Resizes a vector - PHP中文帮助手册

说明

public pht\Vector::resize ( int $size [, mixed $value = 0 ] ) : void

Resizes the vector. If it is enlarged, then the value parameter will be used to fill in the new slots. If it is made smaller, then the end values will be truncated.

参数

size: The new size of the vector.
value: The value to initialise the empty vector slots to (only used if the vector is enlarged).

返回值

No return value.

范例

Example #1 Resizing a vector


<?php

use pht\Vector;

$vector = new Vector(1);
var_dump($vector);
$vector->resize(2, 1);
var_dump($vector);
$vector->resize(1, 2); // unused second arg
var_dump($vector);

以上例程会输出：

object(pht\Vector)#1 (1) {
  [0]=>
  int(0)
}
object(pht\Vector)#1 (2) {
  [0]=>
  int(0)
  [1]=>
  int(1)
}
object(pht\Vector)#1 (1) {
  [0]=>
  int(0)
}