ArrayObject::__construct

Description

ArrayObject ArrayObject::__construct ( mixed input )

This constructs a new array object. The input parameter accepts an array or another ArrayObject.

例子 1. ArrayObject::__construct() example
<?php $array = array('1' => 'one', '2' => 'two', '3' => 'three'); $arrayobject = new ArrayObject($array); var_dump($arrayobject); ?>
上例将输出：
object(ArrayObject)#1 (3) { [1]=> string(3) "one" [2]=> string(3) "two" [3]=> string(5) "three" }

add a note User Contributed Notes

Grigori Kochanov
15-Jul-2006 06:51


As Marcus explained, the flag ArrayObject::SPL_ARRAY_AS_PROPS means the array element may be used as a property if there is no conflict with visible properties.



If there are visible properties in the class, the array element will not overwrite it's value.



<?php

class Rules extends ArrayObject {

    public $len = 1;

    function __construct($array){

        parent::__construct($array,ArrayObject::ARRAY_AS_PROPS);

        $this['len'] = 2;

    }

}

$x = new Rules(array(1,2));

echo $x->len;

?>

Result: 1



<?php

class Rules extends ArrayObject {

    private $len = 1;

    function __construct($array){

        parent::__construct($array,ArrayObject::ARRAY_AS_PROPS);

        $this['len'] = 2;

    }

}

$x = new Rules(array(1,2));

echo $x->len;

?>

Result: 2

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