Question

I have a table (country_table) with a list of all countries and their respective ids.

|country_id|country_name|
|ES        |Spain       |
.
.
.

I have an array, fetched from another table using fetch_array that looks like this:

$array = Array(
    [0]=>Array([country_id]=>'ES')
    [1]=>Array([country_id]=>'DE')
    [2]=>Array([country_id]=>'GB'))

How can I select the records (country_id and country_name) from country_table that do not exist in the table but exist in the array?

Answer 1

$sql ="SELECT country_id, country_name FROM country_table
       WHERE country_id NOT IN (". implode(",", $array) .")";

implode() function will generate comma-seprated string representation of array elements .