if (is_object($d)) {

// Gets the properties of the given object

// with get_object_vars function

$d = get_object_vars($d);

}

if (is_array($d)) {

/*

* Return array converted to object

* Using __FUNCTION__ (Magic constant)

* for recursive call

*/

return array_map(__FUNCTION__, $d);

}

else {

// Return array

return $d;

}

}

 

/**

 * 将多维数组转换为对象

 *

 **/

function arrayToObject($d) {

if (is_array($d)) {

/*

* Return array converted to object

* Using __FUNCTION__ (Magic constant)

* for recursive call

*/

return (object) array_map(__FUNCTION__, $d);

}

else {

// Return object

return $d;

}

}

// Useage:

$init = new stdClass;

$init->foo = "Test data";

$init->bar = new stdClass;

$init->bar->baaz = "Testing";

$init->bar->fooz = new stdClass;

$init->bar->fooz->baz = "Testing again";

$init->foox = "Just test";

// Convert array to object and then object back to array

$array = objectToArray($init);

$object = arrayToObject($array);

// Print objects and array

print_r($init);

print_r($array);

print_r($object);

/**

stdClass Object

(

    [foo] => Test data

    [bar] => stdClass Object

        (

            [baaz] => Testing

            [fooz] => stdClass Object

                (

                    [baz] => Testing again

                )

        )

    [foox] => Just test

)

Array

(

    [foo] => Test data

    [bar] => Array

        (

            [baaz] => Testing

            [fooz] => Array

                (

                    [baz] => Testing again

                )

        )

    [foox] => Just test

)

stdClass Object

(

    [foo] => Test data

    [bar] => stdClass Object

        (

            [baaz] => Testing

            [fooz] => stdClass Object

                (

                    [baz] => Testing again

                )

        )

    [foox] => Just test

)

**/