Hi – I am using the following to generate a list of posts that have certain tags:
$query = array('cat' => '4', 'orderby' => 'rand', 'tag__in' => array(7,9))
This works great.
The problem is that I can’t seem to generate the array for tag__in dynamically. If I use an array of values ( ‘tag__in’ => $array )it always outputs thus:
[tag__and] => Array (  => 7,9 )
But the query wants only values separated by commas. Because of this it only recognizes the first tag.
So how do I make an array only output comma separated values without keys? (PS I tried implode() and got the same result).
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