Question

I have an array called $array_all;

This array will always have 3 possible values:

• 1,
• 1,2,
• 1,2,3,

I created a string from the array while in a foreach loop and concatenated a comma at the end.

So, now I have a nice string that outputs the exact value the way it should.

1,2,3, I can copy this output from my browser and insert it into my wordpress function and everything displays perfectly.

The problem arises when I insert this string variable in the wordpress function directly, it fails.

Anybody have any ideas?

Code below:

<?php 
$faux_array = array();
$faux_array_all;

if($five_loans != ''): 
    $faux_array[] = "781";
endif; 
if($logbook_loans != ''): 
    $faux_array[] = "797";
endif;
if($easy_money != ''): 
    $faux_array[] = "803";
endif;

foreach($faux_array as $faux_array_value): 
    $faux_array_all .= $faux_array_value . ',';
endforeach;

echo $faux_array_all;

$args = array
(
    'posts_per_page' => 10,
    'post_type' => 'lender',
    'order' => 'ASC',
    'orderby' => 'date',
    'post__in' => array($faux_array_all)
);
?>

Answer 1

Mmh for one, you can avoid the loop with just:

$faux_array_all = implode(',', $faux_array);

which would also solve the trailing comma proble.m.

On the other hand, you pass an array to post__in that only contains one element (the string). I think what you really want is

'post__in' => $faux_array

as $faux_array is already an array with IDs.
Read about Post & Page Parameters, there you can see that you need to pass an array of post IDs to the function, not an array with one string value:

• ‘post__in’ => array(5,12,2,14,7) – inclusion, lets you specify the post IDs to retrieve