php line change including space for string

php line change including space for string

I need to put hyperlinks for the strings, but the line break is wrong. I
need to change line per string, so underlined links don't mix up each
other.
$aaa = 'aaaaaaaaaaaaaaaa'
$aaa = 'bbbbbbb';
$aaa = 'ccccccc cccccc';
for($i = 1; $i <= 3; $i++)
{
echo $aaa;
echo ' '; ----->space between string
}
Currently, I'm getting wrong outputs below:
wrong output1:
aaaaaaaaaaaaaaaa bbb
bbbb
wrong output2:
aaaaaaaaaaaaaaaa bbbbbbb ccccccc
cccccc
I need to print out like this:
aaaaaaaaaaaaaaaa bbbbbbb
ccccccc cccccc
I tried and , but it still change line per at space.