CODEWITHSUNDEEP
phpmultidimensional-arrayforeach
user2390439
user2390439

Reputation: 13

Echoing out everything in Multi-dimensional Array

Ok, so I'm trying to get the hang of multidimensional arrays, I know what they are and what they do.

In the example below I have created (probably not the most efficient way) a Cars array.

In this array I have two other variables that contain arrays, one for the model and one for the colour.

The result I'm looking for is to echo out all the models and colours for each car car.

For example

Bmw Red Saloon, Bmw Red Hatchback, Bmw Red Estate, Bmw Green Saloon, Bmw Green Hatchback etc etc.

So far in the following code I can get the make of the cars but then it echoes array array.

<?php 
$colours = array("red","green","blue");
$models = array("hatchback","saloon","estate");
$cars= array(
        array("Bmw",$colours,$models),
        array("Volvo",$colours,$models),
        array("VW",$colours,$models),
        array("Mercedes",$colours,$models)
    );
foreach ($cars as $innerArray){
    foreach ($innerArray as $value) {
        echo $value . '<br/>';
    }
}
?>

I know the foreach statement is wrong but that's where I'm stuck. If you could help me out or even better explain the logic behind it, that would be awesome!

Upvotes: 1

Views: 153

Answers (6)

Michael Duncan
Michael Duncan

Reputation: 117

I would not try to combine your array, that's what your loop is for. Keep it simple - colours array has colours, models has models, cars has cars. Then the variable names in your loops make more sense and it's easier to loop over. All you then have to do is loop over each one.

$colours = array("red","green","blue");
$models = array("hatchback","saloon","estate");
$cars = array("Bmw","Volvo","VW","Mercedes");

foreach($cars as $car)
{
    foreach($colours as $colour)
    {
        foreach($models as $model)
        {
           echo $car.' '.$colour.' '.$model.'<br>';
        }
    }
}

Upvotes: 0

Imane Fateh
Imane Fateh

Reputation: 2406

Try this :

$r = count($cars);

for ($row = 0; $row < $r; $row++)
{
    echo "<ul>";

    for ($col = 0; $col < 3; $col++)
    {
        echo "<li>".$cars[$row][$col]."</li>";
    }

    echo "</ul>";
}

Upvotes: 0

Jan Turoň
Jan Turoň

Reputation: 32912

The other asnwers should work for you well, just to be complete, here is the array_walk_recursive code:

function walkFunction($value,$key) {
  echo "$key: $value<br/>";
}

array_walk_recursive($cars,"walkFunction");

Upvotes: 1

Aris
Aris

Reputation: 5057

your $value sometimes is a string, and sometimes an array. Echo will not work for arrays. Try var_dump instead of echo.

 foreach ($cars as $innerArray){
foreach ($innerArray as $value)
    {var_dump($value);
 }
    }

Upvotes: 0

anubhava
anubhava

Reputation: 785098

Use any of the following available functions to dump out your top level array variable:

  1. print_r
  2. var_dump
  3. var_export

Upvotes: 3

Frildoren
Frildoren

Reputation: 243

In your array 'cars' there are strings and arrays, so when you echo the $value you are trying to echo an array 2/3 of the times.

If you just want to echo the stuff, I would suggest you to use

print_r()

Upvotes: 2

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