<?
function ayirici ($veri){
if ( strlen($veri) > 10){
$oz= 0;
while ($oz < strlen($veri)/10){
$ge = substr($veri,$oz*10,10);
print $ge."<br>";
$oz++;
}
}
}
$veri = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
print ayirici("$veri");
?>

aaaaaaaaaa
aaaaaaaaaa
aaaaaaaaaa
aaaaaaaaaa
aaaaaaaaaa
aaaaa