(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplFixedArray::setSize — Change the size of an array
Change the size of an array to the new size of size. If
size is less than the current array size, any values after the new size
will be discarded. If size is greater than the current array size, the
array will be padded with null values.
总是返回 true。
Throws ValueError when
size is less than zero.
| 版本 | 说明 |
|---|---|
| 8.4.0 | SplFixedArray::setSize() now has a tentative return of true. |
示例 #1 SplFixedArray::setSize() example
<?php
$array = new SplFixedArray(5);
echo $array->getSize()."\n";
$array->setSize(10);
echo $array->getSize()."\n";
?>以上示例会输出：
5 10