How to get the minimum value from array row

Question

I trying to get the minimum values from the any column contains \"xx\" in the column name.

Below is my code:

Answer 1

Instead of looping again inside just use the min() function.

$lowest_keys = array();

foreach($array as $item)
{
     unset( $item[ 'id' ] );
     $lowest_keys[] = min( $item );
}