Nested Loops

[jbw]

Hi,

 

I hope you can help with the issue below.

 

I'm trying to create a nested loop to output numbers as listed below but I can't get it to work correctly?

 

ie.

 

1

12

123

1234

12345

 

 

$count =1;
for ($row = 0; $row <=4; $row++)
{
for ($num = 0; $num <=$row; $count++){


echo "";
}
echo "<br>";
}

 

 

Regards,

 

James.

 

 

[ginerjm]

What are the limits of this exercise?

 

Interesting that you began some code, but never produced any output.

[jbw]

Hi ,

 

No limits, just to produce the outcome of >>>

 

1

12

123

1234

12345

 

here is a close working example>>

 

for ($row = 1; $row <= 5; $row++) {
for ($col = 1; $col <= $row; $col++) {
echo '*'; }
echo "\n"; }

 

Thanks,

 

Regards.

[jbw]

<?php

for ($row = 1; $row <= 5; $row++) {
for ($col = 1; $col <= $row; $col++) {
echo '*'; }
echo "<br>"; }
?>

[jbw]

I just got it working!!

 

<?php

for ($row = 1; $row <= 5; $row++) {
for ($col = 1; $col <= $row; $col++) {
echo "$col"; }
echo "<br>"; }
?>

 

Cheers.

[ginerjm]

I fail to see how it is a "close working example" when it doesn't output any numbers.....

 

 

for ($I=1;$I<6;$I++)
{
   for ($num = 1; $num<=$I;$num++)
       echo $num;
   echo "<br>";
}

 

This should be a closer example.

[jbw]

Perfect!!!!!  thanks.

 

I was wondering if you could help again in relation to the same output but this time modify the code to make the numbers smaller from 1 and biggest at 5.

 

>>>

 

1

12

123

1234

12345

 

Regards.

[ginerjm]

Add an array:

 

$sz=array("10px","12px","14px","16px","18px");

 

Then in your $row loop add this :

 

echo "<span style='font-size:${sz[$row]}>";

 

At the end of the $col loop, add this to the newline echo:

"</span>";

 

Be sure you keep things enclosed in the proper loops.