# Random\Engine\PcgOneseq128XslRr64::jump

(PHP 8 >= 8.2.0)

Random\Engine\PcgOneseq128XslRr64::jump — Efficiently move the engine ahead multiple steps

### Descripción

public Random\Engine\PcgOneseq128XslRr64::jump(int `$advance`): void

Moves the algorithm’s state ahead by the number of steps given by `advance`, as if Random\Engine\PcgOneseq128XslRr64::generate() was called that many times.

### Parámetros

`advance`

  The number of steps to move ahead; must be `0` or greater.

### Valores devueltos

No devuelve ningún valor.

### Errores/Excepciones

- If `advance` is less than `0`, a ValueError will be thrown.

### Ejemplos

Ejemplo #1 Random\Engine\PcgOneseq128XslRr64::jump() example

`<?php
$a = new \Random\Engine\PcgOneseq128XslRr64(0);
$b = clone $a;
for ($i = 0; $i < 1_000; $i++) {
$a->generate();
}
$b->jump(1_000);
echo "A: ", bin2hex($a->generate()), "\n";
echo "B: ", bin2hex($b->generate()), "\n";
?>`

El resultado del ejemplo sería:

    A: e6d0d5813913a424
    B: e6d0d5813913a424

Ejemplo #2 Randomizer methods may call the engine more than once

`<?php
$a = new \Random\Randomizer(new \Random\Engine\PcgOneseq128XslRr64(42659));
$b = new \Random\Randomizer(clone $a->engine);
$a->getInt(1, 1572864); // Performs two calls to generate().
$a->getInt(1, 1572864);
$b->engine->jump(2);
// Because the first call to ->getInt() called ->generate() twice
// the engines do not match up after performing a ->jump(2).
echo "A: ", bin2hex($a->engine->generate()), "\n";
echo "B: ", bin2hex($b->engine->generate()), "\n";
// Now the B engine matches the A engine.
echo "B: ", bin2hex($b->engine->generate()), "\n";
?>`

El resultado del ejemplo sería:

    A: 1e9f3107d56653d0
    B: a156c0086dd79d44
    B: 1e9f3107d56653d0