- implode: documentation ( source)
- explode: documentation ( source)
- array_unique: documentation ( source)
<?php
$s = '41254
32225
53187
53188
34609
39185
33633
46477
41019
42788
31649
28715
27340
28715
28719
33118
32318
39293
41019';
$a = array_unique(explode("\n", $s));
echo 'values (' . implode('), (', $a) . ');';