Bummer! You must be logged in to access this page.

Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

PHP

Posted by Joe Li
Joe Li
8,104 Points

An Array inside An Array inside An array.

Hey Guys,

I'm trying to do a foreach loop inside of a foreach loop, therefore I need a multi-dimension array, 4 levels deep array.

$projects = array();

        $projects[1] = array(
            "name" => "Project 1",
            "location" => "Location One",
            "link" => "project.php",
            "main-image" => "img/projects/thumbs/branding1.jpg",
            "headImage" => "bg_project1",
            "category" => "Kitchen",
            "description" => " A nice kitchen with lot of lighting.",
            "images" => array(
                                "img/projects/thumbs/branding1.jpg", 
                                "img/projects/thumbs/web1.jpg", 
                                "img/projects/thumbs/web2.jpg")

                  );

I know how I would access the images for a foreach loop int he example above.

But what if I wanted to do an array of the images, e.g. give the image a name, or location etc. How do I do an array of these images?

"images" => array(
                                "img/projects/thumbs/branding1.jpg", 
                                "img/projects/thumbs/web1.jpg", 
                                "img/projects/thumbs/web2.jpg")

How would i do this? and how would I call it?

Thanks,

Joe

3 Answers

James Warner
James Warner
2,322 Points
James Warner
James Warner
2,322 Points

Hey Joe,

You nearly had it! here's how I would add image information and loop through it nicely:

<?php

$projects = array();

// Add a project
$projects[] = array(
    'name' => 'Project 1',
    'description' => 'Example Description',
    'images' => array(
        array(
            'url' => 'img/projects/thumbs/branding1.jpg',
            'name' => 'Branding Image'
        ),
        array(
            'url' => 'img/projects/thumbs/web1.jpg',
            'name' => 'Web Image 1'
        ),
        array(
            'url' => 'img/projects/thumbs/web2.jpg',
            'name' => 'Web Image 2'
        )
    )
);

// Now let's loop through the projects
foreach ($projects as $project) {

    // We can access the project values here
    echo $project['name'];
    echo $project['description'];

    // Time for the images
    foreach ($project['images'] as $image) {

        // We can access the image values here
        echo $image['url'];
        echo $image['name'];

    }
}
Joe Li
Joe Li
8,104 Points

Thanks James you nailed it!

Paul Yabsley
Paul Yabsley
46,713 Points
Paul Yabsley
Paul Yabsley
46,713 Points

It's like you've done but you would need a key for each image:

$projects[1] = array(
    "name" => "Project 1",
    "location" => "Location One",
    "link" => "project.php",
    "main-image" => "img/projects/thumbs/branding1.jpg",
    "headImage" => "bg_project1",
    "category" => "Kitchen",
    "description" => " A nice kitchen with lot of lighting.",
    "images" => array(
        "image1" => array(
                "img/projects/thumbs/branding.jpg",
                "Location",
                "Name"
            ),
        "image2" => array(
                "img/projects/thumbs/web1.jpg",
                "Location of image 2",
                "Name"
            ),
        "image3" => array(
                "img/projects/thumbs/web2.jpg",
                "Location",
                "Name"
            )
        )
    );

// They can be accessed like this
$foo = $projects[1]["images"]["image2"][1];

echo $foo;
Navid Mirzaie Milani
Navid Mirzaie Milani
6,274 Points
Navid Mirzaie Milani
Navid Mirzaie Milani
6,274 Points

soo what i understand of your post you want to make each image an array like

$img1 = array(

name => "bla.jpg", propertie2 => "bla2", propertie3 => 'bla3'

);

like that? or do you mean something else, if you more specify your question i can help you better.