Table of numbers in a pattern using PHP

Question

A couple of days ago, I made a post similar to this one.

I continued my work, but went back to this exercise after.

I need 2 more patterns in a table. The last 2 tables, I did with nested For-loops, which worked excellent, but now I'm stuck again.

What I need:

1
2 1
  3 2 1
   4 3 2 1
    5 4 3 2 1
   6 5 4 3 2 1

What I tried:

<table>
        <b>Patroon III</b>
        <?php
            $rows = 6;
            for($row = 1; $row <= $rows; $row++){
                echo "<tr>";
                for($col = 6; $col >= $row; $col--){
                    if($col <= $row){ 
                        echo "<td class='td2'>" . $col . "</td>";
                    }
                    else {
                        echo "<td class='td2'>" . " " . "</td>";
                    }
                }
                echo "</tr>";
            }
        ?>
</table>

What I get:

1
2
  3
   4
    5
   6

And the second table I need:

1 2 3 4 5 6
   2 3 4 5 6
3 4 5 6
   4 5 6
5 6
   6

What I tried:

<table>
    <b>Patroon IV</b>
    <?php
        $rows = 6;
        for($row = 1; $row <= $rows; $row++){
            echo "<tr>";
            for($col = 1; $col <= $row; $col++){
                if($col >= $row){ 
                    echo "<td class='td2'>" . $col . "</td>";
                }
                else {
                    echo "<td class='td2'>" . " " . "</td>";
                }
            }
            echo "</tr>";
        }
    ?>
</table>

What I get:

1
   2
3
   4
5
   6

Any suggestions? I'm thinking about another nested for-loop, but I don't know where to start. Not sure if the if-else statement is needed.

You should attempt to learn basic loop functionality first. Try to solve this with two loops with pen and paper. You already have half of the answer from your previous problem. — OptimusCrime, Sep 18 '17 at 11:42
well, that's what i tried, been stuck here for quite some time now. I dont need an answer, but i do need a big hint — Emielh, Sep 18 '17 at 11:51
take a look at this (https://codescracker.com/cpp/program/cpp-program-print-star-pyramid-patterns.htm) first. Learn how the for loop works and then only you will be able to make the pyramids — mrid, Sep 18 '17 at 12:30

score 0 · Accepted Answer · answered Sep 18 '17 at 11:52

This is the very basic thing in php. You just need to think about the logic. That's it.

Here is your solution to your question

<b>Patroon III</b>
<table border=1>

        <?php
            $rows = 6;
            for($row = 1; $row <= $rows; $row++){
                echo "<tr>";
                for($col = 6; $col >= 1; $col--){
                    if($col <= $row){ 
                        echo "<td class='td2'>" . $col . "</td>";
                    }
                    else {
                        echo "<td class='td2'>" . " " . "</td>";
                    }
                }
                echo "</tr>";
            }
        ?>
</table>
<b>Patroon IV</b>
<table border=1>
    <?php
        $rows = 6;
        for($row = 1; $row <= $rows; $row++){
            echo "<tr>";
            for($col = 1; $col <= $rows; $col++){
                if($col >= $row){ 
                    echo "<td class='td2'>" . $col . "</td>";
                } else {
                    echo "<td class='td2'>" . " " . "</td>";
                }
            }
            echo "</tr>";
        }
    ?>
</table>

Table of numbers in a pattern using PHP

1 Answers1