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Reputation: 2473

Populate a previously created associative array, with values

Trying to populate a previously created associative array, with values where values are randomly created. I cannot spot what I am doing wrong.

<?php

$value_min = 1;
$value_max = 3;

$my_array = array (
    "dice_1" => null,
    "dice_2" => null,
    "dice_3" => null
);

foreach(range($value_min, $value_max) as $key => $value) {
    $my_array[] = random_int($value_min, $value_max);
};

print_r($my_array);

Outcome:

Array
(
    [dice_1] => 
    [dice_2] => 
    [dice_3] => 
    [0] => 2
    [1] => 2
    [2] => 3
)

Expected outcome 

(
    [dice_1] => 2  
    [dice_2] => 2
    [dice_3] => 3
)

Note: value can of course diff since they are created with random numbers

Upvotes: 0

Views: 67

Answers (3)

Rahul
Rahul

Reputation: 18557

Here you can do something like this,

$t = range($value_min, $value_max);
shuffle($t);
$temp = array_combine(array_keys($my_array), $t);

I am fetching keys of $my_array and shuffled range array.
Then combining them as keys as first argument and shuffled range array as second argument.

Demo.

EDIT

In that case you can traverse my_array,

foreach($my_array as $key => &$value) { // & to save data directly to its address
    $value = random_int($value_min, $value_max);
};

Demo.

Upvotes: 1

Ghanshyam Nakiya
Ghanshyam Nakiya

Reputation: 1712

$value_min = 1;
$value_max = 3;

$my_array = array (
    "dice_1" => null,
    "dice_2" => null,
    "dice_3" => null
);

$i=1;
foreach(range($value_min, $value_max) as $key => $value) {
    $my_array["dice_".$i] = random_int($value_min, $value_max);
    $i++;
};

print_r($my_array);

DEMO

Upvotes: 0

Alaa Morad
Alaa Morad

Reputation: 455

just change the foreach

foreach($my_array as $key => $value) {
    $my_array[$key] = random_int($value_min, $value_max);
};

Upvotes: 1

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