<?php

$array = array('Arif', 'sultana', 'sayla', 'roksana');


$product_id = 1;
$price_id = 2;
$date = '2017-09-01';

$arr = implode(',', array($product_id, $price_id, $date));


$a = explode(',', $arr);

//echo $a[0];


function loop($lower_lim,$upper_lim) {


    for ($i = $lower_lim; $i < $upper_lim;  ++$i) {


        if ($i == 5) {
            continue;
        }
        echo $i . '<br>';
        echo '<br>';
    }
}


loop(0,15);


loop(0,25);