pht\Vector::unshift
(PECL pht >= 0.0.1)
pht\Vector::unshift — Unshifts a value to the vector front
说明
public pht\Vector::unshift ( mixed$value
) : void
This method unshifts a value to the front of a vector (in linear time). The vector will automatically be resized if it is not large enough.
参数
value
The value to be pushed onto the beginning of the vector. This value will be serialised (since it may be passed around between threads).
返回值
No return value.
范例
Example #1 Unshifting a value to the front of a vector
<?php
use pht\Vector;
$vector = new Vector();
for ($i = 0; $i < 3; ++$i) {
$vector->unshift($i); // causes a quadratic runtime, beware
}
var_dump($vector);
以上例程会输出：
object(pht\Vector)#1 (3) {
[0]=>
int(2)
[1]=>
int(1)
[2]=>
int(0)
}
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/pht-vector.unshift.php