Laracon EU Online 2021

pht\Vector::unshift

(PECL pht >= 0.0.1)

pht\Vector::unshiftUnshifts a value to the vector front

Descrição

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.

Parâmetros

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).

Valor Retornado

No return value.

Exemplos

Exemplo #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);

O exemplo acima irá imprimir:

object(pht\Vector)#1 (3) {
  [0]=>
  int(2)
  [1]=>
  int(1)
  [2]=>
  int(0)
}

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top