(PECL ds >= 1.0.0)
Ds\Vector::capacity — Returns the current capacity
此函数没有参数。
The current capacity.
示例 #1 Ds\Vector::capacity() example
<?php
$vector = new \Ds\Vector();
var_dump($vector->capacity());
$vector->push(...range(1, 50));
var_dump($vector->capacity());
$vector[] = "a";
var_dump($vector->capacity());
?>以上示例的输出类似于：
int(10) int(50) int(75)