SplFixedArray::setSize
(PHP 5 >= 5.3.0)
SplFixedArray::setSize — Change the size of an array
說明
public int SplFixedArray::setSize
( int
$size
)
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.
參數
-
size -
The new array size. This should be a value between 0 and
PHP_INT_MAX.
回傳值
無回傳值。
錯誤/例外
Throws InvalidArgumentException when size is less than zero.
Raises E_WARNING when size cannot be used as a number.
範例
Example #1 SplFixedArray::setSize() example
<?php
$array = new SplFixedArray(5);
echo $array->getSize()."\n";
$array->setSize(10);
echo $array->getSize()."\n";
?>
上例將輸出：
5 10
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