I am not sure if it's a bug or misinterpretation on my side
but I expect something like  /[0-9]{,10}/ to match
a number at most 10 chars.

the following snipet reproduces the "problem", if any:

if (preg_match('/^[0-9]{,10}$/',3)) {
    echo "matched";
 } else {
    echo "not matched";
}
outputs "not matched".

And if I write {1,10} it matches. So the question is,
is the "minimum" quantifier mandatory?

ciao