SplFixedArray::setSize
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplFixedArray::setSize — Change the size of an array
说明
   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.
  
返回值
   总是返回 true。
  
错误/异常
   Throws ValueError when
   size is less than zero.
  
更新日志
| 版本 | 说明 | 
|---|---|
| 8.4.0 | SplFixedArray::setSize() now has a tentative return of true. | 
示例
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
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