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
(
=> 1
=> 2
=> 3
)
Array
(
=> 1
=> 2
=> 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
(
=> Test data
=> stdClass Object
(
=> Testing
=> stdClass Object
(
=> Testing again
)
)
=> Just test
)
Array
(
=> Test data
=> Array
(
=> Testing
=> Array
(
=> Testing again
)
)
=> Just test
)
stdClass Object
(
=> Test data
=> stdClass Object
(
=> Testing
=> stdClass Object
(
=> Testing again
)
)
=> Just test
)
**/
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