ArrayIterator::offsetSet

(PHP 5, PHP 7, PHP 8)

ArrayIterator::offsetSet — Set value for an offset

说明

public ArrayIterator::offsetSet(mixed $key, mixed $value): void

Sets a value for a given offset.

警告

本函数还未编写文档，仅有参数列表。

参数

key

The index to set for.

value

The new value to store at the index.

返回值

没有返回值。

参见

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User Contributed Notes 1 note

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shiranai7 at NOSPAM dot hotmail dot NOSPAM dot com
10 years ago
The $index argument seems to be NULL for append operations, e.g.:

<?php

// example extension class
class Test extends ArrayIterator
{
    public function offsetSet($index, $newval)
    {
        echo 'Test::offsetSet('.var_export($index, true).', '.var_export($newval, true).")\n";
    }
}

// test
$i = new Test;
$i[] = 'append a value';

?>

The result is:

Test::offsetSet(NULL, 'append a value')
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备份地址：http://www.lvesu.com/blog/php/arrayiterator.offsetset.php