- range: documentation ( source)
- number_format: documentation ( source)
- printf: documentation ( source)
<?php
$selectedNumber = 75000;
echo '<option value="0">Min Price</option>';
echo "\n"; // for the sake of demo readability
foreach (range(25000, 200000, 25000) as $number) {
printf(
'<option value="%s"%s>%s</option>',
$number,
$number == $selectedNumber ? ' selected' : '',
number_format($number)
);
echo "\n"; // for the sake of demo readability
}