Re: duda numeros aleatorios php

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#3275

From: Cristian Gutierrez
Date: Thu, 31 Mar 2005 21:33

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Hoy en la tarde, Rick oj dijo:
> se que es un poco basico pero no se cual es mi error estoy generando numeros
> aleatorios y guardandolos en un arreglo
>
> srand(time());
> $numeros=array_fill(0,21,rand(1,100));
>
> con esta funcion me guarda el mismo numero siempre
>
> en cambio si lo hago en un ciclo
>
> $numeros = array ();
> srand(time());
> for ($i = 0; $i < 21; $i++)
> $numeros[$i] = rand (1, 100);
>
> me entrega valores diferentes, estoy utilizando mal la funcion array_fill ?

Exacto. array_fill no va a llamar a rand(1,100) 20 veces, sino que el
interprete de PHP llama a rand(1,100), obtiene un valor, y ese es el que
se lleva array_fill. Recuerda se evalua "de adentro hacia afuera".

-- 
Cristian Gutierrez			http://www.dcc.uchile.cl/~crgutier
crgutier[@]dcc.uchile.cl                        Jabber:crgutier@jabber.org

The opposite of a correct statement is a false statement.  But the
opposite of a profound truth may well be another profound truth.
                                       -Niels Bohr

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From: Cristian Gutierrez <crgutier@dcc.uchile.cl>
Newsgroups: chile.comp.programacion
Subject: Re: duda numeros aleatorios php
Date: Thu, 31 Mar 2005 17:33:06 -0400
Organization: Centro de Computacion - U. de Chile
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