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PHP

Posted by shawn stokes
shawn stokes
5,651 Points

looping through an array?

ok so here is my array

<?php

    $category = array();
    $category[] = array(
        "id" => "100",
        "name" => "category name",
        "img" => "img/name_100.jpg",
        "products" => array(
                "product01" => array(
                    "rel_cat_id" => "100",
                    "product_id" => "110",
                    "product_name" => "p_name",
                    "product_img" => "img/product/name110.jpg",
                    ),
                "product02" => array(
                    "rel_cat_id" => "100",
                    "product_id" => "120",
                    "product_name" => "p_name",
                    "product_img" => "img/product/nam120.jpg",
                        "alt_product" => array(
                            "id" => "122",
                            "rel_product_id" => "120",
                            "rel_cat_id" => "100",
                            "name" => "rp_name",
                            "img" => "img/product/name122.jpg",
                        )
                    ),
                "product03" => array(
                    "rel_cat_id" => "100",
                    "product_id" => "130",
                    "product_name" => "p_name",
                    "product_img" => "img/product/name130.jpg",
                )
        )
    );
    $category[] = array(
        "id" => "200",
        "name" => "category name",
        "img" => "img/name_02.jpg",
        "products" => array(
                "product01" => array(
                    "rel_cat_id" => "200",
                    "product_id" => "210",
                    "product_name" => "p_name",
                    "product_img" => "img/product/name210.jpg",
                    ),
                "product02" => array(
                    "rel_cat_id" => "200",
                    "product_id" => "220",
                    "product_name" => "p_name",
                    "product_img" => "img/product/name220.jpg",
                        "alt_product" => array(
                            "id" => "222",
                            "rel_product_id" => "220",
                            "rel_cat_id" => "200",
                            "name" => "rp_name",
                            "img" => "img/product/name222.jpg",
                        )
                    ),
        )
    );
    $category[] = array(
        "id" => "300",
        "name" => "category name",
        "img" => "img/name_300.jpg",
        "products" => array(
            "product01" => array(
                "rel_cat_id" => "300",
                "product_id" => "310",
                "product_name" => "p_name",
                "product_img" => "img/product/name310.jpg",
                )
        )
    );


?>

i get foreach loops i can make it for some of what i want to get in the category array. now lets say i also want to get names and imgs from all the products and alt_products arrays in this foreach loop. can this be done?

3 Answers

Curtis Schrum
Curtis Schrum
10,174 Points

I would create a class but thats neither here nor there.

Why not reorganize your data a bit? I do not know if this is supposed to be dynamic data or not, if it is you would likely need a nested foreach (mentioned above) for the products array. However, given the data above I did a little reorganization of it below:

<?php
$categories = array(
        0 => array(
        "id" => "100",
        "name" => "category name",
        "img" => "img/name_100.jpg",
        "products" => array(
                "product01" => array(
                    "rel_cat_id" => "100",
                    "product_id" => "110",
                    "product_name" => "p_name",
                    "product_img" => "img/product/name110.jpg",
                    ),
                "product02" => array(
                    "rel_cat_id" => "100",
                    "product_id" => "120",
                    "product_name" => "p_name",
                    "product_img" => "img/product/nam120.jpg",
                        "alt_product" => array(
                            "id" => "122",
                            "rel_product_id" => "120",
                            "rel_cat_id" => "100",
                            "name" => "rp_name",
                            "img" => "img/product/name122.jpg",
                        )
                    ),
                "product03" => array(
                    "rel_cat_id" => "100",
                    "product_id" => "130",
                    "product_name" => "p_name",
                    "product_img" => "img/product/name130.jpg",
                )
        ),
        ),
        );




    foreach($categories as $category) {
        echo 'id: '. $category['id'] . '<br/>';
        echo 'name: '. $category['name']. '<br/>';
        echo 'img: '. $category['img']. '<br/>';
        echo 'rel_cat_id: ' . $category['products']['product01']['rel_cat_id']. '<br/>';
        echo 'product_id: '.$category['products']['product01']['product_id']. '<br/>';
        echo 'product_name: '. $category['products']['product01']['product_name']. '<br/>';
        echo 'product_img: '. $category['products']['product01']['product_img'];
    }
?>
shawn stokes
shawn stokes
5,651 Points

ah never though about setting it up that way thanks.

