Question 166365 in Wordpress Question posted in
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Can WordPress do simple array lookup?

I have an array, $persons
When I execute: print_r($persons) I get:

(
[0] => 30131
[1] => 29763
)

The two five-digit numbers are IDs for two posts in a CPT called people

How do I iterate through the array and print the title of each post?

My best guess returns nothing:

            foreach( $persons as $person ):
                $title = get_the_title( $person->ID );
                $peopleout .= $title . ', ' ;
            endforeach;
            echo $peopleout
Tags:

2

Answers


  1. 0

    Judging from your first snippet, $person inside your loop is a single value, not an object.

    That means you should change the $title = lines to this:

    $title = get_the_title($person);

    Also, you will currently be adding an extra comma at the end of the string. To resolve this, I would add the title to an array, then implode that array to echo the values. That would look like this;

    $peopleout = [];
foreach( $persons as $person ):
    $peopleout[] = get_the_title($person);
endforeach;
echo implode(", ", $peopleout);
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  2. 0

    $person is no object, so keep it plain as it contains the ID.

    $title = get_the_title($person);

    Just for fun you can do all of this as a one-liner.

    echo implode(', ', array_map(fn($id) => get_the_title($id), $persons));
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