Correct image path from an array

Question

I am trying to display an image, where the path is defined in an array not from a database.

First index.php calls app/app.php, which then includes the $animals array from animals.php.

The problem is how do I access $animals in index.php and get the value of the pics key?

index.php

<?php require_once __DIR__ . '/app/app.php';
    //var_dump($animals);?>
<?php foreach ($animals as $animal): ?> <br>
    <a href="#"><?php echo $animal['name'] ?></a> 
    <?php echo $animal['size'] ?>
    <img src="<?php echo $animal['pics'] ?>" alt="Pic 1">
    <?php //echo "<img src='" . $pics . "' alt=''>";  ?>
<?php endforeach; ?>

app/app.php:

<?php

ini_set('display_errors', '1');
error_reporting('E_ALL');
$animals = require_once __DIR__ . '/Db/animals.php';

animals.php:

<?php

return [
    [
        'name' => 'cow',
        'size' => 20,
        'pics' => ['/photos/cow1.jpg'],
         //'pics' => 'photos/cow1.jpg',
         //'pics' => '<img class="wrap" src="photos/cow1.jpg">',
         //'pics' => './photos/cow1.jpg';
         'detailes' => [
             'colour' => 'brown',
             'origin' => 'N Italy',
         ],
    ],
];

It's frustrating that I can't solve it. Maybe someone could help.

pics is a sub array, so $animal['pics'][0] is the first one — user9487972
– user9487972, Commented May 29, 2018 at 21:46
var_dump is your friend. Maybe with xdebug for pretty output. Good to get in habit of deciphering those dumps. — ficuscr
– ficuscr, Commented May 29, 2018 at 21:49
Thanks Smith. I ask you if I defined corectly 'pics' in animals.php? — php idiot
– php idiot, Commented May 29, 2018 at 21:54

ficuscr · Accepted Answer · 2018-05-29 21:59:09Z

0

See if this helps...

array(1) {
  [0]=>
  array(4) {
    ["name"]=>
    string(3) "cow"
    ["size"]=>
    int(20)
    ["pics"]=>
    array(1) {
      [0]=>
      string(16) "/photos/cow1.jpg"
    }
    ["detailes"]=>
    array(2) {
      ["colour"]=>
      string(5) "brown"
      ["origin"]=>
      string(7) "N Italy"
    }
  }
}

You actually want: echo $a[0]['pics'][0];

Arrays, inside arrays. It does get confusing but will fast become second nature to work with.

Play around with var_dump...

var_dump($a);
var_dump($a[0]);
etc...

or try iterating when stumped...

foreach ($a as $key => $value) {
 echo "$key -> $value";
}

That would result in NOTICE Array to string conversion because $value is an array. Try adding a second (nested) foreach loop. When you can iterate over the entire array you know you understand it... see also: is_array and recursion.

edited May 29, 2018 at 21:59

answered May 29, 2018 at 21:53

ficuscr

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