Noob php question

[Hellusius]

I know this has no real relevance, but I would like to ask why this does not work.
I wanted to echo each number from 0 to 20

[code]<?php
function hello ($amount=25)
{
  for ($i = 0; $i < $amount; $i++)
  return $i;
}
?>

<?php
echo (hello($i));
?>[/code]

[Joe Haley]

return halts excecution of a function and returns the specified value, so:

[code=php:0]

function foo()
{
    echo 'a';
    return false;
    echo 'b';
}

foo();
[/code]

would simpyl echo 'a', as once the function returns, the rest of the code within it is not executed.
You could assign the value of $i to a variable, like so:

[code=php:0]
$string = $string . ' ' . $i;
[/code]
(.= is equivilent to $string = $string . $i)

And then return $string.

[Hellusius]

well, I just wanted to echo the number 0 to 20 since the function has to play itself from 0 to 20 right, so I thought, if'd take varb "i" I would be safe

[extrovertive]

[code=php:0]
function hello ($amount=20)
{
  for ($i = 0; $i <= $amount; $i++)
  echo $i . "<br />\n";
}
?>

$i = 20;
hello($i);

[/code]


Why not just have the function output it to the screen?

[Hellusius]

didn't think of that one, thanks for the header, and

[code]function hello ($amount=20)
{
  for ($i = 0; $i <= $amount; $i++)
  echo $i . "<br />\n";
}
?>

<?php
hello();
?>
[/code]

is shorter ^_^