(PECL ds >= 1.0.0)
Ds\Map::allocate — Allocates enough memory for a required capacity
$capacity): voidAllocates enough memory for a required capacity.
capacityThe number of values for which capacity should be allocated.
注意:
Capacity will stay the same if this value is less than or equal to the current capacity.
注意:
Capacity will always be rounded up to the nearest power of 2.
沒(méi)有返回值。
示例 #1 Ds\Map::allocate() example
<?php
$map = new \Ds\Map();
var_dump($map->capacity());
$map->allocate(100);
var_dump($map->capacity());
?>
以上例程的輸出類(lèi)似于：
int(16) int(128)