Need to get specific data from array

Question

I'm building a custom carousel for a client. I've got a function which gets blocks of three images from all of the images attached to a post:

global $rental;

$images = get_children( array(
    'post_parent' => $rental_id,
    'post_status' => 'inherit',
    'post_type' => 'attachment',
    'post_mime_type' => 'image',
    'order' => 'ASC',
    'orderby' => 'menu_order ID'
) );

$array = $images;
$number_of_elements = 3;
$count = count( $array );
$split = array();

for ( $i = 0; $i <= $count - 1; $i++ ) {
    $slices = array_slice( $array, $i , $number_of_elements);
    if ( count( $slices ) != $number_of_elements )
        break;

    $split[] = $slices;
}

if ($split) :
    foreach ($split as $outeritem) :    
        echo '<div class="Outer Top">';
            foreach ($split as $inneritem) :
                echo '<div class="Inner Top">';
                echo '<img src="' . $inneritem . '">';
                echo '</div>';
             endforeach;
        echo '</div>';
    endforeach;
endif;

//print_r( $split );

All I need to finalize this is to replace inneritem with the URL of the image. The data is all there in an array, and as you can see I just need to pull the value of guid for each item. The array below comes from uncommenting the print_r( $split ); and I've removed all the extraneous data for the sake of tidiness:

Array (
    [0] => Array (
        [0] => WP_Post Object (
            [ID] => 120
            [guid] => http://******/wp-content/uploads/2016/12/T15923-11-1-1.jpg
        )
        [1] => WP_Post Object (
            [ID] => 121
            [guid] => http://******/wp-content/uploads/2016/12/T15923-12-1-1.jpg
        )
        [2] => WP_Post Object (
            [ID] => 122
            [guid] => http://******/wp-content/uploads/2016/12/T15898.jpg
        )
    )
    [1] => Array (
        [0] => WP_Post Object (
            [ID] => 121
            [guid] => http://******/wp-content/uploads/2016/12/T15923-12-1-1.jpg
        )
        [1] => WP_Post Object (
            [ID] => 122
            [guid] => http://******/wp-content/uploads/2016/12/T15898.jpg
        )
        [2] => WP_Post Object (
            [ID] => 123
            [guid] => http://******/wp-content/uploads/2016/12/T15923-13-1-1.jpg
        )
    )
    [2] => Array (
        [0] => WP_Post Object (
            [ID] => 122
            [guid] => http://******/wp-content/uploads/2016/12/T15898.jpg
        )
        [1] => WP_Post Object (
            [ID] => 123
            [guid] => http://******/wp-content/uploads/2016/12/T15923-13-1-1.jpg
        )
        [2] => WP_Post Object (
            [ID] => 124
            [guid] => http://******/wp-content/uploads/2016/12/T15923-14-1.jpg
        )
    )
)

What is this array output you've given us? Is it of $split variable? — Howdy_McGee
– Howdy_McGee ♦, Commented Jan 9, 2017 at 20:54
The array you posted above, is that the inneritem or outeritem? — Tunji
– Tunji, Commented Jan 9, 2017 at 21:33
@Benoti get_permalink() gets the permalink of the parent post so doesn't help. — warm__tape
– warm__tape, Commented Jan 9, 2017 at 21:42

Community · Accepted Answer · 2017-04-13 12:37:42Z

1

You should be able to rewrite what you have about and also use get_permalink as @Benoti stated while omitting the $split array.

get_permalink accepts either the Post ID or a post object.

global $rental;

$images = get_children( array(
    'post_parent' => $rental_id,
    'post_status' => 'inherit',
    'post_type' => 'attachment',
    'post_mime_type' => 'image',
    'order' => 'ASC',
    'orderby' => 'menu_order ID'
) );

$array = $images;
$number_of_elements = 3;
$count = count( $array );

for ( $i = 0; $i <= $count - 1; $i++ ) {
    $slices = array_slice( $array, $i , $number_of_elements);
    if ( count( $slices ) != $number_of_elements )
        break;

    echo "<div class='Outer Top'>";
    foreach( $slices as $inneritem ) {
        $link = wp_get_attachment_url( $inneritem->ID );
        echo "<div class='Inner Top'>";
        echo "<img src=' $link  '>";
        echo "</div>";
    }
    echo "</div>";
}

edited Apr 13, 2017 at 12:37

CommunityBot

1

answered Jan 9, 2017 at 21:48

Tunji

2,9611 gold badge19 silver badges28 bronze badges

That's getting closer, but it links to the attachment page rather than the media file.

warm__tape
– warm__tape

2017-01-09 21:54:59 +00:00
Commented Jan 9, 2017 at 21:54
1

I've updated my answer. You really don't need to have the multiple foreach's

Tunji
– Tunji

2017-01-09 22:01:45 +00:00
Commented Jan 9, 2017 at 22:01
Just needed to swap wp_get_attachment_image_url for wp_get_attachment_url. Also, it creates an extra empty instance of <div class='Outer Top'></div> at the end. Any ideas on how to get rid of that?

warm__tape
– warm__tape

2017-01-10 01:56:50 +00:00
Commented Jan 10, 2017 at 1:56
Most likely because I'm adding the outer div before checking the break clause. I've updated my answer

Tunji
– Tunji

2017-01-10 05:21:58 +00:00
Commented Jan 10, 2017 at 5:21

Add a comment |

Benoti · Accepted Answer · 2017-01-09 22:03:06Z

3

I didn't test anything and read your code, but it seems that you can get_permalink() as I was told in the comment but it's true that you will get the attachment page not its url.

You can access to the object ID, guid easily

wp_get_attachment_url($inneritem[$i]->ID);

So

if ($split) :
foreach ($split as $outeritem) :    
    echo '<div class="Outer Top">';
    $i=0;
        foreach ($split as $inneritem) :
            echo '<div class="Inner Top">';
            echo '<img src="' . wp_get_attachment_url($inneritem[$i]->ID) . '">';
            echo '</div>';
            $i++;
         endforeach;
    echo '</div>';
    endforeach;
endif;

edited Jan 9, 2017 at 22:03

answered Jan 9, 2017 at 21:56

Benoti

2,4962 gold badges14 silver badges14 bronze badges

2

Maybe use something like wp_get_attachment_url()

Howdy_McGee
– Howdy_McGee ♦

2017-01-09 21:59:30 +00:00
Commented Jan 9, 2017 at 21:59
1

That exactly what I change in my answer @Howdy.

Benoti
– Benoti

2017-01-09 22:00:12 +00:00
Commented Jan 9, 2017 at 22:00

Add a comment |

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