Im having problems with loops

Question

Table:

cartId   cusid
2         3
3         3

2         4
3         4

2         5
3         5

$cartid = array(2,3);
$cusid = array(3,4,5);

Pls is there a way I can achieve the above table using foreach loop? I tried this

foreach($cartid as $index=>$cartid2){
    foreach($cusid as $index=>$cusid2){
     echo "$cartid2 ===== $cusid2";
    }
}

But didn't work, its saying offset. Pls I need help. View the image for better understanding

Answer 1

Nick thanks for your answer, it really worked for me, i appreciate so much. I had to use an if statement to get exactly what i wanted.

foreach($rider_id1 as $rider_id2){   
    foreach($cart_id1 as $cart_id2){
        if($rider_id2!=""){
            if($cart_id2!=""){
                echo "$cart_id2 ====== $rider_id2<br>";
            }
        }
    }
    echo "<br>";
}

Thanks dude!

Answer 2

You have a couple of problems with your code. Firstly you are overwriting $index in the inner loop (however, since $index is not used, that's not a big deal). Secondly your loops are nested incorrectly, your outer loop should be on $cusid and the inner loop on $cartid. Try this:

$cartid = array(2,3);
$cusid = array(3,4,5);

echo "cartid\tcusid\n";
foreach($cusid as $cus){
    foreach($cartid as $cart){
        echo "$cart\t$cus\n";
    }
    echo "\n";
}

Output:

cartid cusid
2      3
3      3

2      4
3      4

2      5
3      5

Demo on 3v4l.org