PHP | Ds\Stack allocate()函数
Ds\Stack::allocate()函数是PHP中的一个内置函数,用于为所需容量分配内存。此函数为 Stack 类实例的给定容量分配足够的内存。
句法:
void Ds\Stack::allocate( $capacity )
参数:此函数接受单个参数$capacity ,它是一个整数值,表示需要为其分配容量的值的数量。
返回值:此函数不返回任何值。
下面的程序说明了PHP中的 Ds\Stack::allocate()函数:
方案一:
php
capacity());
echo("Allocated space is: ");
// Use allocate() function to
// allocate capacity
$stack->allocate(50);
// Display the allocated stack
// capacity
var_dump($stack->capacity());
?>
php
capacity());
echo("Allocated space is: ");
// Use allocate() function to
// allocate capacity
$stack->allocate(5);
// Display the stack capacity
var_dump($stack->capacity());
echo("Allocated space is: ");
// Use allocate() function to
// allocate capacity
$stack->allocate(120);
// Display the stack capacity
var_dump($stack->capacity());
?>
输出:
Allocated Space is: int(8)
Allocated space is: int(50)
方案二:
PHP
capacity());
echo("Allocated space is: ");
// Use allocate() function to
// allocate capacity
$stack->allocate(5);
// Display the stack capacity
var_dump($stack->capacity());
echo("Allocated space is: ");
// Use allocate() function to
// allocate capacity
$stack->allocate(120);
// Display the stack capacity
var_dump($stack->capacity());
?>
输出:
Allocated Space is: int(8)
Allocated space is: int(8)
Allocated space is: int(120)
参考: https://www. PHP.net/manual/en/ds-stack.allocate。 PHP