Curtis Schrum
Curtis Schrum
10,174 Points

I should note I wrote this reply to the original problem I had not seen the additional information yet

John MacDonald
John MacDonald
8,593 Points
John MacDonald
John MacDonald
8,593 Points

Try nesting in 2 foreach loops

shawn stokes
shawn stokes
5,651 Points

so like

<?php

foreach($category as $title){
echo $title["name"];
foreach ($products as $product){
echo $product["name"];
foreach ($alt_product and $alternate){
echo $alternate["name"];
}
}
}
?>

wouldn't i need to check so see if they are set some how?

shawn stokes
shawn stokes
5,651 Points
shawn stokes
shawn stokes
5,651 Points

ok so this is were i am at now i am getting a Illegal string offset 'alt_name'

<?php


    $category = array();
    $category[] = array(
        "id" => "100",
        "name" => "category name 100",
        "img" => "img/name_100.jpg",
        "products" => array(
                "product01" => array(
                    "rel_cat_id" => "100",
                    "product_id" => "110",
                    "product_name" => "p_name 110",
                    "product_img" => "img/product/name110.jpg",
                    ),
                "product02" => array(
                    "rel_cat_id" => "100",
                    "product_id" => "120",
                    "product_name" => "p_name 120",
                    "product_img" => "img/product/nam120.jpg",
                    "alt_product" => array(
                            "id" => "122",
                            "rel_product_id" => "120",
                            "rel_cat_id" => "100",
                            "alt_name" => "rp_name 122",
                            "img" => "img/product/name122.jpg",
                        )
                    ),
                "product03" => array(
                    "rel_cat_id" => "100",
                    "product_id" => "130",
                    "product_name" => "p_name 130",
                    "product_img" => "img/product/name130.jpg",
                )
        )
    );
    $category[] = array(
        "id" => "200",
        "name" => "category name 200",
        "img" => "img/name_02.jpg",
        "products" => array(
                "product01" => array(
                    "rel_cat_id" => "200",
                    "product_id" => "210",
                    "product_name" => "p_name 210",
                    "product_img" => "img/product/name210.jpg",
                    ),
                "product02" => array(
                    "rel_cat_id" => "200",
                    "product_id" => "220",
                    "product_name" => "p_name 220",
                    "product_img" => "img/product/name220.jpg",
                        "alt_product" => array(
                            "id" => "222",
                            "rel_product_id" => "220",
                            "rel_cat_id" => "200",
                            "alt_name" => "rp_name 222",
                            "img" => "img/product/name222.jpg",
                        )
                    ),
        )
    );
    $category[] = array(
        "id" => "300",
        "name" => "category name 300",
        "img" => "img/name_300.jpg",
        "products" => array(
            "product01" => array(
                "rel_cat_id" => "300",
                "product_id" => "310",
                "product_name" => "p_name 310",
                "product_img" => "img/product/name310.jpg",
                )
        )
    );






?>

and this is my loop it works to products and when i var_dump $alt the name i want is there but when i try to echo it i get the error.

        <?php
        include("array.php");




    foreach($category as $title){
        echo $title["name"] . '<br>';   
        foreach($title as $product){
            if (is_array($product)){
                foreach($product as $item){
                    echo $item["product_name"] . '<br>';
                    foreach($item as $alt_product){
                        if(is_array($alt_product)){
                            foreach($alt_product as $alt){
                            echo $alt["alt_name"] . '<br>';
                            }
                        }
                    }
                }
            }
        }
    }




        ?>