How to create an array using array_fill function in PHP?

Question

I want to create an array like below

array(2) {
  [0]=>
  array(2) {
    [0]=>
    int(1)
    [1]=>
    int(0)
  }
  [1]=>
  array(2) {
    [0]=>
    int(2)
    [1]=>
    int(0)
  }
}

Here first element of the inner array will be incremental and second element will always be 0. The outer array length should be 30. I spent a lot of of time on it but couldn't solve it by my one. Can any one of you help me ? Thanks

no not an assignment.I am not a college student. I am reading php functions and tried to achieve this through array_fill function. Just of curiosity @kevinabelita — ehp
– ehp, Commented Jul 7, 2014 at 7:18

billyonecan · Accepted Answer · 2014-07-07 07:15:27Z

4

You could do it using array_map() and range():

$o = array_map(function($a) { return array($a, 0); }, range(1, 30));

Demo

answered Jul 7, 2014 at 7:15

billyonecan

20.3k9 gold badges44 silver badges66 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Mark Baker · Accepted Answer · 2014-07-07 07:16:43Z

1

The array_fill() function creates an array where all elements are identical. You're asking for an array where the elements aren't all identical, so it's not something you can create simply by using array_fill()....

$array = array_fill(0, 2, array_fill(0, 2, 0)); 
array_walk($array, function(&$value, $key) { $value[0] = $key+1; });

answered Jul 7, 2014 at 7:16

Mark Baker

213k34 gold badges354 silver badges390 bronze badges

Comments

Ryad · Accepted Answer · 2014-07-07 07:18:17Z

1

Maybe you want something like this?

<?php
function initArray() {
    $array = array();
    for ($i = 1; $i <= 30; $i++) {
        $array[] = array($i, 0);
    }

    return $array;
}

// now call the initArray() function somewhere you need it
$myFancyArray = initArray();
?>

answered Jul 7, 2014 at 7:18

Ryad

312 bronze badges

Collectives™ on Stack Overflow

How to create an array using array_fill function in PHP?

3 Answers 3

Demo

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related