ArrayObject::getArrayCopy

(PHP 5 >= 5.0.0)

ArrayObject::getArrayCopy — Creates a copy of the ArrayObject.

说明

public array ArrayObject::getArrayCopy ( void )

Exports the ArrayObject to an array.

参数

此函数没有参数。

返回值

Returns a copy of the array. When the ArrayObject refers to an object an array of the public properties of that object will be returned.

范例

Example #1 ArrayObject::getArrayCopy() example


<?php
// Array of available fruits
$fruits = array("lemons" => 1, "oranges" => 4, "bananas" => 5, "apples" => 10);

$fruitsArrayObject = new ArrayObject($fruits);
$fruitsArrayObject['pears'] = 4;

// create a copy of the array
$copy = $fruitsArrayObject->getArrayCopy();
print_r($copy);

?>

以上例程会输出：

Array
(
    [lemons] => 1
    [oranges] => 4
    [bananas] => 5
    [apples] => 10
    [pears] => 4
)

PHP手册 - N: Creates a copy of the ArrayObject.

用户评论:

Ivo von Putzer (05-Dec-2011 01:06)

If you did something like this to make your constructor multidimensional capable you will have some trouble using getArrayCopy to get a plain array straight out of the method: <?php public function __construct( $array = array(), $flags = 2 ) { // let’s give the objects the right and not the inherited name $class = get_class($this); foreach($array as $offset => $value) $this->offsetSet($offset, is_array($value) ? new $class($value) : $value); $this->setFlags($flags); } ?> That’s the way I solved it: <?php public function getArray($recursion = false) { // just in case the object might be multidimensional if ( $this === true) return $this->getArrayCopy(); return array_map( function($item){ return is_object($item) ? $item->getArray(true) : $item; }, $this->getArrayCopy() ); } ?> Hope this was useful!