//echo -a $regex(guest12343,/([0-9]){5}/) $regml(1)
In this case $regex returns 1 and $regml(1) the last match number (3)

//echo -a $regex(guest12343,/([0-9]){4,5}/) $regml(1)
1st question:
Why $regex returns 0 in the last example? itīs look like the 1st case only I change 5 times for 4 or 5 times.

2nd question: How I Can return the whole number and not only the last number match? (with $regml)