Change colors of text based on while loop from an array of colors

Question

I want to run a forloop inside a while loop so that i will be able to change the colors of text accordingly. This is my code

       $leftBrdColorArray = array("g-brd-blue-left", "g-brd-red-left", "g-brd-black-left", "g-brd-yellow-left");
        $rowCount = $runselectGameInfo -> num_rows; //3 is the count
         if($runselectGameInfo -> num_rows > 0){
           while($getGameInfo = $runselectGameInfo -> fetch_assoc()){

             for($i = 0; $i <= $rowCount; $i++){

           Hello <div class="<?php echo $leftBrdColorArray[$i];?>">World</div>
         }
    }
}

But it prints 12 times insted of the rowcount i.e 3.

Sure! You are looping twice!! Your while and for loops are just the same. — José Carlos PHP
– José Carlos PHP, Commented Feb 24, 2018 at 17:00
probably the while loop runs twice. For each run the for loop runs 3 times. $runselectGameInfo -> fetch_assoc() have 2 results in it. make an echo statement inside the while loop but outside the for loop to test how many times it runs — Istiaque Ahmed
– Istiaque Ahmed, Commented Feb 24, 2018 at 17:01
If possible can you illustrate with code. How do i achieve this? — BRAHMA
– BRAHMA, Commented Feb 24, 2018 at 17:03
for loop runs for the values of $i starting from 0 to 3 inclusive, that is 4 times. Are you sure you get the printing 6 times ? — Istiaque Ahmed
– Istiaque Ahmed, Commented Feb 24, 2018 at 17:03
@BRAHMANANDAMOHANTYBRAHMA, did you do the test I suggested ? — Istiaque Ahmed
– Istiaque Ahmed, Commented Feb 24, 2018 at 17:07

Paulo Hgo · Accepted Answer · 2018-02-24 17:27:06Z

1

If you want to just print a different color every time but not necessarily all 4 of them (for each row), then the following should do it:

$leftBrdColorArray = array("g-brd-blue-left", "g-brd-red-left", "g-brd-black-left", "g-brd-yellow-left");
$arrsize = count($leftBrdColorArray);
        $rowCount = $runselectGameInfo -> num_rows; //3 is the count
         if($runselectGameInfo -> num_rows > 0){
           i=0;
           while($getGameInfo = $runselectGameInfo -> fetch_assoc()){
             if($i > $arrsize - 1) $i = 0;
             echo 'Hello <div class="$leftBrdColorArray[$i]">World</div>';
             i++;
         }
    }

The problem here will be if you have more rows than colors... you'd have to manage that and add logic to just get a color within the range of your array.

edited Feb 24, 2018 at 17:27

answered Feb 24, 2018 at 17:17

Paulo Hgo

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3 Comments

BRAHMA Over a year ago

Yes exactly, that is what i want to achieve, i am trying to get the logic, coz as per you once the loop has more rows than my colors it will be emptied. But i want that to run and colors to be repeated.

Paulo Hgo Over a year ago

I just edited the answer. You have to know the size of the array of colors and the check if has reached the last one, bring it back to zero. I didn't test but this should work.

BRAHMA Over a year ago

YES THIS ONE IS WORKING.

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