Display a number from array in PHP

Question

Hello I would like to have a code that displays randomly from an array a number and displays it. For example this code

<?php
$firstquarter = array(1 => 'January', 'February', 'March');
print_r($firstquarter);
?>

will return

Array
(
    [1] => January
    [2] => February
    [3] => March
)

Instead of this, I would like to display on

Are you searching for something like array_rand? Your questions isn't that clear... — miku
– miku, Commented Jan 19, 2011 at 0:44
Noy your question is very unclear, what's defines the difference from 15:00 and 18:00 ? — RobertPitt
– RobertPitt, Commented Jan 19, 2011 at 0:52
Actually, I'm not changing my answer now, you should be creating a new post for this, its bad practise to totally change the whole question. — RobertPitt
– RobertPitt, Commented Jan 19, 2011 at 0:53
Rolled the revision back - you shouldn't change the question completely (as @RobertPitt mentioned). Start a new one. — James B
– James B, Commented Jan 19, 2011 at 0:56

RobertPitt · Accepted Answer · 2011-01-19 00:46:10Z

3

A simple function called array_rand

example:

$selection = array_rand($my_array);

Documentation

answered Jan 19, 2011 at 0:46

RobertPitt

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Comments

Simon · Accepted Answer · 2011-01-19 00:43:06Z

2

Use rand()

$iIndex = rand(1, count($firstquarter));
echo $firstquarter[$iIndex];

This assumes you have an one indexed array with consecutive keys.

answered Jan 19, 2011 at 0:43

Simon

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3 Comments

JohnQ Over a year ago

Oh great for this. I found this code <?php echo rand(5, 15); ?> However I want a different range depends on time. For example if the server time is 15:00 to 18:00 it will have a different range than 18:01 to 21:00 and so on. UPDATED ENTIRE QUESTION

Simon Over a year ago

@RobertPitt Ha. never come across that function. Submit your own answer and I'll give you an up vote.

JohnQ Over a year ago

Hehe, by "so on" I mean you know 21:01 to 24:01... I need an example to know how it is working

Alix Axel · Accepted Answer · 2011-01-19 01:01:24Z

2

You need array_rand():

echo $firstquarter[array_rand($firstquarter)];

I'm not sure if this is what you want but here it goes:

echo mt_rand(intval(date('H') / 3) * 4, intval(date('H') / 3) * 5);

edited Jan 19, 2011 at 1:01

answered Jan 19, 2011 at 0:47

Alix Axel

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2 Comments

RobertPitt Over a year ago

The question has been rolled back as the OP changed the whole context of the question, +1 for posting anyway.

Alix Axel Over a year ago

@RobertPitt: Yup, I see. I got somewhat confused with the rollback there.

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